CN115853183A - Roof structure of slope roof passive house and construction method thereof - Google Patents

Abstract

A roof structure of a slope roof passive house and a construction method thereof comprise a top floor slab, a roof panel, a steam-isolating layer, a roof heat-insulating layer, a waterproof coiled material layer, a roof mortar protective layer, a water-guiding strip, a tile-hanging strip, a roof color tile and a cornice structure; the top floor is arranged between the tops of the outer walls; baffle plates are arranged at two ends of the roof panel; the steam-isolating layer is fully paved on the roof panel; the roof heat-insulating layer is laid on the steam-isolating layer, and a space is reserved between the two sides of the roof heat-insulating layer and the baffle; rock wool heat-insulating layers are filled between the roof heat-insulating layer and the baffle; a plurality of groups of heat preservation layer fixing assemblies are arranged on the roof panels on the two sides of the ridge at intervals; heat-insulating bridge anchors are arranged in the roof heat-insulating layer at intervals; the waterproof coiled material layer is laid on the top of the roof heat-insulating layer; the roof mortar protective layer is arranged on the top of the waterproof roll layer; and a section steel keel is arranged in the mortar protective layer of the roof. The invention solves the technical problems that the traditional heat-insulating layer is easy to fall off and the requirement of a passive heat-insulating bridge cannot be met between the original roof tile and structural concrete.

Description

A kind of roof structure and construction method of slope roof passive house

technical field

The invention belongs to the technical field of building engineering construction, and in particular relates to a roof structure and a construction method of a sloped roof passive house.

Background technique

Compared with ordinary energy-saving buildings, the roofs of ultra-low-energy buildings need efficient insulation measures and are continuous with each other; the traditional sloping roof is only 200mm high, and it is dry-laid according to the original construction method. Only the lower two floors are protected by insulation. The first layer of insulation is easy to fall off without shelter; the original roof tiles and solar foundations are pre-embedded steel bars and structural concrete piers, which cannot meet the requirements of passive thermal break bridges.

Contents of the invention

The purpose of the present invention is to provide a roof structure and construction method for passive houses with sloping roofs, to solve the technical problems that the traditional thermal insulation layer is easy to fall off and the gap between the original roof tiles and the structural concrete cannot meet the requirements of passive thermal break bridges.

In order to achieve the above object, the present invention adopts the following technical solutions.

A roof structure of a passive house with a sloping roof, comprising a top floor and a roof panel; the top floor is arranged between the tops of the outer walls of the main structure; the cross section of the roof panel is a figure-eight shape, made of reinforced concrete and the left and right ends of the roof panel respectively exceed the outer sides of the outer walls on both sides; baffles are respectively arranged at both ends of the roof panel; a roof ridge structure is arranged in the middle of the top of the roof panel along the longitudinal length; the roof The structure also includes a vapor barrier layer, a roof insulation layer, a waterproof coiled material layer, a roof mortar protection layer, a water strip, a tile strip, roof tiles and a cornice structure; the vapor barrier layer is fully covered on the roof panel; the The roof insulation layer is laid on the vapor barrier layer, and there is a gap between the two sides of the roof insulation layer and the baffle; the thickness of the roof insulation layer is not less than 350mm, including the lower insulation layer, the middle insulation layer and the upper insulation layer. ; Adhesive connection between the lower thermal insulation layer and the vapor barrier layer, adhesive connection between the middle thermal insulation layer and the lower thermal insulation layer, and adhesive connection between the upper thermal insulation layer and the middle thermal insulation layer; the lower thermal insulation layer, the middle thermal insulation layer Both the first layer and the upper insulation layer are spliced by multiple rows of insulation board units along the longitudinal staggered seams, and each row of insulation board units is continuously laid along the inclination direction of the roof panel; the lower insulation layer, middle insulation layer and upper insulation layer of the same row The splicing joints of the panel units are staggered; the gap between the roof insulation layer and the baffle is filled with a rock wool insulation layer, and the thickness of the rock wool insulation layer is adapted to the thickness of the roof insulation layer; On the panel, near the positions of the baffles on both sides, there are multiple sets of insulation layer fixing components arranged at intervals along the longitudinal direction, and each group of insulation layer fixing components is arranged at intervals along the inclination direction of the roof panel; the insulation layer fixing components include: The first heat insulation pad, the first connecting plate, the insulation block, the first anchor bolt and the fixing rod; the bottom surface of the roof insulation layer and the position corresponding to the insulation layer fixing assembly are provided with a first groove, and the first groove The vertical section of the groove is trapezoidal; the vapor barrier layer is arranged close to the groove wall of the first groove at the position of the first groove; And the upper part is arranged in the first groove in turn, and between the left and right sides of the first heat insulation backing plate and the insulation block and the vapor barrier layer in the first groove is filled with a crack-resistant mortar layer; the first anchor The bolts are installed in the heat insulation block, the first connecting plate and the first heat insulation backing plate, and are fixedly connected with the roof panel; The block is fixedly connected with the first connecting plate, and the upper end of the fixing rod is located in the roof mortar protection layer; the heat insulation bridge anchor bolt is arranged at intervals in the roof insulation layer, and the lower end of the heat insulation bridge anchor bolt is inserted into the roof panel, and The roof panel is fixed, and the upper end of the thermal break bridge anchor bolt is crimped on the upper surface of the roof insulation layer; the waterproof coiled material layer is laid on the top of the roof thermal insulation layer; the roof mortar protection layer is arranged on the top of the waterproof coiled material layer , and a reinforcing mesh sheet is laid in the roof mortar protection layer; the smooth water strips, tile hanging strips and roof tiles are sequentially arranged on the top of the roof mortar protection layer from bottom to top; the roof mortar protection layer is provided with Shaped steel keel; the shaped steel keel is correspondingly connected to the upper part of the fixing rod of each group of insulation layer fixing components along the inclination direction of the roof panel, and the lower part of the shaped steel keel is buried in the roof mortar protective layer, and the upper part of the shaped steel keel is located between the water strips The eaves structure is arranged on the part where the roof panel exceeds the outer side of the outer wall, including the eaves insulation layer, the eaves keel, the keel connection assembly and the outsourcing aluminum plate; the eaves insulation layer is arranged on the outer surface of the outer wall, the eaves The bottom of the roof panel at the place and the end surface of the cornice roof panel; the cornice keel is arranged on the outside of the cornice insulation layer; the keel connection components have a group, which are buried in the cornice insulation layer at intervals, and respectively connect the cornice joist to the outer wall 1. Roof panel connection; the outsourcing aluminum plate cover is arranged on the outside of the eaves keel.

Preferably, the ridge structure includes ridge tiles, ridge tiles, and top decorative covers; the ridge tiles are covered on the roof panels on both sides of the ridge along the longitudinal length; In the gap between the roof panels on both sides of the ridge; the top decorative cover is covered on the top of the ridge tiles.

Preferably, the roof structure also includes a solar machine room; the solar machine room is arranged on the top floor, and the top of the solar machine room exceeds the top of the roof panel; the solar machine room includes a side wall, a roof, a machine room insulation layer, and a machine room Waterproof layer and machine room mortar protection layer; the bottom of the side wall is supported on the top floor, and the side wall and the roof panel are integrally formed; the machine room insulation layer is arranged on the outer side of the side wall above the roof insulation layer and the top surface of the roof , the bottom surface of the machine room insulation layer is bonded to the top surface of the roof insulation layer; the machine room waterproof layer is formed by extending upward from the waterproof coil layer at the position of the solar machine room, and the machine room waterproof layer is covered on the outside of the machine room insulation layer; The machine room mortar protection layer is applied on the outside of the machine room waterproof layer; the roof tiles are bonded and connected to the machine room mortar protection layer at the position of the solar machine room.

Preferably, the length of the top side of the vertical section of the first groove is not less than 200mm, the height is not less than 110mm, and the length of the bottom side is not less than 300mm; the thickness of the insulation block is not less than 50mm; the second The thickness of a thermal insulation pad is not less than 50mm; the thickness of the first connecting plate is not less than 20mm.

Preferably, the thermal break bridge anchor bolt includes an expansion tube, a steel nail and a bridge break cap; the expansion tube and the bridge break cap are made of thermal insulating material, and the expansion tube includes a The thermal break bridge section, the transition section, the steel nail sleeve section and the expansion buffer section are set in sequence; the end of the heat break bridge section is provided with an annular pressure plate, and the section diameter of the heat break bridge section is larger than the steel nail sleeve section The cross-sectional diameter; the transition section is a variable-section pipe section, and the end face diameter of the transition section connected to the heat-breaking bridge section is adapted to the diameter of the heat-breaking bridge section, and the end face diameter of the transition section connected to the steel nail casing section The diameter of the end surface is adapted to the diameter of the steel nail sleeve section; the steel nail is inserted into the steel nail sleeve section, and the enlarged end of the steel nail is located in the transition section, and the sharp end of the steel nail is located in the expansion buffer section; The broken bridge sealing cap is sealed at the end of the heat breaking bridge section.

Preferably, point-frame bonding is used between the thermal insulation board unit of the lower thermal insulation layer and the vapor barrier layer, and the bonding area between the lower thermal insulation layer and the vapor barrier layer is not less than 60%; the middle thermal insulation layer and the lower thermal insulation layer Use horizontal strip bonding between them, and the bonding area between the middle insulation layer and the lower insulation layer is not less than 90%; the upper insulation layer and the middle insulation layer use horizontal strip bonding, and the upper insulation layer and the middle insulation layer The bonding area between them is not less than 90%.

Preferably, the keel connection assembly includes a second heat insulation backing plate, a second connecting plate, a second anchor bolt and a connecting rod; a second groove is opened on the inner side of the cornice insulation layer; the second The heat insulation pad is embedded in the second groove; the second connecting plate is attached to the outer surface of the second heat insulation pad, and is connected with the outer wall or the roof panel through the second anchor bolt; the connection The rod is vertically welded and connected to the second connecting plate, and the outer end of the connecting rod protrudes from the cornice insulation layer and is connected with the cornice keel.

A construction method for a roof structure of a sloped roof passive house comprises the following steps.

Step 1, laying the vapor barrier layer, and bonding the vapor barrier layer to the roof panel.

Step 2: Construction of thermal insulation layer fixing components: On the roof panels on both sides of the ridge, near the baffles on both sides, set multiple sets of thermal insulation layer fixing components at longitudinal intervals, and each group of thermal insulation layer fixing components along the roof panel Slope direction interval setting.

Step 3, bonding the roof insulation layer and the rock wool insulation layer: set the rock wool insulation layer on the roof panel inside the baffle; the construction of the roof insulation layer is laid in the direction from the cornice to the ridge, and the three layers of insulation are pasted in staggered joints. The joints between adjacent insulation board units greater than or equal to 2mm are filled with insulation materials and sealed with polyurethane foam.

Step four, construct the cornice structure.

Step 5, Construction of waterproof membrane layer: The roof insulation layer paved on the same day is constructed on the top of the roof insulation layer on the same day, and the outer edge of the waterproof membrane layer extends to the outer edge of the cornice structure.

Step 6, constructing the profiled steel keel: Correspondingly connect the profiled steel keel to the upper part of the fixing rod of each set of insulation layer fixing components along the inclination direction of the roof panel.

Step 7, constructing the roof mortar protection layer: constructing the roof mortar protection layer on the top of the waterproof membrane layer, and laying the reinforcement mesh on the roof mortar protection layer at the same time.

Step 8: Construction of water strips, hanging tiles and roof tiles in sequence until the construction of roof tiles is completed, so far the construction is completed.

Preferably, in step 2, between the middle insulation layer and the lower insulation layer, between the upper insulation layer and the middle insulation layer, PU glue is used for bonding, the gap between adjacent insulation board units shall not be greater than 5mm, and the gap between adjacent insulation board units The parts with a height difference greater than 5mm are ground and smoothed.

Preferably, when a solar machine room is provided on the top floor, the side walls and roof of the solar machine room are integrally poured into the roof panel; The mortar protection layer of the machine room and the roof mortar protection layer shall be constructed at the same time.

Compared with the prior art, the present invention has the following characteristics and beneficial effects.

1. Due to the high bulk density of rock wool and the thick insulation layer, the top paste will have a greater risk of falling off; therefore, the present invention arranges multiple sets of insulation layer fixing components at vertical intervals on the top of the roof panel, and the insulation layer fixing components are anchored in the On the roof panel, and the upper end of the insulation layer fixing component is embedded in the roof insulation layer to effectively support the roof insulation layer; at the same time, the insulation layer fixing component is provided with an insulation pad to separate the connection plate from the roof panel, blocking the heat The thermal bridge between the backing plate and the roof panel meets the technical problems required by the passive thermal break bridge.

2. In order to meet the requirements of passive thermal insulation bridges and super-thick heat preservation and fixing requirements, the roof structure adopts the form of embedded parts + fixing rods to fix the roof structure, which can not only meet the requirements of thermal insulation bridges, but also ensure ultra-thick heat preservation Auxiliary fixation of layers; the present invention ensures the integrity of the ultra-thick thermal insulation layer and avoids wet operation. The three-layer thermal insulation layer adopts the thermal insulation layer fixing component and the steel keel auxiliary fixation, and is fixed as a whole by the heat-breaking bridge anchor bolt, which solves the problem of The traditional thermal insulation layer is easy to fall off and the technical problem that the gap between the original roof tile and the structural concrete cannot meet the requirements of the passive thermal break bridge.

3. The insulation layer of the sloped roof of the present invention has a thickness of 350 mm, and adopts three-layer staggered seam paving; at the same time, the insulation system on the roof panel and the outside of the solar machine room is a complete insulation layer system, which effectively ensures the insulation performance of the roof structure .

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural view of setting a solar machine room on a roof structure in the present invention.

Fig. 2 is a structural schematic diagram of the roof structure in the present invention.

Fig. 3 is a structural schematic diagram of the connection between the roof panel and the solar machine room in the present invention.

Fig. 4 is a schematic diagram of the structure layer at the top of the roof panel in the present invention.

Fig. 5 is a schematic structural view of the cornice structure in the present invention.

Fig. 6 is a schematic structural view of the thermal insulation layer fixing assembly in the present invention.

Fig. 7 is a structural schematic diagram of the ridge structure in the present invention.

Fig. 8 is a schematic structural view of the keel connection assembly in the present invention.

Fig. 9 is a schematic structural view of the interrupted thermal bridge anchor of the present invention.

Fig. 10 is a schematic diagram of the disassembled thermal bridge anchor bolt of the present invention.

Fig. 11 is a structural schematic diagram of the roof insulation layer in the present invention.

Fig. 12 is a schematic structural view of the cornice insulation layer in the present invention.

Reference signs: 1-top floor, 2-roof panel, 3-outer wall, 4-baffle, 5-roof structure, 5.1-roof tile, 5.2-ridge tile lying mortar, 5.3-top decorative cover, 6- Vapor barrier layer, 7-roof insulation layer, 7.1-lower insulation layer, 7.2-middle insulation layer, 7.3-upper insulation layer, 8-waterproof membrane layer, 9-roof mortar protection layer, 10-water strip, 11-hanging Tile bar, 12-roof color tile, 13-rock wool insulation layer, 14-fixation component of insulation layer, 14.1-first heat insulation backing plate, 14.2-first connecting plate, 14.3-insulation block, 14.4-first anchor bolt , 14.5 - fixed rod, 15 - the first groove, 16 - anti-crack mortar layer, 17 - cornice insulation layer, 18 - cornice keel, 19 - keel connection component, 19.1 - second heat insulation pad, 19.2 - second Connecting plate, 19.3 - second anchor bolt, 19.4 - connecting rod, 20 - outsourcing aluminum plate, 21 - thermal break bridge anchor bolt, 21.1 - expansion tube, 21.1.1 - heat break bridge section, 21.1.2 - transition section, 21.1.3-Steel nail casing section, 21.1.4-Expansion buffer section, 21.1.5-Ring plate, 21.2-Steel nail, 21.3-Broken bridge sealing cap, 22-Reinforcing mesh, 23-Steel keel, 24- Solar energy machine room, 24.1-side wall, 24.2-roof, 24.3-insulation layer of machine room, 24.4-waterproof layer of machine room, 24.5-mortar protective layer of machine room, 25-second groove.

Detailed ways

As shown in Figure 1-12, the roof structure of this kind of slope roof passive house includes a top floor 1 and a roof panel 2; the top floor 1 is arranged between the tops of the outer walls 3 of the main structure; the roof The cross-section of the panel 2 is a figure-eight shape, made of reinforced concrete, and the left and right ends of the roof panel 2 respectively exceed the outer sides of the outer walls 3 on both sides; the two ends of the roof panel 2 are respectively provided with baffles 4; In the middle of the top of the roof panel 2, a roof ridge structure 5 is arranged along the longitudinal length; Tile strips 11, roof tiles 12 and cornice structure; the vapor barrier layer 6 is fully spread on the roof panel 2; the roof insulation layer 7 is laid on the vapor barrier layer 6, and both sides of the roof insulation layer 7 are connected with the There is a space between the boards 4; the thickness of the roof insulation layer 7 is not less than 350mm, including the lower insulation layer 7.1, the middle insulation layer 7.2 and the upper insulation layer 7.3; Adhesive connection, adhesive connection between the middle insulation layer 7.2 and the lower insulation layer 7.1, adhesive connection between the upper insulation layer 7.3 and the middle insulation layer 7.2; the lower insulation layer 7.1, the middle insulation layer 7.2 and the upper insulation layer 7.3 They are all composed of multiple rows of thermal insulation board units spliced along the longitudinal staggered joints, and each row of thermal insulation board units is continuously laid along the inclination direction of the roof panel 2; the lower insulation layer 7.1, the middle insulation layer 7.2 and the upper insulation layer 7.3 of the same row of insulation boards The seams of the units are staggered; the gap between the roof insulation layer 7 and the baffle plate 4 is filled with a rock wool insulation layer 13, and the thickness of the rock wool insulation layer 13 is compatible with the thickness of the roof insulation layer 7; On the roof panels 2 on both sides, at positions close to the baffles 4 on both sides, there are multiple sets of thermal insulation layer fixing components 14 arranged at intervals along the longitudinal direction, and each group of thermal insulation layer fixing components 14 is arranged at intervals along the inclination direction of the roof panel 2 The thermal insulation layer fixing assembly 14 includes a first thermal insulation backing plate 14.1, a first connecting plate 14.2, a thermal insulation block 14.3, a first anchor bolt 14.4 and a fixed rod 14.5; the bottom surface of the roof thermal insulation layer 7, the corresponding thermal insulation layer The position of the fixing assembly 14 is provided with a first groove 15, and the vertical section of the first groove 15 is trapezoidal; Groove wall setting; the first heat insulation backing plate 14.1, the first connecting plate 14.2 and the heat preservation block 14.3 are sequentially arranged in the first groove 15 from bottom to top, and the first heat insulation backing plate 14.1 and the heat preservation block 14.3 The crack-resistant mortar layer 16 is filled between the left and right sides of the left and right sides of the first groove 15 and the vapor barrier layer 6; the first anchor bolt 14.4 penetrates the insulation block 14.3, the first connecting plate 14.2 and the first heat insulation In the backing plate 14.1, it is fixedly connected with the roof panel 2; the fixed rod 14.5 is perpendicular to the roof panel 2 and arranged in the roof insulation layer 7, and the lower end of the fixed rod 14.5 passes through the insulation block 14.3 and is fixed with the first connecting plate 14.2 connection, the upper end of the fixing rod 14.5 is located in the roof mortar protection layer 9; the heat insulation bridge anchor bolt 21 is arranged at intervals in the roof insulation layer 7, and the lower end of the heat insulation bridge anchor bolt 21 is inserted into the roof panel 2 and connected with the roof panel 2 fixed, the upper end of the thermal break bridge anchor bolt 21 is crimped on the upper surface of the roof insulation layer 7; the waterproof coiled material layer 8 is laid on the top of the roof insulation layer 7; the roof mortar protection layer 9 is arranged on the waterproof roll The top of the material layer 8, and the steel mesh sheet 22 is laid in the roof mortar protection layer 9; Above; the roof mortar protection layer 9 is provided with a profiled steel keel 23; the profiled steel keel 23 is correspondingly connected to the upper part of the fixing rod 14.5 of each group of insulation layer fixing components 14 along the inclination direction of the roof panel 2, and the profiled steel keel 23 The lower part of the roof is buried in the roof mortar protective layer 9, and the upper part of the shaped steel keel 23 is located between the water strips 10; the cornice structure is arranged on the position where the roof panel 2 exceeds the outer side of the outer wall body 3, and includes a cornice insulation layer 17, Cornice keel 18, keel connection assembly 19 and outsourcing aluminum plate 20; the eaves insulation layer 17 is arranged on the outer side of the outer wall 3, the bottom of the roof panel 2 at the eaves and the end surface of the eaves roof panel 2; the eaves keel 18 is arranged On the outside of the cornice insulation layer 17; the keel connection assembly 19 has a group, which is buried in the cornice insulation layer 17 at intervals, and respectively connects the cornice keel 18 with the outer wall body 3 and the roof panel 2; On the outside of cornice keel 18.

In this embodiment, the ridge structure 5 includes a ridge tile 5.1, a ridge tile lying pad 5.2 and a top decorative cover 5.3; the ridge tile 5.1 is covered on the roof panels 2 on both sides of the ridge along the longitudinal length; The ridge tile lying slurry 5.2 fills the gap between the ridge tile 5.1 and the roof panels 2 on both sides of the ridge; the top decorative cover 5.3 covers the top of the ridge tile 5.1.

In this embodiment, the roof structure also includes a solar machine room 24; the solar machine room 24 is arranged on the top floor 1, and the top of the solar machine room 24 exceeds the top of the roof panel 2; the solar machine room 24 includes a side wall 24.1, roof 24.2, machine room insulation layer 24.3, machine room waterproof layer 24.4 and machine room mortar protection layer 24.5; the bottom of the side wall 24.1 is supported on the top floor 1, and the side wall 24.1 is integrally formed with the roof panel 2; the machine room insulation The layer 24.3 is arranged on the outer side of the side wall 24.1 above the roof insulation layer 7 and the top surface of the roof 24.2, and the bottom surface of the machine room insulation layer 24.3 is bonded to the top surface of the roof insulation layer 7; the machine room waterproof layer 24.4 is made of waterproof coiled material Layer 8 extends upwards at the location of the solar machine room 24, and the machine room waterproof layer 24.4 covers the outside of the machine room insulation layer 24.3; the machine room mortar protective layer 24.5 is wiped on the outside of the machine room waterproof layer 24.4; The position of the solar machine room 24 is adhesively connected with the mortar protective layer 24.5 of the machine room.

In this embodiment, the length of the top side of the vertical section of the first groove 15 is not less than 200mm, the height is not less than 110mm, and the length of the bottom side is not less than 300mm; the thickness of the heat preservation block 14.3 is not less than 50mm ; The thickness of the first heat insulation pad 14.1 is not less than 50mm; the thickness of the first connecting plate 14.2 is not less than 20mm.

In this embodiment, the thermal break bridge anchor bolt 21 includes an expansion tube 21.1, a steel nail 21.2 and a bridge break cap 21.3; the expansion tube 21.1 and the bridge break cap 21.3 are made of thermal insulating material, The pipe 21.1 includes a thermal break bridge section 21.1.1, a transition section 21.1.2, a steel nail sleeve section 21.1.3 and an expansion buffer section 21.1.4 arranged in sequence from one end to the other end; the thermal break bridge section 21.1 The end of .1 is provided with an annular pressure plate 21.1.5, and the cross-sectional diameter of the thermal break bridge section 21.1.1 is larger than the cross-sectional diameter of the steel nail sleeve section 21.1.3; the transition section 21.1.2 is a variable-section pipe section, and The end face diameter of the transition section 21.1.2 connected to the heat-breaking bridge section 21.1.1 is adapted to the diameter of the heat-breaking bridge section 21.1.1, and the end of the transition section 21.1.2 connected to the steel nail sleeve section 21.1.3 The diameter of the end surface of the steel nail casing section 21.1.3 adapts; the steel nail 21.2 is inserted into the steel nail casing section 21.1.3, and the enlarged end of the steel nail 21.2 is located in the transition section 21.1.2, the steel nail 21.2 The pointed end of the nail 21.2 is located in the expansion buffer section 21.1.4; the broken bridge blocking cap 21.3 is blocked at the end of the thermally broken bridge section 21.1.1.

In this embodiment, the thermal insulation board unit of the lower thermal insulation layer 7.1 and the vapor barrier layer 6 are bonded by point frames, and the bonding area between the lower thermal insulation layer 7.1 and the vapor barrier layer 6 is not less than 60%; The insulation layer 7.2 and the lower insulation layer 7.1 are bonded in a horizontal strip shape, and the bonding area between the middle insulation layer 7.2 and the lower insulation layer 7.1 is not less than 90%; the upper insulation layer 7.3 and the middle insulation layer 7.2 adopt horizontal strips Form bonding, and the bonding area between the upper insulation layer 7.3 and the middle insulation layer 7.2 is not less than 90%.

In this embodiment, the keel connection assembly 19 includes a second thermal insulation backing plate 19.1, a second connecting plate 19.2, a second anchor bolt 19.3 and a connecting rod 19.4; Two grooves 25; the second heat insulation backing plate 19.1 is embedded in the second groove 25; the second connecting plate 19.2 is attached to the outer surface of the second heat insulation backing plate 19.1, and through the second anchor The bolt 19.3 is connected with the outer wall 3 or the roof panel 2; the connecting rod 19.4 is vertically welded and connected to the second connecting plate 19.2, and the outer end of the connecting rod 19.4 protrudes from the cornice insulation layer 17 and is connected with the cornice keel 18.

In this embodiment, the roof insulation layer 7 is made of extruded polystyrene board.

In this embodiment, the vapor barrier layer 6 is made of 3+3SBS self-adhesive polyester tire type II modified asphalt waterproof membrane blocks lapped and connected; adjacent 3+3SBS self-adhesive polyester tire type II modified The lap width between permanent asphalt waterproofing membrane blocks shall not be less than 20mm.

In this embodiment, the angle between the roof panel 2 and the top floor 1 is 18°.

The construction method of the roof structure of the sloping roof passive house includes the following steps.

Step 1, laying the vapor barrier layer 6 and bonding the vapor barrier layer 6 to the roof panel 2 .

Step 2: Construction of thermal insulation layer fixing components 14: On the roof panels 2 on both sides of the roof ridge, near the positions of the baffles 4 on both sides, a plurality of sets of thermal insulation layer fixing components 14 are arranged at intervals along the longitudinal direction, and each group of thermal insulation layer fixing components 14 are arranged at intervals along the inclination direction of the roof panel 2 .

Step 3, bonding the roof insulation layer 7 and the rock wool insulation layer 13: setting the rock wool insulation layer 13 on the roof panel 2 inside the baffle plate 4; the construction of the roof insulation layer 7 is laid in the direction from the cornice to the ridge, three layers The insulation layer is pasted in staggered seams, and the seams between adjacent insulation board units greater than or equal to 2mm are filled with insulation materials and sealed with polyurethane foam.

Step four, construct the cornice structure.

Step 5, construction of waterproof membrane layer 8: The roof insulation layer 7 that is paved on the same day is constructed on the top of the roof insulation layer 7 on the same day, and the outer edge of the waterproof membrane layer 8 extends to the outer edge of the cornice structure place.

Step 6, constructing the shaped steel keel 23: Correspondingly connecting the shaped steel keel 23 to the upper part of the fixing rod 14.5 of each group of insulation layer fixing components 14 along the inclination direction of the roof panel 2.

Step 7, constructing the roof mortar protection layer 9: constructing the roof mortar protection layer 9 on the top of the waterproof membrane layer 8, and laying the reinforcement mesh 22 on the middle roof mortar protection layer 9 at the same time.

Step 8: Construct the water strips 10, tile hanging strips 11 and roof tiles 12 in sequence until the construction of the roof tiles 12 is completed, so far the construction is completed.

In this embodiment, in step 2, between the middle insulation layer 7.2 and the lower insulation layer 7.1, and between the upper insulation layer 7.3 and the middle insulation layer 7.2 are all bonded with PU glue, and the gap between adjacent insulation board units shall not be greater than 5mm. The parts where the height difference between adjacent insulation board units is greater than 5mm are ground and smoothed.

In this embodiment, when the top floor 1 is provided with a solar machine room 24, the side wall 24.1 and the roof 24.2 of the solar machine room 24 are integrally cast and formed with the roof panel 2; the machine room insulation layer 24.3 and the roof insulation layer 7 are constructed at the same time, The waterproof layer 24.4 is constructed simultaneously with the waterproof membrane layer 8, and the machine room mortar protective layer 24.5 is constructed simultaneously with the roof mortar protective layer 9.

Claims (10)

1. A roof structure of a sloped roof passive house, comprising a top floor (1) and a roof panel (2); the top floor (1) is arranged between the tops of the outer walls (3) of the main structure; the The cross-section of the roof panel (2) is a figure-eight shape, made of reinforced concrete, and the left and right ends of the roof panel (2) respectively exceed the outer sides of the outer walls (3) on both sides; Baffles (4) are arranged at both ends; a roof ridge structure (5) is arranged in the middle of the top of the roof panel (2) along the longitudinal length; it is characterized in that: the roof structure also includes a vapor barrier layer (6), Roof insulation layer (7), waterproof membrane layer (8), roof mortar protection layer (9), water strip (10), hanging tile strip (11), roof tile (12) and cornice structure; The layer (6) is fully spread on the roof panel (2); the roof insulation layer (7) is laid on the vapor barrier layer (6), and the two sides of the roof insulation layer (7) and the baffle (4) Leave a distance; the thickness of the roof insulation layer (7) is not less than 350mm, including the lower insulation layer (7.1), the middle insulation layer (7.2) and the upper insulation layer (7.3); the lower insulation layer (7.1) and Adhesive connection between the vapor barrier layers (6), adhesive connection between the middle insulation layer (7.2) and the lower insulation layer (7.1), and adhesive connection between the upper insulation layer (7.3) and the middle insulation layer (7.2); The lower insulation layer (7.1), the middle insulation layer (7.2) and the upper insulation layer (7.3) are all spliced by multiple rows of insulation board units along the longitudinal staggered joints, and each row of insulation board units is along the slope of the roof panel (2). laying in a continuous direction; the joints of the lower insulation layer (7.1), middle insulation layer (7.2) and upper insulation layer (7.3) in the same row are staggered; the roof insulation layer (7) and the baffle (4 ) is filled with a rock wool insulation layer (13), and the thickness of the rock wool insulation layer (13) is adapted to the thickness of the roof insulation layer (7); on the roof panels (2) on both sides of the ridge, At positions close to the baffles (4) on both sides, multiple sets of thermal insulation layer fixing components (14) are respectively arranged at intervals along the longitudinal direction, and each group of thermal insulation layer fixing components (14) is arranged at intervals along the inclination direction of the roof panel (2) The thermal insulation layer fixing component (14) includes a first thermal insulation backing plate (14.1), a first connecting plate (14.2), a thermal insulation block (14.3), a first anchor bolt (14.4) and a fixing rod (14.5); The bottom surface of the roof insulation layer (7) is provided with a first groove (15) at the position corresponding to the insulation layer fixing component (14), and the vertical section of the first groove (15) is trapezoidal; the insulation layer The steam layer (6) is set close to the groove wall of the first groove (15) at the position of the first groove (15); the first heat insulation backing plate (14.1), the first connecting plate (14.2) and The thermal insulation block (14.3) is set in the first groove (15) sequentially from bottom to top, and on the left and right sides of the first thermal insulation backing plate (14.1) and the thermal insulation block (14.3) and the first groove (15) The crack-resistant mortar layer (16) is filled between the vapor barrier layers (6); the first anchor bolt (14.4) is installed on the insulation block (14.3), the first connecting plate (14.2) and the first heat insulation The backing plate (14.1) is fixedly connected with the roof panel (2); the fixed rod (14.5) is perpendicular to the roof panel (2) and is arranged in the roof insulation layer (7), and the lower end of the fixed rod (14.5) passes through Through the insulation block (14.3), it is fixedly connected with the first connecting plate (14.2), and the upper end of the fixing rod (14.5) is located in the roof mortar protection layer (9); the roof insulation layer (7) is provided with a thermal break bridge at intervals anchor bolt (21), and the lower end of the thermal break bridge anchor bolt (21) is inserted into the roof panel (2) and fixed with the roof panel (2), and the upper end of the thermal break bridge anchor bolt (21) is crimped on the roof insulation layer ( 7) on the upper surface; the waterproof membrane layer (8) is laid on the top of the roof insulation layer (7); the roof mortar protection layer (9) is set on the top of the waterproof membrane layer (8), and A reinforcement mesh (22) is laid in the roof mortar protection layer (9); the smooth water strips (10), hanging tile strips (11) and roof tiles (12) are sequentially arranged on the roof mortar protection layer ( 9) above the top; the roof mortar protection layer (9) is provided with a profiled steel keel (23); the profiled steel keel (23) is correspondingly connected to each group of insulation layer fixing components along the inclination direction of the roof panel (2) The upper part of the fixing bar (14.5) of (14), and the lower part of the shaped steel keel (23) is buried in the roof mortar protection layer (9), and the upper part of the shaped steel keel (23) is located between the water strips (10); the cornice The structure is set on the part where the roof panel (2) exceeds the outer surface of the outer wall (3), including cornice insulation layer (17), cornice keel (18), keel connection assembly (19) and outsourcing aluminum plate (20); The eaves insulation layer (17) is arranged on the outer surface of the outer wall (3), the bottom of the roof panel (2) at the eaves and the end surface of the eaves roof panel (2); the eaves keel (18) is arranged on the eaves insulation layer (17); the keel connection assembly (19) has a group, which is buried in the cornice insulation layer (17) at intervals, and respectively connects the cornice keel (18) with the outer wall (3) and the roof panel (2) ; The outer cladding aluminum plate (20) is set on the outer side of the eaves keel (18). 2. The roof structure of a sloped roof passive house according to claim 1, characterized in that: the ridge structure (5) includes ridge tiles (5.1), ridge tiles (5.2) and top decorative cover (5.3) ; The ridge tiles (5.1) are covered on the roof panels (2) on both sides of the ridge along the longitudinal length; ) in the gap; the top decorative cover (5.3) covers the top of the ridge tile (5.1). 3. The roof structure of a sloped roof passive house according to claim 1, characterized in that: the roof structure also includes a solar machine room (24); the solar machine room (24) is arranged on the top floor (1), And the top of the solar machine room (24) exceeds the top of the roof panel (2); the solar machine room (24) includes a side wall (24.1), a roof (24.2), a machine room insulation layer (24.3), and a machine room waterproof layer (24.4) and machine room mortar protection layer (24.5); the bottom of the side wall (24.1) is supported on the top floor (1), and the side wall (24.1) is integrally formed with the roof panel (2); the machine room insulation layer (24.3) The outer side of the side wall (24.1) and the top surface of the roof (24.2) are arranged above the roof insulation layer (7), and the bottom surface of the machine room insulation layer (24.3) is bonded to the top surface of the roof insulation layer (7); The machine room waterproof layer (24.4) is formed by the waterproof membrane layer (8) extending upwards at the location of the solar machine room (24), and the machine room waterproof layer (24.4) covers the outside of the machine room insulation layer (24.3); the machine room mortar protection The layer (24.5) is applied on the outside of the waterproof layer (24.4) of the machine room; the roof tiles (12) are bonded and connected with the mortar protection layer (24.5) of the machine room at the position of the solar machine room (24). 4. The roof structure of a sloped roof passive house according to claim 1, characterized in that: the length of the top side of the vertical section of the first groove (15) is not less than 200mm, the height is not less than 110mm, and the bottom The side length is not less than 300mm; the thickness of the insulation block (14.3) is not less than 50mm; the thickness of the first heat insulation pad (14.1) is not less than 50mm; the thickness of the first connecting plate (14.2) Not less than 20mm. 5. The roof structure of a sloped roof passive house according to claim 1, characterized in that: the thermal break bridge anchor bolt (21) includes an expansion tube (21.1), a steel nail (21.2) and a bridge break cap (21.3); the expansion tube (21.1) and the bridge-breaking cap (21.3) are made of thermal insulation material, and the expansion tube (21.1) includes a heat-breaking bridge section (21.1. 1), transition section (21.1.2), steel nail casing section (21.1.3) and expansion buffer section (21.1.4); the end of the thermal break bridge section (21.1.1) is provided with an annular pressure plate ( 21.1.5), and the cross-sectional diameter of the thermal break bridge section (21.1.1) is larger than the cross-sectional diameter of the steel nail casing section (21.1.3); the transition section (21.1.2) is a variable section pipe section, and the transition section (21.1.2) The end face diameter of the end connected to the thermal break bridge section (21.1.1) is adapted to the diameter of the thermal break bridge section (21.1.1), and the transition section (21.1.2) and the steel nail casing section (21.1.3) The end face diameter of the connected end is adapted to the diameter of the steel nail sleeve section (21.1.3); the steel nail (21.2) is inserted into the steel nail sleeve section (21.1.3), and the steel nail The enlarged end of (21.2) is located in the transition section (21.1.2), and the pointed end of the steel nail (21.2) is located in the expansion buffer section (21.1.4); the broken bridge sealing cap (21.3) seals At the end of the thermal break bridge section (21.1.1). 6. The roof structure of a passive house with a sloping roof according to claim 1, characterized in that: the thermal insulation board unit of the lower thermal insulation layer (7.1) and the vapor barrier layer (6) are bonded by point frames, and the lower The bonding area between the insulation layer (7.1) and the vapor barrier layer (6) shall not be less than 60%; the middle insulation layer (7.2) and the lower insulation layer (7.1) shall be bonded in a horizontal strip, and the middle insulation layer ( The bonding area between 7.2) and the lower insulation layer (7.1) is not less than 90%; the upper insulation layer (7.3) and the middle insulation layer (7.2) are bonded in horizontal strips, and the upper insulation layer (7.3) The bonding area between layers (7.2) shall not be less than 90%. 7. The roof structure of a sloped roof passive house according to claim 1, characterized in that: the keel connection assembly (19) includes a second heat insulation backing plate (19.1), a second connecting plate (19.2), a second Two anchor bolts (19.3) and connecting rods (19.4); a second groove (25) is opened on the inner side of the eaves insulation layer (17); the second heat insulation pad (19.1) is embedded in the second groove (25); the second connecting plate (19.2) is pasted on the outer surface of the second heat insulation pad (19.1), and connected to the outer wall (3) or The roof panel (2) is connected; the connecting rod (19.4) is vertically welded and connected to the second connecting plate (19.2), and the outer end of the connecting rod (19.4) protrudes from the cornice insulation layer (17), and the cornice keel (18 )connect. 8. a construction method of the roof structure of the sloped roof passive house described in any one of claims 1-7, is characterized in that, comprises steps as follows: Step 1, laying the vapor barrier layer (6), and bonding the vapor barrier layer (6) to the roof panel (2); Step 2, construction of thermal insulation layer fixing components (14): On the roof panels (2) on both sides of the roof ridge, near the baffles (4) on both sides, set multiple groups of thermal insulation layer fixing components (14) at longitudinal intervals , and each set of insulation layer fixing components (14) is arranged at intervals along the inclination direction of the roof panel (2); Step 3, bonding the roof insulation layer (7) and the rock wool insulation layer (13): set the rock wool insulation layer (13) on the roof panel (2) inside the baffle (4); the roof insulation layer (7) The construction is laid according to the direction from the cornice to the roof ridge, and the three layers of insulation are pasted in staggered joints. The joints between adjacent insulation board units greater than or equal to 2mm are filled with insulation materials and sealed with polyurethane foam; Step 4, construction cornice structure; Step 5, Construction of the waterproof membrane layer (8): The roof insulation layer (7) that is paved on the same day is constructed on the top of the roof insulation layer (7) on the same day. The waterproof membrane layer (8), the waterproof membrane layer (8) the outer edge extends to the outer edge of the cornice structure; Step 6, constructing the shaped steel keel (23): connect the shaped steel keel (23) to the upper part of the fixing rod (14.5) of each set of insulation layer fixing components (14) along the inclination direction of the roof panel (2); Step 7, constructing the roof mortar protection layer (9): constructing the roof mortar protection layer (9) on the top of the waterproof membrane layer (8), and laying the reinforcement mesh (22) on the middle roof mortar protection layer (9) at the same time; Step 8: Construct the water strips (10), the roof tiles (11) and the roof tiles (12) in sequence until the roof tiles (12) are completed, and the construction is completed. 9. The construction method of the roof structure of a sloped roof passive house according to claim 8, characterized in that: in step 2, between the middle insulation layer (7.2) and the lower insulation layer (7.1), the upper insulation layer (7.3) and the lower insulation layer (7.1) The intermediate insulation layers (7.2) are all bonded with PU glue, the gap between adjacent insulation board units shall not be greater than 5mm, and the parts with a height difference greater than 5mm between adjacent insulation board units shall be ground and smoothed. 10. The construction method of the roof structure of a sloped roof passive house according to claim 8, characterized in that: when the top floor (1) is provided with a solar machine room (24), the side wall (24.1) of the solar machine room (24) ) and the roof (24.2) and the roof panel (2) are integrally poured and formed; the machine room insulation layer (24.3) is constructed simultaneously with the roof insulation layer (7), and the machine room waterproof layer (24.4) is constructed simultaneously with the waterproof membrane layer (8) , The machine room mortar protection layer (24.5) and the roof mortar protection layer (9) are constructed simultaneously.

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