JPH09170317A - System roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a ventilation flue superior in thermal insulation and dewing prevention performance in the inside of a roof. SOLUTION: A thermal insulation plate 2 is provided on front and rear roof bed parts 1 in a roof in the direction of a common rafter, and higher metal-made common rafter 3 than the thermal insulation plate 2 is disposed. A ventilating hole 4 is provided in left and right side parts projected more upward than the thermal insulation plates of the metal-made common rafters 3 provided left and right. A sheathing roof board 5 is provided on a ceiling plate of the metal-made common rafter 3 is provided in the direction of a ridge beam, and a ventilating gap 6 crosswise communicating through the ventilating hole 4 between the vertically provided thermal insulation plate 2 and the traversely provided sheathing roof board 5 is provided. Furthermore, a metal-made roof plate 7 is provided on the roof 5 in the direction of the common rafter, jointing is provided by rolling in left and right edges of the provided metal-made roof plate 7 and providing a joint part 8. A ridge accessory 10 providing an upper ventilating flue 9 communicating with the ridge part of the roof from the ventilating gap 6 is provided. An eaves accessory forming a lower ventilating flue communicating with the ventilating gap in the eaves part of the roof is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system roof structure which is excellent in heat insulation and has a ventilation passage formed inside the roof to prevent dew condensation.

[0002]

2. Description of the Related Art Conventionally, a roof structure has been known in which a heat insulating material is arranged inside a metal roof plate to improve the heat insulating effect.

In the present invention, by adding a ventilation structure to the roof having such a heat insulating structure, the heat insulating effect can be further improved, and further it can be surely prevented that the dew condensation is caused by the ventilation effect. The system roof structure of the present invention was completed in which ventilation paths were formed vertically and horizontally when combining a roof plate made of metal, a base plate, a metal rafter and a heat insulating material.

[0004]

The gist of the present invention will be described with reference to the accompanying drawings.

Insulating plates 2 are juxtaposed in the rafter direction on the front and rear roof base portions 1 of the roof a, and a metal rafter 3 taller than the insulating plates 2 is arranged between the juxtaposed insulating plates 2. Ventilation holes 4 are provided on the left and right side surfaces of the metal rafters 3 which are juxtaposed above the heat insulating plates 2 of the metal rafters 3 arranged side by side, and the field boards 5 are arranged in the purlin direction on the top plate 3'of the metal rafters 3. A ventilation gap 6 communicating vertically and horizontally through the ventilation holes 4 is provided between a heat insulating plate 2 installed vertically and a field plate 5 horizontally installed, and a metal roof is provided on the field plate 5. The boards 7 are arranged side by side in the rafter direction, and the left and right edges of the metal roof boards 7 arranged side by side are rolled up to form a joint 8 so that the roof 7 a and the ridge b are joined together.
Building decoration with an upper ventilation passage 9 communicating with the ventilation gap 6
The present invention relates to a system roof structure characterized in that a roof decoration 10 is provided and a roof decoration 12 having a lower ventilation passage 11 communicating with the ventilation gap 6 is provided at the eaves c of the roof a.

Further, fastening sleeve plates 3 "protruding from the lower right and left of the metal rafter 3 are fastened to the roof base portion 1 by the fastening bolts 13, and rafters are placed on the top plate 3'of the metal rafter 3. 3. The system roof structure according to claim 1, wherein a sludge space 23 is interposed between the field boards 5 arranged in the direction.

[0007] Further, a fastening piece 15 "projecting from the lower portion of the metal building base plate 15 is fastened to the roof plate 3'on the building side of the metal rafter 3 arranged on the roof a. A ceiling ventilation hole 16 is provided in the top plate portion 15 ′ of the base plate 15, and a ridge decoration plate 17 is provided on the metal ridge base plate 15 with a space therebetween to form an upper ventilation passage 9, The present invention relates to a system roof structure characterized in that ventilation openings 18 under the ridge are formed in front and rear lower portions of the ridge decoration 10.

Further, the upper part of the front plate 19 of the eaves decoration 12 is fixedly hung down on the eaves end 5'of the base plate 5 arranged on the lower side of the metal roof plate 7 arranged on the roof a to make the lower ventilation passage. The system roof structure is characterized in that the eaves ventilation opening 22 is formed in the closing plate 21 which forms 11 and closes the gap between the lower end of the front plate 19 and the wall surface 20 of the building wall portion d. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be briefly described with reference to the drawings, which are examples of embodiments, showing the functions and effects.

The invention according to claim 1 The metal rafters 3 are taller than the heat insulating plates 2 arranged between the metal rafters 3 arranged in parallel in the rafter direction. Since the holes 4 are provided and the base plate 5 is arranged on the top plate 3 ′ of the metal rafter 3, the ventilation gap between the heat insulating plate 2 and the base plate 5 is provided by the ventilation holes 4 of the metal rafter 3 on the left and right sides. 6 is formed, the upper ventilation passage 9 communicating with the ventilation gap 6 is provided in the ridge decoration 10, and the lower ventilation passage 11 also communicating with the ventilation gap 6 is provided as the eaves decoration 12, so that air flows inside the roof and is insulated. Prevents dew condensation in combination with the action. -Invention of Claim 2 A fastening bolt 13 is driven into the fastening sleeve plate 3 "of the metal rafter 3 and tightened with a nut to securely fasten the metal rafter 3 to the roof base 1, and the ground plate 5 Since the drainage gap 23 is disposed between the rafters in the rafter direction, the height of the ventilation gap 6 at that portion is increased, the air flow in the ventilation gap 6 moves vertically and horizontally, and good prevention of dew condensation is achieved.

The invention according to claim 3 The upper ventilation passage 9 is provided with a ridge decoration plate 17 in a fitted state with a gap provided on a metal ridge base plate 15 having a ceiling ventilation hole 16 in a top plate portion 15 '. Since the air is formed, the air flowing through the upper ventilation passage 9 is introduced or discharged through the ventilation opening 18 under the ridge, which improves the circulation of the air and improves the dew condensation prevention effect.

Invention of Claim 4 Since the lower ventilation passage 11 is formed between the front plate 19 of the eaves decoration 12 hung on the eaves end 5'of the base plate 5 and the wall surface 20 of the building wall d, the lower ventilation is provided. The air flowing through the passage 11 is introduced or discharged through the under-eave ventilation opening 22 provided in the closing plate 21, so that the air circulation is improved and the dew condensation prevention effect is improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show a preferred embodiment of the present invention, in which heat insulating plates 2 are laid in parallel in the rafter direction on the front and rear roof base parts 1 of the roof a, and between the heat insulating plates 2 arranged in parallel. Heat insulating plate 2
A metal rafter 3 which is taller than the above is provided, and ventilation holes 4 are provided on the left and right side surfaces of the metal rafter 3 which are juxtaposed to the left and right of the metal rafter 3 so as to project above the heat insulating plate 2. Board 3 '
Ventilation gaps 6 are provided between the heat insulating plates 2 which are vertically arranged side by side in the purlin direction and the field plates 5 which are horizontally arranged above each other through the ventilation holes 4 so as to communicate vertically and horizontally. , The metal roof boards 7 are juxtaposed on the base board 5 in the rafter direction, and the left and right edges of the juxtaposed metal roof boards 7 are rolled up to form a joint 8 so that they are continuously joined. , A ridge decoration 10 having an upper ventilation passage 9 communicating with the ventilation gap 6 in the ridge b of the roof a, and a lower ventilation passage communicating with the ventilation gap 6 in the eaves c of the roof a
The present invention relates to a system roof structure provided with an eaves decoration 12 forming 11.

The illustrated metal rafter 3 is formed in a hat shape in cross section, and a plurality of long window-shaped ventilation holes 4 are continuously provided on the inclined side surface portion at appropriate intervals to improve ventilation.

The heat insulating plate 2 may be made of a hard material such as a foamed plastic plate, or may be a felt-like heat insulating material having a reflective sheet on its surface. Although the method of laying on the roof base 1 is shown by inserting the edge into the pressing frame piece 14 and fixing it, nailing may be carried out for a hard plate material.

It is desirable to interpose the heat insulating plate 2 also on the metal rafters 3 because the heat insulating effect is improved.

To give an example of the size of the base plate 5, the length in the rafter direction is 90 cm, the width is 180 cm, and the metal rafter 3
Is about 35cm to 100cm, and the height is 5c.
m, width is 6 cm, and when the thickness of the heat insulating plate 2 is set to 3.5 cm, a ventilation gap 6 having a height difference of 1.5 cm is formed,
Providing such an interval improves the flow of air.

The splicing portion 8 is shown in the case of adopting the two-winding winding style which has been frequently used in the past, but any splicing connection structure such as a roof tile style may be adopted.

Further, fastening sleeve plates 3 "projecting from the lower left and right sides of the metal rafter 3 are fastened to the roof base portion 1 by the fastening bolts 13, and rafters are placed on the top plate 3'of the metal rafter 3. The present invention relates to a system roof structure in which a drainage gap 23 is interposed between the field boards 5 arranged in the direction.

The fastening bolt 13 has a retaining structure in which the lower portion expands when the roof base 1 is made of concrete, and is fastened with a nut 24. In addition, when the base plate 32 is laid on the rafter 31 for the roof base 1, the tapping screws 13 'as shown in FIG. 3 are used for fastening. In the figure, reference numeral 28 is a waterproof sheet, 29 is a waterproof material, and 30 is a waterproof layer.

[0021] Further, a metal plate 3'on the ridge side of the metal rafter 3 disposed on the roof a is fixed with a fastening piece 15 "projecting from the lower part of the metal ridge base plate 15, and this metal ridge is fixed. A ceiling ventilation hole 16 is provided in the top plate portion 15 ′ of the base plate 15, and a ridge decoration plate 17 is provided on the metal ridge base plate 15 with a space therebetween to form an upper ventilation passage 9, The present invention relates to a system roof structure in which under-floor ventilation openings 18 are formed in the lower part of the front and rear of the ridge decoration 10.

The fastening piece 15 "of the metal base plate 15 is fastened to the top plate 3'on the side of the ridge with screws 25.

The ridge side of the metal roof plate 7 is a metal ridge base plate 15
Stand up alongside the side plate of the, and the rainwater infiltration prevention plate on the outside
Arrange 26. In the figure, reference numeral 27 is a spacing plate, and 28 'is a waterproof sheet.

It is desirable to provide the air in the attic inside the metal building base plate 15 so that the air flows upward.

Further, the upper part of the front plate 19 of the eaves decoration 12 is fixedly hung down to the eaves end 5'of the base plate 5 arranged on the lower side of the metal roof plate 7 arranged on the roof a, and the lower ventilation passage is formed. The present invention relates to a system roof structure in which an eaves ventilation opening 22 is formed in a closing plate 21 that forms a space 11 between the lower end of the front plate 19 and the wall surface 20 of the building wall portion d.

The closing plate 21 is fixed to the wall surface by the fixing bolts 13, and the front lower edge is wound around the lower edge of the front plate 19 to be fixed.

The eaves reinforcing plate 33 is screwed to the eaves of the roof base part 1 on the base plate 5, the tip of the eaves reinforcing plate 33 is bent downward, and the metal roof laid on the eaves reinforcing plate 33. The edge of the plate 7 and the bent piece of the eaves reinforcing plate 33 are wound and fastened to prevent the metal roof plate 7 from being turned over by a strong wind.

The upper part of the front plate 19 may be overlapped with the lower edge of the metal roof plate 7 to be wound and fixed. The present invention can be applied to various roof structures such as a gable style and a parquet style.

[0029]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, in addition to exhibiting an excellent heat insulating effect, air circulates inside the roof and is guided and discharged from the ridge decoration or eaves decoration. An excellent system roof structure that does not cause dew condensation due to the flow action and the heat insulation action is provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of a ridge.

FIG. 2 is a sectional view of an eaves portion.

FIG. 3 is a cross-sectional view of a metal rafter.

[Explanation of symbols]

 a roof b ridge part c eaves part d building wall part 1 roof base part 2 heat insulating plate 3 metal rafter 3'top plate 3 "fastening sleeve plate 4 ventilation holes 5 field plate 5 'eaves end 6 ventilation gap 7 metal roof Plate 8 Entrainment joint 9 Upper ventilation duct 10 Building decoration 11 Lower ventilation duct 12 Eaves decoration 13 Fixing bolt 15 Metal building base plate 15 'Top plate 15 "Fastening piece 16 Ceiling ventilation hole 17 Building decoration plate 18 Building lower part Ventilation opening 18 19 Front plate 20 Wall surface 21 Closure plate 22 Eaves under ventilation opening 23 Slat gap

[Procedure amendment]

[Submission date] December 22, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

The board 5 is often made of wood board or cement composite board. To give an example of its size, the length in the rafter direction is 90 cm, the width is 180 cm, and the metal rafter 3 is used.
Is about 35cm to 100cm, and the height is 5c.
m, width is 6 cm, and when the thickness of the heat insulating plate 2 is set to 3.5 cm, a ventilation gap 6 having a height difference of 1.5 cm is formed,
Providing such an interval improves the flow of air.

Claims (4)

[Claims] 1. A heat insulating plate is laid side by side in the rafter direction on the front and rear roof bases of the roof, and a metal rafter taller than the heat insulating plate is arranged between the heat insulating plates arranged side by side. Ventilation holes are provided on the left and right side parts protruding above the heat insulating plate of the metal rafters, and the ground boards are arranged side by side in the purlin direction on the top plate of the metal rafters and the heat insulating plates are arranged side by side. A ventilation gap that communicates vertically and horizontally through the ventilation holes is provided between the ground plate and the roof plate made of metal, and the roof plates made of metal are arranged side by side in the rafter direction on the ground plate. The left and right edges of each of the roofs are spliced together to form a joint, and the roof ridge is provided with a ridge decoration that has an upper ventilation passage that communicates with the ventilation gap, and the roof eaves have a ventilation gap. A system roof structure characterized by the eaves decoration that forms the lower ventilation passage that communicates. 2. A fastening sleeve plate projecting from the lower left and right of a metal rafter is fixed to the roof base by the fastening bolts, and between the field boards arranged on the roof of the metal rafter in the rafter direction. The system roof structure according to claim 1, wherein a drainage gap is provided. 3. A fastening piece protruding from a lower portion of a metal ridge base plate is fixed to a roof plate of a metal rafter ridge side provided on a roof,
A ceiling ventilation hole is provided on the top plate of the metal building base plate, and a ridge decoration plate is fitted on the metal building base plate with a space between them to form an upper ventilation passage to form an upper ventilation passage. The system roof structure is characterized by the formation of ventilation openings under the ridge in the lower front and back. 4. A lower ventilation passage is formed by fastening and hanging an upper part of a front plate of an eaves decoration to an eave end portion of a base plate arranged below a metal roof plate arranged on a roof. A system roof structure characterized by forming a ventilation opening under the eaves on a closing plate that closes the gap between the lower end of the building and the wall surface of the building wall.