WO2022137382A1 - 外壁体内の通気構造 - Google Patents
外壁体内の通気構造 Download PDFInfo
- Publication number
- WO2022137382A1 WO2022137382A1 PCT/JP2020/048135 JP2020048135W WO2022137382A1 WO 2022137382 A1 WO2022137382 A1 WO 2022137382A1 JP 2020048135 W JP2020048135 W JP 2020048135W WO 2022137382 A1 WO2022137382 A1 WO 2022137382A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wood
- wall
- ventilation
- base
- plywood
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 90
- 239000002023 wood Substances 0.000 claims abstract description 143
- 239000011120 plywood Substances 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims description 235
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 description 9
- 238000009833 condensation Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/70—Drying or keeping dry, e.g. by air vents
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/70—Drying or keeping dry, e.g. by air vents
- E04B1/7069—Drying or keeping dry, e.g. by air vents by ventilating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/70—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/10—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/007—Outer coverings for walls with ventilating means
Definitions
- the present invention relates to a ventilation structure inside the outer wall.
- a ventilation layer extending in the vertical direction is secured on the indoor side of the outer wall material to be the finishing material.
- the moist air in the ventilation layer flows from the bottom to the top by natural ventilation and is discharged to the outdoor space through the gap between the roof material and the outer wall material. Therefore, moisture does not accumulate inside the outer wall, and internal dew condensation inside the outer wall can be effectively prevented.
- the present invention has been made in view of the above-mentioned problems, and provides a ventilation structure inside an outer wall capable of more effectively discharging moisture inside the outer wall in a building having a wooden structure. The purpose.
- the ventilation structure inside the first outer wall of the present invention is erected on a pair of wooden pillars erected at intervals from each other and the pair of wooden pillars, and a first ventilation groove is provided on the outdoor side surface.
- a wooden beam material to be provided a wooden base material erected at the lower end of the pair of wooden pillar materials and having a second ventilation groove on the outdoor side surface, the pair of wooden pillar materials, the wooden beam material, and the wooden material.
- a base plywood fixed to each outdoor side surface of the base material and serving as a base for the outer wall decorative material is provided, and the first ventilation groove and the second ventilation groove are spaced apart in the horizontal direction, respectively. It is characterized by being formed in multiples.
- the second ventilation structure inside the outer wall of the present invention is characterized in that the base plywood separates the outdoor side surface from the indoor side surface of the outer wall decorative material.
- the ventilation structure inside the third outer wall of the present invention includes an intermediate pillar material standing between the pair of wood pillar materials and a reinforcing plywood installed indoors from the base plywood and fixed to the intermediate pillar material.
- the reinforcing plywood is characterized in that the upper end is installed away from the lower end surface of the wood beam material and the lower end is installed away from the upper end surface of the wood base material. ..
- the wood beam material is said to have a plurality of first ventilation grooves extending from the upper end to the lower end on the outdoor side surface at intervals in the horizontal direction, and the wood base material.
- the material is said to have a plurality of second ventilation grooves extending from the upper end to the lower end on the outdoor side surface at intervals in the horizontal direction. Therefore, the air inside the outer wall, which exists on the indoor side of the base plywood, flows from the bottom to the top through each ventilation groove by natural ventilation, which prevents the stagnation of moisture and prevents the stagnation of moisture, and the wood beam material and other walls due to internal dew condensation. Corrosion of members can be effectively prevented.
- the ventilation layer is formed between the outer wall decorative material and the base plywood. Is formed. Therefore, the air inside the outer wall that exists on the outdoor side of the base plywood flows from the bottom to the top through the ventilation layer by natural ventilation, which prevents the stagnation of moisture and prevents the base plywood and the outer wall decorative material due to internal dew condensation. Corrosion can also be effectively prevented.
- the reinforcing plywood installed on the indoor side of the base plywood and fixed to the intermediate column material is installed so that the upper end is separated from the lower end surface of the wood beam material.
- the lower end is installed away from the upper end surface of the wood base material. Therefore, it is possible to secure a ventilation path for air existing on the indoor side of the base plywood inside the outer wall, and while constructing a high-strength outer wall, it is possible to effectively prevent the occurrence of internal dew condensation inside the outer wall. Can be done.
- FIG. 1 is a cross-sectional view taken along the line AA of FIG.
- FIG. 1 is a cross-sectional view taken along the line BB.
- FIG. 3 is an enlarged sectional view taken along the line C of FIG.
- FIG. 2 is an enlarged sectional view taken along line D of FIG.
- FIG. 2 is an enlarged sectional view taken along line E of FIG.
- the perspective view which shows the state of fixing the 1st base plywood.
- Sectional drawing which shows the ventilation structure around a balcony.
- the horizontal sectional view which shows the ventilation structure in the 2nd outer wall.
- the front view which shows the state which installed the vertical base material and the horizontal base material.
- Front view showing the state where the reinforcing plywood is installed.
- the cross-sectional view which shows around the column base part of the 2nd outer wall.
- the perspective view which shows the state of fixing the reinforcing plywood and the first base plywood.
- the ventilation structure inside the outer wall of the present application is for preventing internal dew condensation inside the outer wall, and is mainly used for a detached house having a wooden structure, but may be used for other buildings as long as it has a wooden structure. ..
- the "base plywood” in the present invention corresponds to the "first base plywood 61" in the present embodiment.
- the ventilation structure 1 inside the first outer wall shown in FIGS. 1 and 2 is a structure for ensuring ventilation inside the first outer wall W1 which is the first floor outer wall of a detached house.
- the ventilation structure 1 in the outer wall consists of a pair of wooden pillars 2 erected at intervals from each other and a wooden beam 3 erected on the pair of wooden pillars 2.
- the wood base material 4 erected at the lower end 2a of the pair of wood pillars 2, and fixed to the outdoor side of the pair of wood pillars 2, the wood beam 3, and the wood base 4, and the outer wall.
- a first base plywood 61 which is a base of the decorative material 5, is provided.
- the wood pillar material 2 shown in FIGS. 1, 3 and 4 is a structural material erected on the building foundation 7, and is fixed to a prismatic vertical member 21 extending in the vertical direction and a lower end portion of the vertical member 21. It is composed of a pillar base material 22 to be formed.
- the cross-sectional dimension of the vertical member 21 is determined by the scale of the detached house, but both the found width and the depth length are formed in the range of about 100 mm to 150 mm.
- the column base material 22 is located above the first plate 22a placed on the building foundation 7 and the first plate 22a, and is in contact with the lower end surface 21a of the vertical material 21.
- the first plate 22a is fixed to the building foundation 7 by anchor bolts 8, and the third plate 22c is fitted into an insertion groove (not shown) extending upward from the lower end surface 21a of the vertical member 21 and the outdoor side of the vertical member 21. It is fixed to the vertical member 21 by driving the nail 11 from the surface 21c (see FIG. 1).
- the height H1 from the upper end surface 7a of the building foundation 7 to the upper end surface 22e of the second plate 22b is about 40 mm to 60 mm.
- the distance between the pair of wood pillars 2 is determined by the position where they are placed and the shape of the detached house, but the distance between the centers of the pair of wood pillars 2 is adjusted to be within the range of about 500 mm to 2000 mm. Will be done.
- the studs 9 are erected between the pair of lumber pillars 2 at predetermined intervals as shown in FIG. In this embodiment, a case where the distance between the centers of the pair of wood pillars 2 is 2000 mm will be described.
- the wood beam material 3 shown in FIGS. 3 and 5 is a structural material extending in the horizontal direction, and the depth length is substantially the same as the depth length of the wood pillar material 2. Further, the wood beam material 3 has a first fitting groove 31 extending from the outdoor side edge to the indoor side edge on the lower end surface 3a, and a first ventilation extending from the upper end 3c to the lower end 3d on the outdoor side surface 3b. It has a groove 32.
- the first fitting groove 31 is a groove for fitting the upper end portion of the stud member 9 described above, and is formed at a position where the stud member 9 is installed. Further, a plurality of first ventilation grooves 32 are formed at intervals of about 500 mm in the horizontal direction, and are formed at positions avoiding the first fitting groove 31.
- the first fitting groove 31 and the first ventilation groove 32 each have a groove depth of about 10 mm to 15 mm, and the first fitting groove 31 is substantially the same as the found width of the stud member 9 into which the width is fitted.
- the first ventilation groove 32 is formed in a dimension, and the width is formed in the range of about 30 mm to 35 mm.
- the wood base material 4 shown in FIGS. 3, 4, and 6 is a horizontal member for fixing the lower end portion of the interstitial pillar material 9 and the lower end portion of the first base plywood 61, and is a pair of wood pillar materials having a length. The length between the two is substantially the same, and the depth length is substantially the same as the depth length of the wood pillar material 2. Further, the wood base material 4 has a second fitting groove 41 extending from the edge on the outdoor side to the edge on the indoor side on the upper end surface 4a, and a second ventilation extending from the upper end 4c to the lower end 4d on the surface 4b on the outdoor side. It has a groove 42.
- the second fitting groove 41 is a groove for fitting the lower end portion of the stud member 9, and is formed at a position where the stud member 9 is installed like the first fitting groove 31. Further, a plurality of second ventilation grooves 42 are formed at intervals in the horizontal direction, like the first ventilation groove 32, and are formed at positions avoiding the second fitting groove 41.
- the second fitting groove 41 has the same groove depth and width as the first fitting groove 31, and the second ventilation groove 42 has a groove depth, width, and adjacent second fitting grooves. The distance from the ventilation groove 42 is the same as that of the first ventilation groove 32.
- the first base plywood 61 shown in FIGS. 2 and 7 is a plate material installed on the outdoor side of the wood pillar material 2, the wood beam material 3, and the wood base material 4.
- the first base plywood 61 is made of structural plywood, particle board, or the like having excellent shearing performance, and is formed in a range of about 9 to 15 mm in thickness and about 900 to 1000 mm in width.
- the height of the first base plywood 61 is adjusted by the height of the first floor of the detached house, and is formed in the range of about 2440 mm to 3030 mm.
- the stud material 9 shown in FIGS. 3 and 7 is a vertical member installed to maintain the strength of the wall, and a plurality of stud members 9 are installed at intervals in the horizontal direction, and like the wood base material 4, the first base material is nailed.
- the plywood 61 is fixed.
- the stud material 9 has a found width of about 40 mm to 50 mm, and has substantially the same depth length as the wood pillar material 2. Further, the distance between the adjacent stud members 9 is about 450 mm to 500 mm.
- the construction method of the ventilation structure 1 inside the first outer wall will be described.
- the first plate 22a of the wooden pillar material 2 is inserted into the anchor bolt 8 protruding upward from the upper end surface 7a of the building foundation 7 and tightened with the nut 81, and the pillar material 2 is fastened to the building foundation 7.
- the wood beam material 3 is erected on the pair of wood pillar materials 2, and the pair of wood pillar materials 2 is erected with a predetermined joining metal fitting. And the wood beam material 3 are connected.
- a lumber base material 4 is erected at the lower end between the pair of lumber pillars 2.
- the wood base material 4 is installed so that the lower end surface 4e is substantially the same height as the lower end surface 21a of the vertical material 21 with the second ventilation groove 42 facing the outdoor side.
- a spacer (not shown) having the same height as the height H1 from the upper end surface 7a of the building foundation 7 to the upper end surface 22e of the second plate 22b is placed below the wooden base material 4. If it is placed on the wood base material 4, the wood base material 4 can be easily installed at a predetermined height. As shown in FIG.
- the wood base material 4 installed at a predetermined position has an L-shape at the inside corner formed by the upper end surface 4a of the wood base material 4 and the side surface 21b on the wood base material 4 side of the vertical material 21.
- the corners of the shaped metal fittings 10 are brought into contact with each other, and nails 11 are driven from above or from the side of the L-shaped metal fittings 10 to be connected and fixed to the wood pillar material 2.
- the upper end portion of the stud material 9 is fitted into the first fitting groove 31 of the wood beam material 3, and the lower end portion of the stud material 9 is fitted into the second fitting groove 41 of the wood base material 4. Insert. Then, a nail (not shown) is driven diagonally upward from the upper end side of the stud material 9, and a nail (not shown) is driven diagonally downward from the lower end side of the stud material 9 to make the stud material 9 woody. It is fixed to the beam material 3 and the wood base material 4.
- the draining material 12 extending in the longitudinal direction of the wood base material 4 is fixed to the lower end of the outdoor side surface 4b of the wood base material 4 with screws. As shown in the figure, the drainer 12 projects outward so that the edge on the outdoor side is separated from the building foundation 7, and rainwater traveling through the outer wall decorative material 5 can flow downward.
- the first base plywood 61 is fixed to the outdoor side of the pair of wood pillar material 2, the wood beam material 3, and the wood base material 4.
- the peripheral portion and the substantially central portion in the width direction are nailed to the outdoor side surface 21c of the vertical material 21, the outdoor side surface 3b of the wood beam material 3, and the wood base. It is fixed to the outdoor side surface 4b of the lumber 4 and the outdoor side surface 9a of the stud material 9.
- the materials and shapes of the wood pillar material 2, the wood beam material 3, the wood base material 4, and the stud material 9 on the indoor side are the same as those of the first base plywood 61.
- the second base plywood 62 is fixed.
- the plate-shaped outer wall decorative material 5 is fixed to the outdoor side of the first base plywood 61 with a special metal fitting (not shown) to form the first outer wall W1 to complete the ventilation structure 1 inside the first outer wall. ..
- the outdoor side surface 61a is separated from the indoor side surface 5a of the outer wall decorative material 5, and is between the outer wall decorative material 5.
- a gap S is formed in. Further, since the outer wall decorative material 5 is installed so that the lower end 5b is separated from the draining material 12, outdoor air can enter the gap S from the lower end 5b of the outer wall decorative material 5.
- the air around the lower end of the first outer wall W1 formed in this way passes through the inside of the first outer wall W1 due to the updraft and moves upward. That is, the air existing below the drainer 12 shown in FIG. 6 is the second ventilation groove 42 of the wood base material 4 from between the drainer 12 and the building foundation 7, as shown by the arrow X1 in FIG. , And the first ventilation groove 32 of the wood beam material 3 in order, and moves upward. Further, as shown by the arrows Y in FIGS. 5 and 6, the air around the lower end portion of the decorative outer wall material 5 passes through the gap S from between the lower end 5b of the outer wall decorative material 5 and the draining material 12, and is upward. Move to.
- the air thus moved upward can be discharged to the outside from the eaves back ventilation port D1 shown in FIG. 8, the cabin back ventilation port (not shown), and the like.
- the air in the eaves back space S2 can be removed by providing the ventilation notch Tb in the floor base plywood Ta located at the peripheral edge of the balcony T. , Passing through the waist wall Wa standing on the outer periphery of the balcony T, and discharged to the outside through the gap between the Kasagi Wb installed at the upper end of the waist wall Wa and the waist wall decorative material Wc of the waist wall Wa. (See arrow Z in FIG. 8).
- the ventilation structure 1 in the outer wall of the present application does not form a ventilation layer only between the first base plywood 61 and the outer wall decorative material 5, but rather forms the first base plywood 61 and the second base plywood 62. Since the ventilation path is secured even in the enclosed portion, even if the air containing moisture invades the indoor side in the first outer wall W1, the moisture is discharged and the wood beam material 3 or the like is discharged. It is possible to prevent corrosion of the frame and inner wall members.
- the ventilation structure 13 inside the second outer wall shown in FIG. 9 is a structure for ensuring ventilation inside the second outer wall W2 used on the first floor of the detached house, and the second outer wall W2 is the detached house. It is used in the outer wall of the building where higher strength is required. As shown in FIGS.
- the ventilation structure 13 in the second outer wall includes a pair of wood pillar material 2, a wood beam material 3, a wood base material 4, and a pair of first base plywood 61. It includes an intermediate pillar material 14 that stands between the wood pillar materials 2, and a reinforcing plywood 15 that is installed indoors from the first base plywood 61 and is fixed to the intermediate pillar material 14.
- the intermediate column member 14 shown in FIGS. 10 and 13 is a vertical member installed to maintain the strength of the wall, and a plurality of intermediate column members 14 are installed at intervals in the horizontal direction.
- the intermediate pillars 14 are as shown in the figure. Three will be installed.
- the intermediate pillar material 14 installed in the substantially center between the pair of wood pillar materials 2 has a found width of about 40 mm to 50 mm and a depth length similar to that of the wood pillar material 2, but other
- the two intermediate pillars 14 are formed to have a found width of about 40 mm to 50 mm and a depth length shorter than that of the wood pillar 2 by the thickness of the reinforcing plywood 15.
- the intermediate pillar member 14 is fitted into the first fitting groove 31 of the wood beam material 3 at the upper end and into the second fitting groove 41 of the wood base material 4 at the lower end. .. That is, the first fitting groove 31 and the second fitting groove 41 are formed at positions where the intermediate pillar member 14 is installed in the present embodiment.
- the reinforcing plywood 15 shown in FIG. 13 is a plate material installed between the intermediate pillar material 14 installed in the substantially center between the pair of wood pillar materials 2 described above and the wood pillar material 2. Further, the reinforcing plywood 15 is made of structural plywood, particle board, or the like having excellent shearing performance, like the first base plywood 61, and is formed in a range of about 9 to 15 mm in thickness and about 900 to 1000 mm in width. .. The height of the reinforcing plywood 15 varies depending on the height of the first floor of the detached house, but is at least about 20 mm shorter than the height from the lower end surface 3a of the wood beam material 3 to the upper end surface 4a of the wood base material 4. Formed by.
- the reinforcing plywood 15 can be fixed to the vertical base material 16 extending in the vertical direction and the horizontal base material 17 extending in the horizontal direction shown in FIG.
- the height of the vertical base material 16 is formed to be substantially the same as the height from the lower end surface 3a of the wood beam material 3 to the upper end surface 4a of the wood base material 4, the finding width is about 40 mm to 50 mm, and the depth length is wood. It is formed shorter than the pillar material 2 by the thickness of the reinforcing plywood 15.
- the horizontal base material 17 is a member installed between the wood pillar material 2 and the intermediate pillar material 14 or between adjacent intermediate pillar materials 14, and has a length of about 340 mm to 370 mm and a height of 40 mm to 40 mm. It is formed to have a depth of about 50 mm, and its depth length is substantially the same as that of the vertical base material 16.
- the construction method of the ventilation structure 13 inside the second outer wall will be described.
- the wood pillars 2 are installed at predetermined positions on the building foundation 7, the wood beams 3 are erected on the pair of wood pillars 2, and the pair of wood pillars are erected.
- the wood base material 4 is erected on the lower end portion 2a of the material 2.
- the upper end portion of the intermediate pillar material 14 is fitted into the first fitting groove 31 of the wood beam material 3, and the intermediate pillar material 14 is fitted into the second fitting groove 41 of the wood base material 4. Fit the lower end.
- FIG. 10 the wood pillars 2 are installed at predetermined positions on the building foundation 7, the wood beams 3 are erected on the pair of wood pillars 2, and the pair of wood pillars are erected.
- the wood base material 4 is erected on the lower end portion 2a of the material 2.
- the upper end portion of the intermediate pillar material 14 is fitted into the first fitting groove 31 of the wood beam material 3
- the intermediate pillar material 14 is fitted
- the plurality of intermediate pillar members 14 are installed close to the indoor side so that the indoor side surface is substantially the same position as the indoor side surface of the wood pillar material 2 in a plan view. Will be done. Then, as with the stud material 9, a nail (not shown) is driven diagonally from the upper end side of the intermediate pillar material 14 or the lower end side of the intermediate pillar material 14, and the intermediate pillar material 14 is used as the wood beam material 3 and the wood base. It is fixed to the material 4.
- the vertical base material 16 is fixed in a predetermined position. That is, the vertical base material 16 is erected on the side of each wood pillar material 2 on the side of the intermediate pillar material 14 and on both sides of the intermediate pillar material 14 located substantially in the center between the pair of wood pillar materials 2, and nails ( (Not shown) to fix to the wood pillar 2 or the intermediate pillar 14, respectively. Subsequently, the horizontal base material 17 is arranged between the vertical base material 16 and the intermediate pillar material 14 in the upper end surface 4a of the wood base material 4, and a nail (not shown) is driven into the wood base material 4 from above. Fix it.
- the horizontal base material 17 is arranged between the vertical base material 16 and the intermediate pillar material 14 in the lower end surface 3a of the wood beam material 3, and a nail (not shown) is driven from below to drive the wood beam material 3. Fixed to. At this time, as shown in FIG. 9, the vertical base material 16 and the horizontal base material 17 are arranged so that the indoor side surface is substantially the same as the indoor side surface of the wood pillar material 2 in a plan view. It is installed close to the inside. Further, as shown in FIG. 10, the horizontal base material 17 is fixed with both ends separated from the intermediate pillar material 14 and the vertical base material 16.
- the reinforcing plywood 15 is fitted between the intermediate pillar material 14 installed substantially in the center between the pair of wood pillar materials 2 and the wood pillar material 2, and is vertical with a nail 11. It is fixed to the base material 16, the horizontal base material 17, and the intermediate pillar material 14.
- the upper end 15a of the reinforcing plywood 15 is installed so as to be separated from the lower end surface 3a of the wood beam material 3 by about 10 mm, and the lower end 15b is 10 mm from the upper end surface 4a of the wood base material 4. It is installed at a distance.
- the drainage material 12 is fixed to the lower end of the outdoor side surface 4b of the wood base material 4 shown in FIG. 12 with screws, and the first base plywood 61 and the second base plywood 62 are fixed. Is fixed to the pair of wood pillar material 2, wood beam material 3, and wood base material 4. Finally, the outer wall decorative material 5 is fixed to the outdoor side of the first base plywood 61 with a special metal fitting (not shown) to form the second outer wall W2, and the ventilation structure 13 inside the second outer wall is completed.
- the air around the lower end of the second outer wall W2 formed in this way passes through the inside of the second outer wall W2 due to the updraft and moves upward. That is, as shown by the arrows X2 in FIGS. 11 and 12, the air existing around the wood base material 4 forms the second ventilation groove 42 of the wood base material 4 from between the drainage material 12 and the building foundation 7. After passing, it passes in order between the wood base material 4 and the reinforcing plywood 15, and between the horizontal base material 17 and the vertical base material 16 or the intermediate pillar material 14, and moves upward. Then, these air pass between the wood beam material 3 and the reinforcing plywood 15, pass through the first ventilation groove 32 of the wood beam material 3, and move upward to the above-mentioned eaves back ventilation port D1 or not. It can be discharged to the outside from the ventilation port on the back of the cabin shown in the figure. Further, the air around the lower end portion of the decorative outer wall material 5 is discharged to the outside by the same ventilation path as in the first embodiment.
- the second outer wall W2 formed in this way can be further increased in strength as compared with the first outer wall W1 in which the reinforcing plywood 15 is not installed. Further, by adjusting the depth length and installation position of the intermediate pillar material 14, the vertical base material 16, and the horizontal base material 17, and separating the reinforcing plywood 15 from the wood beam material 3 and the wood base material 4, the air passage is performed. Can be secured and moisture can be discharged from above. Therefore, the ventilation structure 13 in the second outer wall of the present application can effectively prevent the occurrence of internal dew condensation in the second outer wall W2 while constructing the outer wall structure having high strength.
- the ventilation structure inside the outer wall according to the present invention can be suitably used for a building having a wooden structure, and can also be used to secure ventilation from the back of the eaves to the upper floors.
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Abstract
Description
図1及び図2に示す第1の外壁体内の通気構造1は、戸建住宅の1階外壁である第1外壁W1内の通気を確保するための構造である。図1から図3に示すように、外壁体内の通気構造1は、互いに間隔を空けて立設する一対の木質柱材2と、一対の木質柱材2の上に架設される木質梁材3と、一対の木質柱材2の下端部2aに架設される木質下地材4と、一対の木質柱材2、木質梁材3、及び木質下地材4よりも屋外側に固定され、且つ、外壁化粧材5の下地となる第1下地合板61と、を備えている。
次に、第2の外壁体内の通気構造13について各図を参照しつつ説明する。なお、第2実施形態は、中間柱材及び補強合板の構成が第1実施形態と異なる他は、第1実施形態とほぼ同様の構成であるので、第1実施形態と同様の構成に関しては同一の符号を付して説明を省略する。図9に示す第2の外壁体内の通気構造13は、戸建住宅の1階に用いられる第2外壁W2内の通気を確保するための構造であり、また第2外壁W2は、戸建住宅の外壁のうち、より高い強度が必要な箇所に使用される。図9及び図10に示すように、第2の外壁体内の通気構造13は、一対の木質柱材2と、木質梁材3と、木質下地材4と、第1下地合板61と、一対の木質柱材2間に立設する中間柱材14と、第1下地合板61よりも屋内側に設置され、中間柱材14に固定される補強合板15と、を備えている。
2 木質柱材
2a 木質柱材の下端部
21a 垂直材の屋外側の面(木質柱材の屋外側の面)
3 木質梁材
32 第1通気溝
3a 木質梁材の下端面
3b 木質梁材の屋外側の面
3c 木質梁材の屋外側の面の上端
3d 木質梁材の屋外側の面の下端
4 木質下地材
42 第2通気溝
4a 木質下地材の上端面
4b 木質下地材の屋外側の面
4c 木質下地材の屋外側の面の上端
4d 木質下地材の屋外側の面の下端
5 外壁化粧材
5a 外壁化粧材の屋内側の面
61 第1下地合板(下地合板)
61a 第1下地合板の屋外側の面
13 第2の外壁体内の通気構造
14 中間柱材
15 補強合板
15a 補強合板の上端
15b 補強合板の下端
Claims (3)
- 互いに間隔を空けて立設する一対の木質柱材と、
当該一対の木質柱材の上に架設され、屋外側の面に第1通気溝を有する木質梁材と、
前記一対の木質柱材の下端部に架設され、屋外側の面に第2通気溝を有する木質下地材と、
前記一対の木質柱材、前記木質梁材、及び前記木質下地材のそれぞれの屋外側の面に固定され、且つ、外壁化粧材の下地となる下地合板と、を備え、
前記第1通気溝及び前記第2通気溝は、水平方向へ間隔を開けてそれぞれ複数形成されることを特徴とする外壁体内の通気構造。 - 前記下地合板は、屋外側の面が、前記外壁化粧材の屋内側の面と離間していることを特徴とする請求項1に記載の外壁体内の通気構造。
- 前記一対の木質柱材間に立設する中間柱材と、
前記下地合板よりも屋内側に設置され、前記中間柱材に固定される補強合板と、を備え、
前記補強合板は、上端が前記木質梁材の下端面から離間して設置されるとともに、下端が、前記木質下地材の上端面から離間して設置されることを特徴とする請求項2に記載の外壁体内の通気構造。
Priority Applications (4)
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PCT/JP2020/048135 WO2022137382A1 (ja) | 2020-12-23 | 2020-12-23 | 外壁体内の通気構造 |
AU2020419559A AU2020419559A1 (en) | 2020-12-23 | 2020-12-23 | Ventilation structure in exterior wall body |
GB2109808.2A GB2607972A (en) | 2020-12-23 | 2020-12-23 | Ventilation structure within exterior wall |
US17/428,740 US20230017566A1 (en) | 2020-12-23 | 2020-12-23 | Ventilation structure in exterior wall body |
Applications Claiming Priority (1)
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PCT/JP2020/048135 WO2022137382A1 (ja) | 2020-12-23 | 2020-12-23 | 外壁体内の通気構造 |
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US (1) | US20230017566A1 (ja) |
AU (1) | AU2020419559A1 (ja) |
GB (1) | GB2607972A (ja) |
WO (1) | WO2022137382A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003064769A (ja) * | 2001-08-21 | 2003-03-05 | Hiroyuki Matsumoto | 木造建築物の建築方法 |
JP2004176386A (ja) * | 2002-11-27 | 2004-06-24 | Sekisui House Ltd | 壁体内通気構造 |
JP2005127088A (ja) * | 2003-10-27 | 2005-05-19 | Shiro Komuten:Kk | 木造建築 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US2118237A (en) * | 1936-09-18 | 1938-05-24 | Ingleside Inc | Partition |
US4031681A (en) * | 1976-02-04 | 1977-06-28 | Joseph Charniga | Wall construction |
US5477651A (en) * | 1994-05-05 | 1995-12-26 | Fitzgibbon; Chester M. | Vapor exhaust system for use in building wall construction |
AU746655B2 (en) * | 1999-12-24 | 2002-05-02 | Nichiha Co., Ltd | External wall construction |
GB0019934D0 (en) * | 2000-08-15 | 2000-09-27 | Charland Gilles | Grooved construction beam |
US6792725B1 (en) * | 2002-09-10 | 2004-09-21 | Flannery Inc. | Vent device for a wall structure |
JP5667389B2 (ja) * | 2010-07-20 | 2015-02-12 | ニチハ株式会社 | 木造建築物における耐力面材を使用した壁構造とその施工方法。 |
FR2988111B1 (fr) * | 2012-03-16 | 2015-12-18 | Bernard Lamberton | Mur exterieur pour maison a ossature bois ventile par la toiture |
-
2020
- 2020-12-23 GB GB2109808.2A patent/GB2607972A/en active Pending
- 2020-12-23 US US17/428,740 patent/US20230017566A1/en not_active Abandoned
- 2020-12-23 AU AU2020419559A patent/AU2020419559A1/en active Pending
- 2020-12-23 WO PCT/JP2020/048135 patent/WO2022137382A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003064769A (ja) * | 2001-08-21 | 2003-03-05 | Hiroyuki Matsumoto | 木造建築物の建築方法 |
JP2004176386A (ja) * | 2002-11-27 | 2004-06-24 | Sekisui House Ltd | 壁体内通気構造 |
JP2005127088A (ja) * | 2003-10-27 | 2005-05-19 | Shiro Komuten:Kk | 木造建築 |
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GB2607972A (en) | 2022-12-21 |
GB202109808D0 (en) | 2021-08-18 |
AU2020419559A1 (en) | 2022-07-07 |
US20230017566A1 (en) | 2023-01-19 |
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