JP2001080246A - Airtight performance deciding sheet for wooden building, and method for deciding airtight performance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decide an airtight performance of a wooden building before its construction. SOLUTION: The airtight performance deciding sheet decides an airtight performance of a wooden building. The sheet comprises A fill-in column 7 of a parameter set to display a gap area equivalent to a leaking site area value at each leaking site of the building in advance, and fill-in columns 19, 11, 13 and 19 for respectively filling in an area equilvalent value of the leaking site, a gap area of each set site obtained by multiplying the area equivalent value of each leaking site by a parameter, an overall wet site gap area of the entire leaking site obtained by adding the gap areas of all the leaking sites, and an equivalent gap area obtained by dividing the overall leaking site gap area by a total floor area of the building.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a judgment sheet and a judgment method for judging the airtightness of a wooden building constructed by a wooden frame method.

[0002]

2. Description of the Related Art In the next-generation energy-saving standards "Design and Construction Guidelines" issued by the Ministry of Construction Notification No. 998, dated March 30, 1999, energy conservation measures should be applied to houses from a global perspective, such as prevention of global warming. In the future, it is necessary to adopt an airtight construction method even in warm regions, and according to this construction guideline, airtight performance that was conventionally only required in cold regions Will be applied.

In the airtight construction method based on the above construction guidelines, it is necessary to continuously apply a moisture-proof airtight sheet to the outer skin of the building (the uppermost ceiling, the lowermost floor, and the outer wall). It is generalized as a sheet construction method. Further, when the sheets are not continuous, it is required to securely connect the sheets with a tape or the like.

[0004] By the way, when judging the airtightness of a house constructed by the airtight method in this way, conventionally, the airtightness of a house actually constructed was measured using an airtightness measuring instrument, and the measured value was measured. Is compared with a reference value to obtain a reference airtightness (equivalent gap area of 2 cm in cold regions).
² / m ² or less. Equivalent gap area 2-5cm ² /
m ² or less) is possible to determine whether it is secured.

[0005]

Therefore, in such a case, it is impossible to determine whether or not the airtight performance conforming to the standard is obtained until the airtightness is measured after the construction of the house. In particular, in a warm region, for a worker (carpenter) who is not accustomed to the above-mentioned method of sticking sheet, sheet sticking or tape sticking is a complicated operation, and it is possible to determine in advance whether or not the desired airtightness is secured before the work. By doing so, the construction can be performed with ease, which is advantageous in construction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to estimate a corresponding clearance area from predetermined parameters for each air leaking part of a wooden building, and The purpose of the present invention is to make it possible to judge the airtight performance before constructing the airtightness.

[0007]

In order to achieve the above object, in the first aspect of the present invention, a dedicated judgment sheet for judging the airtightness of a wooden building is provided.

[0008] That is, the sheet for judging the airtightness of a wooden building according to the present invention is an area-equivalent-value entry column in which an area-equivalent value (including the area itself) converted from the area of each leaked part of the building is entered. And, a parameter description column that describes a parameter that is set in advance to represent the gap area per area equivalent value of each leak site for each leak site of the building,
A gap area entry column for entering a gap area of each leak site obtained by multiplying an area equivalent value of each leak site entered in the area equivalent entry column by a parameter of the parameter entry column; A column for entering a total leak area gap area for entering the total leak area gap area of the entire leak area obtained from the gap area of all leak sections in the entry column, and a total leak for the total leak area gap area entry column An equivalent gap area entry field is provided for entering an equivalent gap area obtained by dividing the air gap area by the total floor area of the building.

[0009] When judging the hermeticity of a building with the above configuration, the area equivalent value of the leaked part of the building is entered in the area equivalent value entry column of each entry column of the judgment sheet.
Then, the area equivalent value entered in the area equivalent value entry column is multiplied by the parameter of the gap area per area equivalent value for each leak site, which is described in the parameter description column in advance. Is obtained, and this value is entered in the space area entry column. Thereafter, the total leak area gap area is obtained by adding the gap areas of all the leak areas in the gap area entry field, and the value is entered in the total leak area gap area entry field. The equivalent leak area is obtained by dividing the total leak area gap area in the section gap area entry column by the total floor area of the building, and is entered in the equivalent gap area entry column. Then, the airtightness of the wooden building is determined from the equivalent gap area in the equivalent gap area entry column. By doing so, it becomes possible to estimate the gap area of the wooden building at the stage before constructing it, and it is easy to improve the airtight performance without actually performing airtight measurement at the building site. Can be determined.

In the second aspect of the present invention, in the airtightness performance judgment sheet, the column for entering the total leak area gap area is a value obtained by adding the gap area of all the leak areas to a predetermined safety value corresponding to the external shape of the building. The value multiplied by the rate shall be entered as the total leak area clearance area. In this way, it is possible to determine the hermetic performance by multiplying the safety factor according to the external shape of the building, to prevent the estimated hermetic performance from becoming higher than the actual hermetic performance, and to determine the hermetic performance more. It can be performed stably.

According to the third aspect of the present invention, the airtight performance determination sheet has a total floor area entry field for entering the total floor area of the building. By providing a total floor area entry column in the airtight performance determination sheet in this way, when obtaining the equivalent clearance area, look at the total floor area of the building entered in the above total floor area entry column, and use the entered value. What is necessary is just to divide the total leak area gap area entered in the total leak area gap area entry column, and the equivalent gap area can be easily calculated.

According to the fourth aspect of the present invention, there are six leaked parts of the building: a floor and a wall joint, a wall and a ceiling joint, a Japanese-style room, equipment, a bathroom, and an opening. In this way, the airtightness of the building is determined from the equivalent gap area in the equivalent gap area entry column in the airtightness performance determination sheet, and when the predetermined airtightness cannot be obtained, the larger one of the six leaked parts is used. Therefore, a process of reducing the gap (for example, a process of repairing with a sealing or a tape, or a process of replacing the device with an airtight device, etc.) may be performed, and a change for improving the airtight performance can be easily performed.

The invention according to claims 5 and 6 is an airtightness performance judging method for judging the airtightness performance of a wooden building. A parameter representing the gap area per area equivalent value converted from the area of the leaked part is set, and the above parameter is multiplied by the area equivalent value of each leaked part to obtain the gap area for each leaked part. By calculating the total leak area gap area of the entire leak area based on the gap area of the leak area, and calculating the equivalent gap area by dividing the total leak area gap area by the total floor area of the building, Determine the airtightness of a wooden building. According to this invention, the same operation and effect as those of the first aspect can be obtained.

According to a sixth aspect of the present invention, in the method for judging the airtightness of a wooden building according to the fifth aspect of the present invention, a predetermined value corresponding to the outer shape of the building is added to a value obtained by adding a clearance area of all leaked parts. The value multiplied by the safety factor is defined as the total leak area clearance area.
According to this invention, the same operation and effect as those of the second aspect of the invention can be obtained.

[0015]

1 and 2 show a sheet S for judging the hermetic performance of a wooden building according to an embodiment of the present invention. This sheet S is used for a wooden house or the like constructed by a wooden frame method. It is used to determine the airtightness of a wooden building.
The determination sheet S is made of, for example, paper or the like, and is integrated such that the lower half portion shown in FIG. 2 is continuous with the lower half portion shown in FIG. 1 under the upper half portion shown in FIG. (Note that the determination sheet S may be divided into a plurality of sheets.)

Each of the following fields is printed on the determination sheet S in advance. That is, the determination sheet S
At the left end portion, a leak site description column 1 representing a plurality of leak sites in the outer skin of the building is provided over substantially the entire upper and lower sides,
The leak site description column 1 includes a large classification column 2 which classifies the leak sites into large groups, and a small classification column 3 in which each leak site in the large class column 2 is further classified. In particular,
As the air leakage site in the large classification column 2, there is described a working material in a room other than the Japanese-style room, a Japanese-style room (limited to a case where the entire building is 16 tatami or less), equipment, a bathroom, and an opening.

On the other hand, the subclassification column 3 describes the joint between the floor and the wall and the joint between the ceiling and the wall as the leaked portion of the construction material. In addition, long press,
The ceiling and the tatami mat are described. As the leaking parts of the equipment, ceiling inspection door, underfloor inspection door, underfloor storage, range hood, local ventilation fan, outlet, switch, switchboard, downlight, and piping / wiring are described. Ventilation fans and inspection ports are described as leaking parts in the bathroom. Further, windows, entrance doors, and access doors are described as the air leakage sites of the openings.

On the right side of the small classification column 3 of the leak site description column 1, a specific operation for each leak site of the small classification column 3 is performed.
One or a plurality of hermetic measures and conditions for each hermetic measure are described in a hermetic measure description column 5. For example, a part of each leaked portion in the airtightness countermeasure description column 5 is, for example, no treatment, an airtight skirting board and a sealing are described for a joint portion between a floor and a wall. In addition, the essential conditions are described in the airtight baseboard at the site where the baseboard is used, and the essential conditions are described in the sealing at the site where the baseboard is not used. In addition, for the joint between the ceiling and the wall, no treatment, hermetic fringe and putty treatment are described, and no treatment is prohibited, and the hermetic fringe has essential conditions at the fringe use site, In addition, the putty treatment describes the essential conditions at the unused portion of the periphery.

For the ceiling of a Japanese-style room, there is a description of no base material and the execution of a base material. Conditions for prohibition without the base material and conditions essential for the base material construction are described.

Further, as for the ceiling inspection opening of the equipment, a normal product and an airtight product are described. Standard conditions (limited to two or less) are described for the above normal product, and a recommended condition (three products) is provided for the airtight product. The above conditions are required). For the same equipment, for local ventilation fans, standard products and products with shutters are described. Standard products have standard (limited to 3 or less) conditions, and products with shutters are recommended (if 4 or more products are required). Are described respectively.

Further, as for the ventilation fan and the inspection port of the bathroom, only the normal product is described, and the standard condition is described as the condition.

For the windows of the opening, A3 grade and A4 grade windows are described. Standard conditions (limited to an aperture ratio of 30% or less) for A3 grade windows, and A4 grade windows for A4 grade windows. Describes the essential conditions when the aperture ratio exceeds 30%. For entrance doors with the same opening, A3 grade and A4 grade doors are described, and A3 grade doors have standard (limited to one or less) condition, and A
In the case of four or more entrance doors, necessary conditions for installing two or more doors are described.

On the right side of the column 5 for the airtight measures, a parameter set in advance for each airtight measure of each airtight part of the building so as to represent a gap area per area equivalent value of each airtight part described later. A parameter description column 7 shown in (a) is formed corresponding to each airtight measure. The numerical value of this parameter is determined in advance by, for example, an experiment or the like. To illustrate some examples, for example, as the above-mentioned parameter corresponding to no processing of the joint between the floor and the wall, 1 m ² (= area equivalent value) )) Is described as 1.3 cm ² (1.3 cm ² / m ² ). Further, as a parameter corresponding to the base material construction on the ceiling of the Japanese-style room, 2.2 cm ² (2.2 cm ² / tatami) per 1 tatami (= area equivalent value) is described. Further, as a parameter corresponding to the product corresponding to the airtightness of the ceiling inspection opening of the facility, 1.0 cm per piece (= area equivalent value).
² (1.0 cm ² / piece). Furthermore,
45.0 cm ² (45.0 cm ² / piece) per unit (= area equivalent value) is described as a normal product of the ventilation fan and inspection port in the bathroom. Further, as a parameter corresponding to an A3 grade window of the opening, 2.4 cm ² (2.4 cm ² / m ² ) per 1 m ² (= area equivalent value) is described.
Further, as a parameter corresponding to the A4 class entrance door of the opening, 2.0 cm ² per sheet (= area equivalent value)
(2.0 cm ² / sheet).

On the right side of the parameter description column 7, an area equivalent value entry column 9 for entering an area equivalent value (b) converted from the area for each airtightness measure of each air leak site corresponds to each airtightness measure. It is provided. The area equivalent value also includes the area itself, and is calculated based on the specifications at the design stage of the building (see FIGS. 3 and 4). For example, as the area equivalent value corresponding to each of the above-mentioned building materials, the piping / wiring of the equipment, and the window of the opening, “m ² ” indicating the area itself is used, and the area equivalent value corresponding to the ceiling of the Japanese-style room indicates the area. "Tatami" is the area corresponding to the facilities other than piping and wiring, and the ventilating fan and inspection port in the bathroom.The "individual", which indicates the number as the area, is the area corresponding to the entrance door and the open door of the opening. As the equivalent value, the number of “sheets” is used.

The area (equivalent value of area) in the above-mentioned construction material is obtained as a value obtained by subtracting the area of the Japanese room and the area of the bathroom from the total floor area. The area of the piping and wiring (equivalent value of the area) in the equipment shall be the total floor area. Further, the calculated area (area equivalent value) of the window is a total value of the area of the entire window.

Further, on the right side of the area equivalent value entry column 9,
That is, at the right end of the determination sheet S,
Clearance area to fill in clearance area (a × b) for each airtight measure
An entry column 11 is provided corresponding to each airtight measure. This
In the gap area entry column 11 of the
The parameters listed for each security measure and the parameters
For each airtight measure, enter the area equivalent value entry column 9 corresponding to the
Each obtained by multiplying the area equivalent value listed
Gap area (unit: cm) for each airtightness measure ^Two) Is written
(See FIGS. 3 and 4).

Then, as shown in FIG.
In the lower end portion, a total leak area gap area entry field 13 for writing the total leak area gap area (d) of the entire leak area obtained from the gap area of all the leak areas in the gap area entry field 11 is provided. (Unit: cm ² ) is formed. The total leak area gap area is a value obtained by multiplying a subtotal obtained by adding the gap areas of all the leak sections with a predetermined safety factor according to the outer shape of the building. The safety factor varies depending on the presence or absence of a shed, and is 1.18 (18% increase) when there is a shed, and 1.11 (11% increase) when there is no shed.

More specifically, a subtotal entry field 14 in which a subtotal (c) (unit: cm ² ), which is obtained by adding and adding the clearance areas of all the leaked parts in the clearance area entry field 11, is entered.
And a correction value (unit: cm ² ) obtained as an increase by the safety factor based on the subtotal (a value obtained by adding the clearance areas of all the leaked parts) entered in the subtotal entry field 14. A value entry column 15 is provided, and a value obtained by adding a correction value to the subtotal entered in the subtotal entry column 14 is used in the total leak site gap area entry column 13, that is, the safety factor is multiplied by the subtotal. The value is entered as the total leak area clearance area (see FIGS. 3 and 4).

A total floor area entry column 17 for entering the total floor area (e) (unit: m ² ) of the building is provided below the total leakage area gap area entry column 13. Also,
Below the total floor area entry field 17, the total leak area clearance area of the total leak area clearance area entry field 13 is calculated using the total floor area of the building entered in the total floor area entry field 17. Equivalent gap area (d / e) obtained by dividing (unit: cm ² )
/ M ² ) is provided.

Next, a method for judging the airtightness of a wooden building using the airtightness judgment sheet S of the above embodiment will be described. As shown in FIGS. 3 and 4, first, a parameter representing a gap area per area equivalent value converted from the area of each leak site is set in advance for each leak site of the building. The parameter per area equivalent value is multiplied by the area equivalent value of each leak site to determine the gap area for each leak site. Specifically, a corresponding airtightness measure is selected from among the airtightness measure description fields 5 for each of the small classification fields 3 of the air leak site description field 1 in the determination sheet S, and an area equivalent value corresponding to the selected airtightness measure is entered. The area equivalent value (b) is entered in the column 9 and the entered area equivalent value is multiplied by the parameter (a) described in the parameter entry column 7 in advance to obtain the gap area (a × b) ( Unit: cm ² )
The numerical value is entered in the space area entry column 11. The above-described entry processing is performed for all of the small classification fields 3 of the leak area description field 1.

Next, the total leak area gap area of the entire leak area is calculated based on the gap areas of all the leak areas. That is, the subtotal (c) (386.8 cm ^{2 in the} illustrated example) is obtained by adding the clearance areas of all the leaked parts in the clearance area entry column 11, and this subtotal is entered into the subtotal entry column 14.
Fill in. The subtotal entered in the subtotal entry field 14 is multiplied by an increase (0.18 in the example shown) of the safety factor (1.18 in the illustrated example) to give a correction value (69.6 cm ^{2 in the example} ).
And the correction value is entered in the correction value entry field 15. Then, by adding the correction value entered in the correction value entry column 15 to the subtotal entered in the subtotal entry column 14, the total leak area gap area (d) (456.4 cm ^{2 in the} illustrated example) is calculated.
The calculated value is entered in the total leak area gap area entry column 13. The total leak area clearance area is a value obtained by directly multiplying the subtotal by the safety factor.

Thereafter, an equivalent gap area is obtained by dividing the total leak area by the total floor area of the building, and the airtightness of the wooden building is determined from the equivalent gap area. Specifically, the total floor area (e) (126.7 m ^{2 in the} illustrated example) of the building is entered in the total floor area entry field 17 at the lower end of the determination sheet S, and the total floor area entry field 17 is entered. Is divided by the total leak area gap area entered in the total leak area gap area entry column 13 to obtain an equivalent gap area (d / e) (3.6 cm ² / m ^{2 in the} illustrated example). ) Is obtained, and this equivalent gap area is entered in the equivalent gap area entry field 19.
At this time, since the total floor area entry column 17 is provided in the airtight performance determination sheet S, the total floor area entry column 17 is provided.
In this case, the total leak area gap area in the total leak area gap area entry column 13 may be divided by the total floor area entered in, and the calculation of the equivalent gap area becomes easy.

Then, for example, the equivalent gap area in the equivalent gap area entry column 19 is used as a reference (equivalent gap area is 2 cm ² / m ² or less in a cold region; equivalent gap area is 2 to ⁵ c in a warm region).
m ² / m ² or less), it is determined whether or not a predetermined airtight performance is obtained.

Therefore, in this embodiment, the airtight performance of the wooden building is determined using the airtight performance determination sheet S as described above.
The gap area of the building can be estimated, and the hermeticity of the building can be easily determined without actually performing airtightness measurement on site.

Further, the total leak area of the building is determined by multiplying the safety factor corresponding to the outer shape of the building by the subtotal obtained by adding the clearance areas of all the leak sections. The airtight performance can be determined by multiplying the safety factor according to the outer shape of the
By making the estimated hermetic performance lower than the actual hermetic performance, it is possible to stably determine the hermetic performance.

In addition, the airtightness of the building is determined by setting the floor and wall joints, the wall and ceiling joints, the Japanese-style room, the facilities, the bathroom, and the opening as the leaking parts of the building. The airtightness of the building is determined from the equivalent gap area in the equivalent gap area entry column 19 in the sheet S, and if the predetermined airtightness is not obtained, the gap is determined from the larger one of the six leaked parts. It is possible to perform a process of reducing the size (for example, a process of repairing with sealing or tape, a change of equipment to an airtight product, or a reduction in the number of ventilation fans, outlets, and the like). This facilitates changes to improve the hermetic performance of the building.

In the above embodiment, the correction value entry column 15 is provided on the airtight performance determination sheet S. However, the correction value entry column 15 is eliminated, and the subtotal (c) entered in the subtotal entry column 14 is directly entered. The total leak area gap area (d) may be obtained by multiplying the safety factor.

In the present invention, the specific numerical values of the parameters described in the parameter description column 7 and the aspect of the area equivalent value in the area equivalent value entry column 9 can of course be changed as necessary. .

[0039]

Next, a specific example will be described. The airtight performance of a wooden house (wooden frame method) before construction was determined using the airtight performance determination sheet S as in the above embodiment. The numerical values specifically entered in the respective entry columns of the determination sheet S are as shown in FIGS. 3 and 4, and the total leak site gap area (the safety factor 1. 18) is 456.4 cm ² , and the total floor area of the building entered in the total floor area entry field 17 is 126.7.
m ² , and the equivalent gap area was 3.6 cm ² / m ² .

On the other hand, the airtightness (equivalent gap area) of a wooden house of the same specification that was actually constructed was measured using an airtightness measuring device manufactured by Corner Sapporo Co., Ltd. In other words, with the windows and doors of the house locked and the ventilation fan and range hood with shutter both closed, the air inside the house is discharged to the outside with a blower to decompress the inside of the house, and the air flow (of the blower A regression curve was obtained by the least squares method from the airflow) and the pressure difference between the inside and outside of the house (the degree of decompression inside the room). The curve is shown in FIG. When the total leak area gap area was calculated from this regression curve (a well-known calculation method), the ventilation rate at a pressure difference of 1.0 mmAq on the regression curve was 607 m ³ / h, and the temperature-dependent coefficient was 0. .7, 425cm
² (= 607 × 0.7). Since the total floor area of the house is 126.7 m ² , the equivalent gap area is 425
÷ 126.7 = 3.3 cm ² / m ² was obtained.

The measured value (3.3 cm ² / m ² ) was converted to the equivalent gap area (3.6 cm ² ) by the airtight performance judgment sheet S.
/ M ² ), both equivalent gap areas are substantially the same. Therefore, it can be seen that the use of the airtight performance determination sheet S allows the airtight performance of the building to be easily determined without actually performing airtightness measurement on site.

Although the two values are substantially the same, a detailed comparison shows that the equivalent gap area of the determination sheet S is slightly larger than the actually measured value. This is because the equivalent gap area by the determination sheet S depends on the safety factor, and by using this safety factor, the airtight performance by the determination sheet S does not become higher than the actual airtight performance (the equivalent gap area increases). It can be seen that the airtight performance can be determined stably.

[0043]

As described above, according to the first aspect of the present invention, in order to determine the hermetic performance of a wooden building, the parameters per area equivalent value set in advance for each leak site of the building are determined. In the description column, the area equivalent value of each leak site, the gap area of each leak site obtained by multiplying the area equivalent value of each leak site by a parameter, and the leak area obtained based on the gap area of all leak sites A determination sheet provided with an entry column for entering an equivalent gap area, which is a value obtained by dividing the total leak area gap area of the entire air leak area and the total leak area gap area by the total floor area of the building, is provided. . According to the invention of claim 5, as a determination method for determining the airtightness of a wooden building, a parameter per area equivalent value is set in advance for each leak site of the building, and each parameter is set to this parameter. Multiply the area corresponding to the area of the leaked part to obtain the gap area for each leaked part, calculate the total leaked area of the entire leaked part based on the gap area of all the leaked parts, and calculate the total leaked area. The air gap performance of the wooden building was determined by calculating the equivalent gap area by dividing the gap area by the total floor area of the building. According to each of these inventions, it is possible to estimate the gap area at a stage before constructing a wooden building, to eliminate the need for airtight measurement on site, and to facilitate determination of the airtightness performance of the wooden building. it can.

According to the second or sixth aspect of the present invention, the value obtained by multiplying the predetermined safety factor according to the external shape of the building is defined as the total leak area clearance area, so that the safety factor according to the external shape of the building is improved. Thus, the airtight performance can be determined to stabilize the determination of the airtight performance.

According to the third aspect of the present invention, the airtight performance judgment sheet is provided with a total floor area entry column for entering the total floor area of the building, thereby facilitating the calculation of the equivalent clearance area. it can.

According to the fourth aspect of the present invention, the air leaking part of the building includes a floor and a wall joint, a wall and a ceiling joint, a Japanese-style room,
The provision of the equipment, the bathroom, and the opening makes it possible to easily change the airtight performance.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an upper half portion of an airtight performance determination sheet according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a lower half of an airtight performance determination sheet.

FIG. 3 is a diagram corresponding to FIG. 1 showing an upper half portion of an airtight performance determination sheet in a state where actual numerical values are entered.

FIG. 4 is a diagram corresponding to FIG. 2, showing the lower half of the airtight performance determination sheet in a state where actual numerical values are entered.

FIG. 5 is a characteristic diagram showing a relationship between a ventilation amount measured by an airtightness measuring device and a pressure difference between inside and outside of a house.

[Explanation of Signs] S Airtight Performance Judgment Sheet 1 Leakage site entry field 7 Parameter entry field 9 Area equivalent value entry field 11 Gap area entry field 13 Total leak location gap area entry field 14 Subtotal entry field 15 Correction value entry field 17 Total floor area entry field 19 Equivalent clearance area entry field

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenichi Sato 1 in Inami-cho, Inami-cho, Higashi-Tonami-gun, Toyama Prefecture Inside Daiken Kogyo Co., Ltd. 1 Within Daiken Kogyo Co., Ltd. (72) Kenji Hasegawa, Inventor Kenji Hasegawa 1 at Inami-cho, Inami-cho, Higashi Tonami-gun, Toyama Prefecture No.1 Daiken Kogyo Co., Ltd. F-term (reference) 2E001 DB02 DC02 FA03 FA11 FA14 FA32 FA33 FA34 FA35 FA42 NA01 NC02

Claims (6)

[Claims] 1. A judgment sheet for judging the airtightness performance of a wooden building, comprising: an area equivalent value entry column for entering an area equivalent value converted from the area of each leak site of the building; A parameter entry column that describes a parameter set to represent the gap area per area equivalent value of each leak site for each leak site of the building, and a parameter entry column that fills in the area equivalent entry column. A gap area entry column for entering the gap area of each leak site obtained by multiplying the area equivalent value of the leak site by the parameter of the parameter entry column, and a gap area of all the leak sites in the gap area entry column The total leak area gap area entry column that fills in the total leak area gap area of the entire leak area determined from the above, and the total leak area gap area in the above all leak area gap area entry column is the total floor area of the building Divided by Airtightness determination sheet wooden structure, characterized in that a corresponding gap area entry field to enter those clearance area. 2. The sheet for judging the airtightness of a wooden building according to claim 1, wherein the column for entering the area of the space of all leaked parts is a value obtained by adding the area of the gap of all leaked parts to the value of the outer shape of the building. An airtightness performance judgment sheet for a wooden building, wherein a value obtained by multiplying a predetermined safety factor is entered as a total leak area clearance area. 3. The airtightness performance of a wooden building according to claim 1 or 2, further comprising a total floor area entry field for entering the total floor area of the building. Judgment sheet. 4. The sheet for judging airtight performance of a wooden building according to claim 1, wherein the leaked portion is a joint between a floor and a wall, a joint between a wall and a ceiling,
An airtightness judgment sheet for a wooden building, which is a Japanese-style room, equipment, a bathroom, and an opening. 5. A judgment method for judging the airtightness of a wooden building, comprising: for each leak site of the building, a gap area per area equivalent value converted from the area of each leak site in advance. Is set, and the above parameter is multiplied by the area equivalent value of each leak site to obtain a gap area for each leak site. Based on the gap area of all the leak sites, the entire leak site is determined. Determining the airtightness of a wooden building by calculating the total leak area gap area and obtaining an equivalent gap area by dividing the total leak area gap area by the total floor area of the building; A method for determining the airtightness of a building. 6. The method for judging the airtightness of a wooden building according to claim 5, wherein a value obtained by multiplying a value obtained by adding the clearance areas of all the leaked parts by a predetermined safety factor according to the outer shape of the building is obtained. A method for judging the airtightness of a wooden building, characterized in that the area is a leak area.