JP3088674B2 - Construction method of roofing material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a novel roofing underlaying material which can reliably prevent water leakage even if there is rainfall before the installation of a roofing material such as a tile on the underlaying material after construction. It relates to the construction method.

[0002]

2. Description of the Related Art Conventionally, when an underlaying material is installed on a sloped roof, the underlaying material is stapled to a base plate. The number of staples is, for example, about 3,000 in the case of a roof area of 50 tsubo.

The underlaying material is applied for the purpose of waterproofing, and if staples are driven into the underlaying material, a hole is formed. As a result, the waterproofness of the underlaying material is reduced, but water leakage does not occur in all of them. .

[0004] In the case of rainfall after the roofing material such as a roof tile is constructed, even if rainwater enters the underlaying material, the water is in a "flow" state, and therefore has a relationship with the surface tension. Although water leakage from the staple holes is hardly observed experimentally, when the underlaying material is constructed by the conventional construction method, a water leakage accident often occurs due to rainfall before the overlaying material is constructed.

[0005] The conventional construction method described above, as shown in FIG.
A method in which an underlaying material 2 is attached to a sloped roof 1 from an eaves side A to a ridge side B while forming an overlapping portion 3, and staples 4 are driven into the overlapping portion 3 and an intermediate point 3 a in the width direction of the underlying roofing material 2. It was constructed in. An intermediate point 3a in the width direction of the underlaying material 2
The reason why the staples 4 are also driven is to prevent accidents caused by wind-induced tearing or breakage during work because the strength of a general commercially available underlaying material is low.

[0006]

However, in general underlaying materials used in the conventional construction method, even if there is no breakage, even a hole formed when the staple 4 is used can lead to a water leakage accident in a long rain. Was. Also, when a person rides on the staple-laden underlay material (by carrying or performing the overlay material, etc.), there is a relationship with the temperature, but the underlay material 2 with the weight G of the person is indicated by an arrow a. As a result, the underlaying material 2 may have a tear 5 due to the staples 4 as shown in FIG. 7, and the tear 5 may cause water leakage.

The inventor of the present invention has conducted many years of research and experiments on elucidation of the cause of the water leakage. As a result, the upper portion 3 'of the overlapping portion 3 on the eaves side A is loosened only by the staples 4 and only the slack 6 occurs. No breach, ridge side B
A tear 5 was formed in the descent portion 3 "of the overlapping portion 3 of the underlaying member 3. However, since the tear 5 was covered by the upper portion 3 ', there was no problem of water leakage, and the intermediate point 3a of the underlaying material 2 was stopped. It has been found that the tear 5 caused by the staple 4 causes a water leakage problem when the raindrop 7 is hit directly.

The present invention has been completed based on the above findings, and even if a person gets on a staple-fixed underlaying material before applying a roofing material such as a tile, a tear is formed.
It is an object of the present invention to provide a new method of constructing a roofing material without a problem of water leakage.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method of stapling a roofing material reinforced with a nonwoven fabric by forming an overlap portion on a sloped roof from the eaves side to the ridge side. When performing the stapling, the stapling is performed only on the overlapping portion except for the first row of the eaves portion. That is, the underlaying material reinforced with the nonwoven fabric provides a new construction method in which the staples are driven only in the overlapping portion on the premise that the strength can be sufficiently maintained without driving the staples at the midpoint in the width direction. .

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In the construction of the present invention, first, the first sheet of the underlaying material 11 reinforced with the nonwoven fabric F on the sloped roof 10 is attached to the eaves side A
Staples 12 on the hammer tacker (not shown)
And are driven at intervals of about 10 to 15 cm.

A draining plate 13 such as a galvanized plate is pasted on the eaves side A in advance. Thus, if the first row of the underlaying material 11 is stopped by staples, the second row on the ridge side is pasted while forming the overlapping portion 14, and the staple 12 is attached to the overlapping portion 14 using the hammer tacker. stop. Similarly, the staples 12 are driven into the ridge side B while forming the overlapping portions 14 as in the third and fourth rows.

As the underlaying material 11 reinforced with the nonwoven fabric F, the underlaying material 11 shown in FIG. 2 is obtained by laminating asphalt layers 11b and 11c above and below a core material 11a obtained by impregnating paper with asphalt, and forming sand on the uppermost layer 11d. And / or a paint application layer is provided,
The nonwoven fabric F is provided on the lowermost layer 11e (α type).

The underlaying material 11 shown in FIG. 3 has a core material 11a made of paper, and asphalt layers 11b and 11c
And a top asphalt layer 11b 'is provided on the upper surface of the upper asphalt layer 11b with a nonwoven fabric F interposed therebetween.
A sand and / or paint application layer is provided on 1d and the lowermost layer 11e (β type).

The underlaying material 11 reinforced by the nonwoven fabric F used in the construction method of the present invention is excellent in strength in both the α type and the β type, so that the intermediate point in the width direction does not need to be stopped by the staples 12. Good. That is, even if it is blown by the wind during the construction, it will not be broken, and there will be no break during the work.

After construction according to the construction method of the present invention, as shown in FIG.
When a person's weight G is applied on the underlaying material 11,
Even if the reinforced roofing material 11 is mainly made of asphalt, depending on the temperature, when the weight G of the person is applied, it may be displaced downward in the inclination direction as indicated by the arrow A,
It is not at all possible that the crevices 15 occur as shown in FIG.

That is, the upper part 1 of the overlapping portion 14 on the eaves side A
4 'is not loosened by the staples 12 because only the slack 16 is generated, but the submerged portion 14 "of the overlapping portion 14 is formed.
In some cases, a crack 15 may occur. Since the crevices 15 are always covered by the upper portion 14 ', it has been experimentally confirmed that there is no problem of water leakage even in the case of rain such as a shower.

The underlaying material 11 reinforced with the nonwoven fabric F
It is particularly suitable for softwood plywood, which has recently attracted attention as a base for the sloped roof 10. That is, softwood plywood has holes such as joints and the like, and the surface condition is not smooth but also has waves, and since the hardness of the annual ring portion is different, it is difficult to drive staples uniformly and smoothly. Therefore, in the case of a general commercially available underlaying material, the underlaying material used in the application method of the present application may be broken when stapling.
Then, there is no such accident, and there is no possibility of leading to water leakage.

[0018]

As described above, the method for constructing a roof underlaying material according to the present invention is to stap the underlaying material reinforced with a non-woven fabric by forming an overlap portion from the eaves side to the ridge side on a sloped roof. When performing, the stapling is performed only on the overlapping part except for the first row of the eaves part, so the weight of the person is on the underlaying material after stapling and the underlining material is inclined Even if the gap is displaced downwards or splits, the splits occur only in the infiltration part of the overlapping part and are covered by the upper part, so there is no problem of water leakage even in the case of rain such as showers. This is an excellent effect.

Further, according to the construction method of the present invention, since the construction can be carried out without driving staples at the intermediate point in the width direction of the underlaying material, there is an advantage that the construction time of the underlaying material can be greatly reduced and the construction cost can be reduced. . Therefore, there is a secondary effect that an excellent construction method with high economy can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a state in which an underlaying material is stuck to a sloped roof and stapled.

FIG. 2 is an enlarged cross-sectional view of an α type underlaying material used in the construction method of the present invention.

FIG. 3 is an enlarged cross-sectional view of a β type underlaying material used in the construction method of the present application.

FIG. 4 is a cross-sectional view showing a case where a person's weight is placed on an underlaying material laid by the construction method of the present application.

FIG. 5 is a cross-sectional view showing a state in which a staple portion has a tear due to a weight applied on the underlaying material laid by the construction method of the present application.

FIG. 6 is a cross-sectional view showing a case where a person's weight is placed on an underlaying material laid by a conventional construction method.

FIG. 7 is a cross-sectional view showing a state in which a staple portion is torn by a weight placed on an underlaying material laid by a conventional construction method, and raindrops are directly hitting the staple.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Slope roof 11 Underlay material 11a Core material 11b, 11b ', 11c Asphalt layer 11d Uppermost layer 11e Lowermost layer 12 Staple 13 Draining board such as a tin plate 14 Overlapping part 14' Riding part 14 "Sunk part 15 Split 16 Loose F Non-woven fabric A eaves side B ridge side

Claims (1)

(57) [Claims] 1. An underlaying material reinforced with a non-woven fabric is stapled by attaching an underlaying material to a sloping roof from an eaves side to a ridge side while stapling the stapled parts except for the first row of the eaves part. A method for constructing a roof underlay material, which is performed only on a lap portion.