JPS595708B2 - roof underlayment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In the present invention, a bituminous material 4 is applied to the upper surface 3 of the insulation material 2 that contacts the metal roofing material 1 such as a galvanized iron plate, and a waterproofing material is applied to the lower surface 6 of the insulation material 2 on the side of the roofing board 5. The present invention relates to a roof base material characterized in that it is made by pasting 7.

In the conventional example, the waterproofness of the insulation material of the roof base material was insufficient, so rainwater and indoor moisture penetrated into the insulation material, reducing the insulation effect. However, since it does not adhere tightly to the metal roofing material, it has the disadvantage that the metal roofing material vibrates and generates noise when it rains, and it cannot protect the back side of the metal roofing material.

The present invention was made in view of the drawbacks of the conventional example, and
The first object of the present invention is to provide a roof base material with excellent waterproofness, and the second object is to protect the back side of the metal roofing material and at the same time prevent vibrations caused by rainwater on the metal roofing material even when it rains. The objective is to provide a roofing material that can reduce noise and prevent noise.

The present invention will be described in detail below according to examples.

The heat insulating material 2 is made of rock wool or glass cool, and a bituminous material 4 is applied to the upper surface 3 of the heat insulating material 2, and the bituminous material 4 uniformly permeates only the upper surface 3 of the heat insulating material 2 and hardens.

The bituminous material 4 is, for example, asphalt, coal tar, rubber asphalt, or a mixture or compound thereof.

The waterproofing material 7 is in the form of a sheet and is made of asphalt or synthetic resin.
It is attached to the lower surface 6 of the holder with adhesive.

Then, the waterproofing material 7 of the roof base material A is pasted, and the roof base material A is laid on the roof board 5 with the side facing down without any gaps.
Next, metal roofing material 1 such as a galvanized iron plate is placed on roof base material A.
Lay down.

When the metal roofing material 1 is exposed to direct sunlight and becomes high temperature, the bituminous material 5 of the roof base material A melts due to the heat and adheres to the back surface of the metal roofing material 1.

On days when the temperature is low, such as on rainy days, bituminous materials 5
is solidified, the bituminous material 5 acts as if it were an adhesive, and the roof base material A comes to be in close contact with the back surface of the metal roof material 1.

If the roof base material A is in close contact with the back side of the metal roofing material 1 in this way and it rains, the metal roofing material 1 will be damaged by the rain.
This suppresses vibrations and prevents noise caused by rain.

In addition, as the waterproof material 7, for example, vinyl chloride, polyethylene,
If thermoplastic resin such as polypropylene is used, the moisture-proofing effect is perfect, and Tafelt, asphalt felt,
If a moisture-absorbing waterproof sheet such as paper, cloth, or non-woven fabric is used, there will be no condensation between the roof base material A and the roofing board 5 due to its humidity control effect, and if aluminum foil or aluminum vapor-deposited sheet is used, heat will be prevented. Due to the reflection effect, heat generated from the room can be prevented from being transmitted to the metal roofing material 1 side, and dew condensation will not occur between the metal roofing material 1 and the roof base material A.

In the present invention, the bituminous material is applied to the upper surface of the insulation material, and the waterproof material is attached to the lower surface, so that the insulation material is protected against moisture from rainwater that has entered through the metal roofing material and humidity inside the room. but,
It has the advantage of not being repelled by bituminous materials or waterproofing materials and penetrating into the insulation material, and not damaging the insulation young of the insulation material. Since the metal roof is coated with a substance, when the metal roof gets heated by direct sunlight, the bituminous substance melts and adheres to the back side of the metal roofing material, and when it rains, this bituminous substance hardens and acts as if it were an adhesive. As a result, since the metal roofing material and the roof base material are integrated, the vibration of the metal roofing material due to rain is reduced, and there is an advantage that noise caused by rain sound can be prevented even though metal roofing material is used. In addition to this, there is the advantage that the back side of the metal roofing material is protected from rust because the bituminous material adheres to the back side of the metal roofing material.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention in a laid state, and Fig. 2 is a longitudinal sectional view of the same as above, in which 1 is a metal roofing material, 2 is a heat insulating material, and 3
4 is the top surface, 4 is the bituminous material, 5 is the roof board, 6 is the bottom surface, and 7 is the waterproof material.

Claims (1)

[Claims] 1. A roof base material characterized by coating a bituminous material on the upper surface of a heat insulating material that comes into contact with a metal roofing material such as a galvanized iron board, and pasting a waterproofing material on the lower surface of the heat insulating material on the roof board side.