JPH05287856A - Sound insulating and heat insulating roof panel - Google Patents

Abstract

PURPOSE:To substantially enhance the sound insulating property by providing a vibration control steel plate for converting vibration energy into heat energy as a surface plate, and packing the space between the vibration control steel plate and a metal outer plate on the back side with a heat insulating material. CONSTITUTION:An intermediate resin layer (c) is interposed between metal plates (b) to form a confined type, and thus to form a surface plate, namely, a vibration control steel plate B for converting vibration energy into heat energy. Then, plural projected parts 3 are roll-molded across the width of the vibration control steel plate B to form a corrugated cross-section. Further, the space between the vibration control steel plate B and a nearly flat metal outer plate 1 is filled with a heat insulating member 2 made of foaming synthetic resin to form a roof panel A. Thus, the generation of sound due to collision of rain can be effectively restricted, and noise due to rain splash can be remarkably restricted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation and heat insulating roof panel, and more particularly to a technique for significantly improving sound insulation in addition to heat insulation.

[0002]

2. Description of the Related Art Conventionally, in order to provide heat insulation in a roof panel, a foam synthetic resin is foam-filled and interposed as a heat insulating material between the front and back metal skins.

[0003]

However, in such a structure, the heat insulating property can be enhanced by the foamed synthetic resin body, but a metal skin plate is used on the surface side of the roof panel, In this metal skin plate, the sound of raindrops, hail, and the like when raining echoes to the inside of the room and becomes noise. And, it is possible to suppress the propagation of such rain sound with the foamed synthetic resin body for heat insulation to enhance the soundproof function, but it does not reach a sufficient sound insulation function, and it is necessary to make the sound insulation function sufficient. In addition, it is necessary to increase the thickness of the foamed synthetic resin body and to mix sound-insulating materials such as mixing metal powder into the foamed synthetic resin, but there is a problem that it is difficult to achieve a sufficient sound-insulating function. .

The present invention has been made in view of the above problems, and an object thereof is to provide sufficient sound insulation without increasing the thickness of a foamed synthetic resin body as a heat insulating material or changing its composition. There is a need to provide a sound insulation and heat insulating roof panel that can obtain the function and suppress the noise caused by rain and the like.

[0005]

According to the present invention, a damping steel plate B for converting vibration energy into heat energy is used as a skin plate,
A heat insulating material 2 is provided between the damping steel plate B and the metal skin plate 1 on the back surface.
It is characterized by being filled with.

[0006]

[Function] The vibration energy due to the collision of rain or hail on the damping steel plate B on the roof surface collides with the damping steel plate B is converted into thermal energy, and the sound is effectively generated when the rain collides. To significantly reduce noise caused by rain.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings. The sound-insulating and heat-insulating roof panel A of the present invention uses, as a skin plate, a vibration-damping steel plate B constrained by interposing an intermediate resin layer c between the metal plates b, b. 1 and the heat insulating material 2 is filled between them.

The vibration damping capability of the vibration-damping steel plate B is generated by conversion of vibration energy into heat energy due to shear deformation of the intermediate resin layer c during bending vibration. The viscoelastic material used for the intermediate resin layer c has so-called rheological characteristics in which the mechanical characteristics change with temperature, and exhibits a remarkable vibration damping ability in the temperature range from the glass state to the rubber state (glass transfer). To do. For the intermediate resin layer c, generally, a thermoplastic polymer material such as vinyl acetate type, polyisobutylene type, acrylic modified polyethylene type, polyurethane rubber type is used. The intermediate resin layer c determines not only the damping characteristics of the damping steel plate B but also the formability, and the metal plate b having excellent forming characteristics can be used for high-level roll forming. , B (steel plates) and an intermediate resin layer c having a high rigidity are used. The metal plates b, b may have different thicknesses so that roll forming is easy. As the steel plate used for the vibration damping steel plate B, a cold rolled steel plate, a hot dip galvanized steel plate, an electrogalvanized steel plate, a coated steel plate or the like is used. Then, the stainless steel plate may be used on one side or both sides.

A plurality of ridges 3 are roll-formed in the width direction on the vibration-damping steel plate B in the embodiment to have a corrugated cross-section. Between the damping steel plate B and the substantially flat metal skin plate 1, a foamable synthetic resin material such as hard polyurethane or polyisocyanurate in which a polyol, an isocyanate, a catalyst, a foaming agent and the like are mixed is injected and foamed to be a heat insulating material. Two
To form a sound insulation and heat insulating roof panel A.

As shown in FIG. 1, only the damping steel plate B is extended to the widthwise end of the sound insulating and heat insulating roof panel A, and the extension 6 has the same shape as the ridge 6. The connecting ridge 4 is formed, and the recess 5 is formed on the back surface side.
A convex portion 6 is formed on the back surface side of the other end of the sound insulating and heat insulating roof panel A in the width direction. Then, the connecting ridges 4 are overlapped and connected to the ridges 6 at the ends of the adjacent sound-insulating heat-insulating roof panel A,
Further, the convex portion 6 is connected to the concave portion 5. In FIG. 2, 14 is a cushion material.

In the sound insulation and heat insulating roof panel A, however, the vibration energy due to the collision of rain or the like on the vibration damping steel plate B on the roof surface is collided with the vibration damping steel plate B, and the rain or the like collides. It effectively suppresses the generation of sound when it does, and significantly suppresses noise caused by rain. As shown in FIG. 3, only the damping steel plate B is extended at the end of the sound insulating and heat insulating roof panel A in the length direction, and the connecting piece 7 is connected to the sound insulating and heat insulating roof panel A in the lower stage (eave side). Is connected to the upper part (ridge side) of the. The damping steel plate B has an intermediate resin layer c on the surface of the metal plate b.
There is also a non-restraining type in which a metal plate b is used such that the metal plate b is on the front surface side and the intermediate resin layer c is on the back surface side. The intermediate resin layer c is used as a packing material to improve the water honey at the connection point. In FIG. 3, 15 is a tight frame and 16 is a waterproof band.

FIG. 4 shows a noise test apparatus, in which a water sprinkler 8 is arranged above the roof, various roofing materials are laid on the roof, and an indicator sound level meter 10 is provided inside a test house 9. The noise was measured through the octave analyzer 11 and the level recorder 12. In FIG. 4, a = 1.800, b =
2.500, c = 300, d = 1.500 mm.
Inside the test house 9, a sound absorbing material 13 such as soft urethane foam is stretched on the inner surface and the ground. The results shown in Table 1 below were obtained.

[0013]

[Table 1]

The unit in the above table is dB. The normal panel has a heat insulating material filled between the metal skins 1 and 1. The A characteristic is a characteristic obtained by converting the measured value into human hearing, and the C characteristic is an approximate value of an actual sound pressure level value. The background noise is the noise when there is no factor that directly acts on the sound insulation and heat insulating roof panel.

A graph of the above results is shown in FIG. AP (A) in FIG. 5 is an integrated value of the respective measurement points. Thus, it can be seen that the sound insulation and heat insulating roof panel A using the vibration damping steel plate B has excellent sound insulation. FIG. 6 shows another embodiment of the vibration damping steel plate B.
An unconstrained type in which an intermediate resin layer c is laminated on the back surface of the metal plate b is used, and a soft sheet 17 is laminated on the back surface of the intermediate resin layer c to be joined to the heat insulating material 2. . FIG. 7 shows still another embodiment, which is a damping steel plate B.
As the non-restraining type, an intermediate resin layer c is laminated on the back surface of the metal plate b, and the heat insulating material 2 is bonded to the intermediate resin layer c.

The shape and form of the sound insulation and heat insulating roof panel A can be variously modified including the connection form.

[0017]

As described above, according to the present invention, the damping steel plate for converting the vibration energy into the heat energy is used as the skin plate, and the heat insulating material is filled between the damping steel plate and the metal skin plate on the back surface. Without changing the composition so that the heat insulating material has a sound insulation function, the vibration energy due to the collision of the rain colliding with the vibration damping steel plate on the roof surface is converted into heat energy, and the rain collides with it. In this case, there is an advantage that the generation of sound can be effectively suppressed and the noise caused by the rain sound can be significantly suppressed.

[Brief description of drawings]

1A is a sectional view of an embodiment of the present invention, and FIG. 1B is a partially enlarged sectional view.

FIG. 2 is a cross-sectional view showing a connection state in the width direction of the above.

FIG. 3 is a perspective view showing a connection state in the direction of the eaves of the above.

FIG. 4 is an explanatory diagram of the above noise measuring device.

FIG. 5 is a graph showing the measurement results of the above.

FIG. 6 is a partial cross-sectional view of another embodiment of the above.

FIG. 7 is a partial cross-sectional view of still another embodiment of the same.

[Explanation of symbols]

 1 Metal skin 2 Insulation

Claims (1)

[Claims] 1. A sound-insulating and insulating roof characterized in that a vibration-damping steel plate for converting vibration energy into heat energy is used as a skin plate, and a heat-insulating material is filled between the vibration-damping steel plate and a metal skin plate on the back surface. panel.