JP2005207050A - External heat insulating structure of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an external heat insulating structure easily and inexpensively constructible on the roof of a concrete building. <P>SOLUTION: A waterproof material is applied onto the surface of a roof skeleton 1 of the concrete building to form waterproof layers 2, 3, and a protective material for protecting the waterproof layers 2, 3 is laid on the upper face of the waterproof material to form a protective layer 4. Further, granular foam glass materials 5 of predetermined size are laid as a heat insulating material on the upper face of the protective material to form a heat insulating layer 6. The foam glass materials 5 spread all over the roof are covered with a scatter preventing member 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an outer heat insulating structure in which a heat insulating material is laid and applied to a building frame, and more particularly to an outer heat insulating structure in which a heat insulating material is laid and applied to a roof frame of a concrete building.

  2. Description of the Related Art Conventionally, an external heat insulating structure has been known in which a heat insulating material is laid on the outside of a building frame to insulate between the building frame and the outside. In this outer heat insulating structure, since the heat insulating material is present outside the building housing, it is possible to eliminate the influence on the housing such as concrete due to the outside air temperature or the irradiation of sunlight. That is, in the summer when the outside air temperature is high, the heat insulating material blocks the outside air temperature and sunlight, so that the housing does not become hot. Therefore, the indoor cooling load can be reduced. On the other hand, in the winter when the outside air temperature is low, the housing is not affected by the outside air temperature due to the heat insulating material and does not become low temperature. Therefore, since the room is warmed according to the temperature, the heating load in the room can be reduced. In addition, since the enclosure does not directly touch the outside air, the enclosure can be protected from severe weather conditions such as wind and rain.

  Therefore, by constructing such an outer heat insulation structure on the rooftop or outer wall of the building, etc., the deterioration of the living environment accompanying the rise in average temperature due to the heat island phenomenon, which is a problem in urban areas, should be improved. Is possible. For example, as an external heat insulating structure, a mortar layer is formed on the outer wall surface of a building by coating or the like, a heat insulating material using foam glass is pasted on the mortar layer, and a tile is formed on the heat insulating material. Etc. (see, for example, Patent Document 1) and those in which a glass foam formed by sintering glass in a foamed state is laid on the roof (for example, see Patent Document 2). Proposed.

JP 2003-227221 A JP 2000-72480 A

  However, in the technique disclosed in Patent Document 1, when an external heat insulating structure is applied to a building, an external heat insulating tile configured integrally with a tile and a heat insulating material is manufactured, and this external heat insulating tile is constructed through a mortar layer. Since it is necessary to attach to the surface of the body of an object, there is a problem that it takes time during construction and costs increase. Moreover, in the technique shown in Patent Document 2, it is only shown that the glass foam is laid on the rooftop for vegetation, and it is clear about the waterproofing structure necessary for securing the construction method and the rooftop durability. This was not sufficient as an outer heat insulating structure.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in claim 1, a waterproof layer is provided on the surface of the roof of a concrete building, and a granular foam glass material having a predetermined size is laid on the waterproof layer to form a heat insulating layer. is there.

  According to a second aspect of the present invention, a protective layer is formed between the waterproof layer and the heat insulating layer.

  In Claim 3, it is comprised so that the said foamed glass material may be covered with the member for scattering prevention.

  According to a fourth aspect of the present invention, a molded member made of a foam glass material is laid on a roof frame together with the foam glass material.

  According to a fifth aspect of the present invention, the foamed glass material is obtained by foaming and firing waste glass.

  As effects of the present invention, the following effects can be obtained.

  In Claim 1, in a concrete building, while being able to acquire the outstanding heat insulation effect, a plant can be nurtured and greening a rooftop, insulating with a heat insulation layer. Therefore, since the housing is hardly affected by the outside air, it is possible to prevent the outside air from becoming hot during the summer and low temperatures during the winter, and to reduce the cooling and heating loads in the room. Furthermore, since the foamed glass material shields the casing and the waterproof layer applied to the casing from the outside air and sunlight, deterioration of the casing and the waterproof layer can be reduced. In addition, the outer heat insulating structure can be applied to the building with a simple operation, and the construction cost can be reduced.

  In Claim 2, a waterproof layer can be protected from the heat insulating material which forms a heat insulation layer.

  According to claim 3, it is possible to prevent the foamed glass material laid on the roof from being scattered by a storm or the like.

  In Claim 4, it is possible to walk on the roof without impairing the heat insulation effect.

  In Claim 5, waste glass can be reused effectively and is environmentally preferable. Moreover, since waste glass is utilized as a glass raw material, cost can be reduced.

Next, embodiments of the invention will be described.
FIG. 1 is a view showing an outer heat insulating structure of the present invention, FIG. 2 is a view showing a state in which a primary waterproof layer is formed on a roof roof, and FIG. 3 is a view showing a state in which a secondary waterproof layer is formed on the primary waterproof layer. 4 is a view showing a state where a waterproof protective layer is formed on the secondary waterproof layer, FIG. 5 is a view showing a state where a heat insulating layer is formed on the protective protective layer, and FIG. 6 is a scattering prevention member on the heat insulating layer. FIG. 7 is a diagram showing a drain port portion provided with a drain port cover, and FIG. 8 is a diagram showing a state where a direction member is provided.

  As shown in FIG. 1, a waterproof material is formed on the surface of a roof structure 1 of a concrete building to form a waterproof layer 2 and 3, and a protective material for protecting the waterproof layer 2 and 3 is laid on the upper surface of the waterproof material. Then, the protective layer 4 is formed, and further, a granular foamed glass material 5, 5... Having a predetermined size is laid as a heat insulating material on the upper surface of the protective material to form the heat insulating layer 6. The outer heat insulation structure is constructed.

  When constructing the outer heat insulating structure, as shown in FIGS. 2 and 3, first, waterproof layers 2 and 3 are provided on the surface of the roof frame 1. The waterproof layers 2 and 3 are composed of a primary waterproof layer 2 and a secondary waterproof layer 3. As shown in FIG. 2, a waterproof material is applied on the surface of the roof housing 1 to form the primary waterproof layer 2. Form.

  As a waterproof material used for forming the primary waterproof layer 2, for example, a generally known permeable concrete modifier is used. When the concrete modifier is applied to the surface of the roof case 1, it penetrates into the surface of the roof case 1 made of concrete and forms the primary waterproof layer 2. In this concrete permeability modifier, in the place where the crack 1a of the roof case 1 is generated, sodium silicate as a main component penetrates into the crack 1a and reacts with various calcium, water and carbon dioxide inside the concrete. Gelates and then becomes a glassy solid, fills the crack 1a and exhibits a waterproof effect. In the place where there is no crack 1a, the concrete permeation modifier keeps the gel state and does not solidify, while preventing cracks again when carbon dioxide enters due to new cracks, etc. Solidifies and retains the waterproof effect.

  Then, another waterproof material is applied to the upper surface of the waterproof material forming the primary waterproof layer 2 to form the secondary waterproof layer 3. As this waterproof material, for example, an acrylic rubber waterproof material having excellent weather resistance is used. The acrylic rubber waterproofing material forms a secondary waterproofing layer 3 on the primary waterproofing layer 2 formed by the concrete permeability modifier, and protects the primary waterproofing layer 2.

  Subsequently, a protective layer 4 is formed by laying a waterproof layer protective material on the upper surface of the waterproof material forming the secondary waterproof layer 3. As this waterproof layer protective material, for example, a non-woven fabric is used, the protective layer 4 is formed on the upper surface of the secondary waterproof layer 3 by this non-woven fabric, and the waterproof layers 2 and 3 are protected from the heat insulating material laid on the waterproof material.

  Next, a heat insulating material is laid on the upper surface of the waterproof protective material forming the waterproof protective layer 4 to form the heat insulating layer 6. As this heat insulating material, a foamed glass material 5 · 5... Which is extremely lightweight and has excellent heat insulating property, air permeability, and water permeability is used. These foamed glass materials 5, 5... Are made of particles of a predetermined size and are foamed in a state having open cells. Then, the granular foamed glass materials 5, 5... Are spread over the protective material so as to form a space between them, and the heat insulating layer 6 is formed by equalizing to a predetermined thickness, preferably 100 to 150 mm. . If the particle size of the foamed glass material 5 · 5 is too small, the gap between the foamed glass materials 5 · 5 ················ If it is too large, the voids become large and the strength of the heat insulating layer 6 decreases, so the average particle size is preferably 5 to 15 mm.

  The foamed glass material 5 · 5... Is produced by foaming and firing waste glass such as a glass bottle or a glass plate and crushing the fired glass. That is, by using the waste glass collected as a waste product, the raw material cost is reduced, and the glass is effectively reused, which is environmentally preferable. In particular, the foam glass material 5 · 5... Is not specified in the color of the raw glass, so when the waste glass is used as the foam glass material 5 · 5..., The waste glass colored in various colors is colored. Can be used without sorting, and can also reduce the work of recycling waste glass. In addition, it is not always necessary to use waste glass as the raw material of the foamed glass material 5, 5..., Virgin raw material or a material obtained by adding waste glass to the virgin raw material can be used.

  In this way, it is possible to obtain an excellent heat insulation effect by laying the foamed glass material 5 · 5... On the roof of the concrete building, and to plant the plant while insulating with the heat insulating layer 6 to green the roof. it can. Therefore, since the housing 1 is hardly affected by the outside air, it can be prevented that the outside air becomes hot in the summer and low in the winter, and the cooling and heating loads in the room can be reduced. Further, since the foamed glass material 5, 5... Shields the casing 1 and the waterproof layers 2 and 3 applied to the casing 1 from the outside air and sunlight, the deterioration of the casing 1 and the waterproof layers 2 and 3 can be reduced. it can. In addition, the outer heat insulating structure can be applied to the building with a simple operation, and the construction cost can be reduced.

  Next, the scattering prevention member 7 is provided on the heat insulating material made of the foamed glass material 5, 5... Laid on the roof frame 1 as described above. Since the foamed glass materials 5, 5... Have a small specific gravity, they may be scattered from the rooftop by a storm or the like. Therefore, as the scattering prevention member 7, for example, a foam glass material 5,... Is covered with a net made of stainless steel or synthetic resin to prevent the foam glass material 5,. In addition, when the area which laid the foamed glass material 5,5 ... is large, the member 7 for scattering prevention is fixed reliably by providing an anchor.

  Moreover, the drain outlet cover 8 which covers the drain outlet 1b is provided in the drain outlet 1b part (FIG. 7) provided in the roof top frame 1. FIG. This drain outlet cover 8 is a cross-sectional side view by bonding the glass foam materials 11, 11... Of the same quality as the heat insulating material (foam glass materials 5, 5,...) With a binder so that a gap is formed between them. It is formed in a substantially inverted U shape, and is disposed on a protective material that protects the waterproof layers 2 and 3 formed around the drain port 1b, and covers the drain port 1b. In this way, also in the discharge port 1b part, since the drain port cover 8 plays a role as a heat insulation layer, the heat insulation effect in the roof case 1 is not impaired. Furthermore, since the drainage port cover 8 can shut off the drainage port 1b and the foamed glass material 5, 5... Spread around the drainage port 1b, the foamed glass material flows into the drainage port 1b. This can prevent clogging of drainage.

  In addition, when the foamed glass material 5 · 5 ··· is laid on the entire roof as described above, the foamed glass material 5 · 5 ··· is destroyed when it is stepped on, and the heat insulation effect is impaired. The problem of not being able to occur. Therefore, the walking member 9 can be laid at an arbitrary position on the roof frame 1 so as to be able to walk on the roof provided with the outer heat insulating structure without impairing the heat insulating effect. The walking member 9 is manufactured by bonding the foam glass materials 12, 12,... Of the same quality as the glass foam member with a binder so that a gap is formed therebetween, and forming the entire shape into a substantially rectangular parallelepiped (for example, JP, 2003-27407, A). In addition, the member 9 for a walk is not specifically limited, What is provided with the heat insulation structure may be sufficient. And the walking path is formed by arbitrarily laying on the protective material that protects the waterproof layers 2 and 3 between the foamed glass materials 5 and 5. To do. Also in this case, since the walking member 9 serves as a heat insulating layer on the protective layer 4, it is possible to walk on the roof without impairing the heat insulating effect.

The figure which shows the outer heat insulation structure of this invention. The figure which shows the state which formed the primary waterproof layer on the roof top frame. The figure which shows the state which formed the secondary waterproof layer on the primary waterproof layer. The figure which shows the state which formed the waterproof protective layer on the secondary waterproof layer. The figure which shows the state which formed the heat insulation layer on the prevention protective layer. The figure which shows the state which provided the prevention member for scattering on the heat insulation layer. The figure which shows the drain port part which arrange | positioned the drain port cover. The figure which shows the state which has arrange | positioned the member for directions.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roof frame 2 Primary waterproof layer 3 Secondary waterproof layer 4 Protective layer 5 Foamed glass material 6 Thermal insulation layer 7 Spattering prevention member 8 Drain outlet cover 9 Walking member

Claims (5)

  A heat insulating layer is formed by providing a waterproof layer on the surface of a roof structure of a concrete building, and laying a granular foam glass material having a predetermined size on the waterproof layer to form an outer heat insulating material for the building Construction.   The external heat insulating structure for a building according to claim 1, wherein a protective layer is formed between the waterproof layer and the heat insulating layer.   The external heat insulating structure for a building according to claim 1 or 2, wherein the foamed glass material is configured to be covered with a scattering prevention member.   The exterior heat insulating structure for a building according to any one of claims 1 to 3, wherein a molded member made of a foam glass material is laid on a roof frame together with the foam glass material. The external heat insulating structure for a building according to any one of claims 1 to 4, wherein the foamed glass material is obtained by foaming and firing waste glass.

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