saidsamir
Do³±czy³: 11 Wrz 2020
Posty: 14
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Separate article is the sound insulation of walls and between floors, floors and studios
8. Foamed glass:
It is an inert material and consists of clear glass that does not contain any bonding materials between its molecules. It is classified from the type of insulating materials with cellular structure and has a density of (140 kg / m3), and its thermal conductivity reaches (0.55 watts / mph) only when A temperature of (20) C, although it has a high porosity of air voids, but it is characterized by high mechanical resistance to fracture, tension, bending and shearing and it is impermeable to water and incombustible and its thermal stability range is between (- 260 ° C) and (+ 430 ° C). It can be used in places whose temperature does not exceed (250 ° C).
Use of heat-insulating materials for surfaces, walls and floors:
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1- The methods used for roof and wall insulation.
Surface insulation:
There are two types of roof insulation systems, the conventional roof system and the upside down system.
In the first type (the traditional system), the waterproofing layer is above the thermal insulation layer (as shown in the figures shown below) to protect the thermal insulation from water, especially the thermal insulation materials in which the water absorption rate is relatively high, and in this system the waterproofing membrane is exposed to water (insulation Water) to the continuous thermal stress resulting from the great variation in temperature levels between night and day and between the different seasons of the year, which leads to the expansion and contraction of this membrane, which makes it lose its elasticity and thus its ability to isolate as a result of drought and cracking that may be caused to it.
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In this system, the waterproofing membrane is subjected to mechanical stress during or after the installation as a result of the presence of some air-conditioning and other devices and maintenance work on the roof of the building and thus the life span of the waterproofing decreases and the maintenance costs increase and in the event that the system fails as a waterproofing, it may lead to serious damage inside the building that is difficult to quantify. As a result of water leakage, and this is in lieu of the damage to the thermal insulation as the water reached it.
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