In the same thickness, the density of large insulation effect is good or small density? The same thickness compared with the rock? Please elaborate, thank you! More
1. Perlite is a volcanic eruption of acid lava, the rapid cooling of the vitreous rocks, because of its pearl fracture structure named. Perlite deposits include perlite, obsidian and pine rock. The difference between the three is that the perlite has a circular arc-shaped crack formed by condensation, called perlite structure, water content of 2 to 6%; pine rock has a unique pine resin luster, water content of 6 to 10%; obsidian with glass Gloss and shell-like fracture, water content is generally less than 2%. 2. Foam is a chemical product, the main ingredient is benzene. Polystyrene foam board - also known as foam board, EPS board is made of volatile liquid blowing agent containing polystyrene beads, heated by the preheated in the mold after heating the formation of white objects, its fine The structure of the obturator is mainly used for building wall, roof insulation, composite board insulation, cold storage, air conditioning, vehicle, ship insulation, floor heating, decorative carving and other uses are very extensive. 3. Perlite is generally flame retardant, foam board is a high price of flame retardant, one is not flame retardant cheap, the meaning of flame retardant is not what we think, in fact, that is not going to spread, probably Meaning that it will self-extinguish, leave the fire will automatically extinguish.
B-class product principles are "combustible", B1 level barely be "not flammable." B. B3 level in fact only fame only in their daily lives is already very easy to use the "dry wood" the. Insulation wall materials used in environmental protection is also the most people concerned, Shu Yi Yi new interior wall with environmental protection and other advantages of flame retardant. Can be cold indoor walls to isolate; the middle layer is a special regulation layer. This material is made of chemical fiber composition, with a temperature, heat, scrubbing effect. In the summer heat to prevent the walls of the heat into the room, to achieve the effect of insulation and insulation.
Floor-type steel outside the scaffolding checklist how to fill out
