What kinds of insulation materials are there for flat roofs?

1, expanded polystyrene board (EPS board), thermal conductivity of 0.038-0.04 1, good thermal insulation effect, low price and slightly poor strength.

2. Extruded polystyrene board (XPS board) has a thermal conductivity of 0.028-0.03, good thermal insulation effect, high strength, moisture resistance and high price, and the surface needs to be treated during construction.

3, rock wool board, thermal conductivity of 0.04 1-0.045, fireproof, flame retardant, high hygroscopicity and poor thermal insulation effect.

4. The thermal conductivity of rubber powder polystyrene particle thermal insulation slurry is 0.057-0.06, which has good flame retardancy, waste recycling, unsatisfactory thermal insulation effect and high construction requirements.

5, polyurethane foam material, thermal conductivity of 0.025-0.028, good waterproof, good thermal insulation effect, high strength and high price.

6, perlite and other slurry, thermal conductivity of 0.07-0.09, good fire resistance, poor high temperature insulation effect, high water absorption.

New roof insulation material

Polyurethane rigid foam: Polyurethane rigid foam is a kind of low-density microcellular foam material with closed cell structure, which has low thermal conductivity, good thermal insulation performance, low water absorption and convenient construction and operation. Can work on any complex structure.

Thermal insulation layer of polystyrene board: polystyrene board is a roof board made of cement and broken polystyrene foam. The polystyrene board is located between the fine stone concrete surface layer and the waterproof layer, which not only has the function of thermal insulation, but also has the function of isolation layer to prevent the waterproof layer from cracking when the fine stone concrete surface layer expands with heat and contracts with cold.

FS cement and fly ash thermal insulation roof: FS thermal insulation material is made of fly ash, sulphoaluminate cement, foam stabilizer and foaming agent by casting and foaming at normal temperature and pressure. Its environmental protection and comprehensive utilization are good. FS thermal insulation material has good thermal insulation performance because of its low density and low thermal conductivity.

FB new composite roof panel: FB new composite roof panel integrates many functions such as light weight, heat preservation, heat insulation and waterproof. And the construction efficiency is improved.