What are the high strength roof insulation boards that can withstand the pressure of fire engines?

Answer:

Fire truck water weight of 20 tons to 40 tons, can have compression insulation board? Why do you ask this question? Fire forces have elevated fire engines, do not have to go up the car, lift arm height, the general city has more than 40 meters of the car

With organic high strength benzene board or foam polyurethane, the intensity is generally 0.3~0.5MPa, the above road layer to do a bit thick (specifically calculated to determine), so that pressure is dispersed. The center also can set some pier from the structure to the pavement, but to consider the heat

You can go through two routes:1, the use of inorganic insulation, such as ceramsite, concrete and so on, the strength can be done very high;