Which sub-item should be applied when choosing choose suitable composite aluminum foil rubber & plastic thermal insulated pipe?
Since wrapping aluminum foil glass fiber cloth with 40mm rock wool in roof thermal insulation belongs to pipe thermal insulation, you should apply the quota sub-items "Fiber products(pipe skin) installation" , "Glass wool cloth protection layer" and "aluminum foil protection layer" in the fascicle "Oil-painting, anti-corrosion and thermal insulation project" in "Installation quota ".
Rubber & plastic thermal insulated casing pipe should be applied to the corresponding sub-item in "Supplementary quota project" in "Thermal insulation project", which is also the special sub-item. Rubber & plastic thermal insulated casing pipe should be applied to the corresponding quota sub-item in "Rubber & plastic thermal insulated pipe skin" in "Thermal insulation project". If there is no corresponding quota sub-item in "Rubber & plastic thermal insulated pipe skin", the quota sub-item "Thermal insulation of fiber pipe skin" may be an alternative and then you can convert the principal material into "Unit price of rubber & plastic thermal insulated pipe skin".
Quota 11-539—541 rubber & plastic thermal insulated pipe skin is commonly used in pipe thermal insulation while Quota 11-542—546 rubber & plastic thermal insulated pipe applies to pipes with bigger pipe diameter. You can choose according to your requirement. The function of aluminum foil glass fiber cloth is to use thermal insulation materials such as glass wool, rock wool, mineral wool, PET products and rubber & plastic products to insulate heat and moisture. It is widely used in the heat sealing of cotton felt, wool board, wool pipe, PET board pipe and rubber & plastic board pipe, thermal insulation and water insulation of HVAC ducts, cold/warm water pipe, and building thermal insulation to keep the house cool in the summer and warm in the winter.
