... diameter of bubble : 6mm,10mm,12mm,20mm,25mm features : clean ,lightweight , easy to cut ,quick and easy to install ,store, and ... handle ,environment friendly usage : It is widely used as construction material, such as roofs, floors ... and can raise working efficiency. Pliability No cracking. Durability It will not degrade over time. Mold and mildew No growth Linear shrinkage ...