Does the old roof need to be stripped?
A number of considerations must be analysed in order to answer the above question… Krypton Chemicals has designed a highly adaptable waterproofing resin… Impermax, which is compatible with both PU and Humidity Primers. In the typical of cases there is no need to strip the existing roof. With the aid of the correct primer Impermax totally adheres to the substrate moulding over all fissures, coating with a tight waterproofing membrane. Impermax holds 400% elongation and flex’s to the movement of the roof, while providing a breathable waterproof membrane. To correct accurate installation the substrate must be comprehensively cleaned of all debris and containments. Geomax fleece must be used to cover all fissures and the base of up-stands; due to the light weight nature of this membrane the roofing substrate does not require additional structural support.
