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Abstract
This technical guide is intended for specifiers and installers of SOPREMA roofing materials solely for information purposes, in an effort to help them in the design and partial reconstruction of existing roofs. SOPREMA believes that the owner or the professional representing the owner is responsible for deciding on whether or not to repair a roof’s waterproofing system. This decision must be informed, as the Canadian Roofing Contractors’ Association (CRCA) recommends in volume 43 of its technical bulletin: ‘’The decision to repair a modified bitumen roof should, as with every type of roofing system, be made only after careful thought and should be based primarily on performance consequences. Open seams, fishmouths at laps, large unbonded areas of the membrane and areas where overheating has resulted in distortion to the reinforcing should be corrected as soon as possible. Trivial anomalies, on the other hand, such as minor wrinkling and ridging are to be expected as a function of the physical characteristics of these materials and their required application methods. Patching a minor blister or a small wrinkle because of visual impact alone is not justified and, in most cases, the repairs will look far worse than the blemish they were intended to correct.
This technical guide is intended for specifiers and installers of SOPREMA roofing materials solely for information purposes, in an effort to help them in the design and partial reconstruction of existing roofs. SOPREMA believes that the owner or the professional representing the owner is responsible for deciding on whether or not to repair a roof’s waterproofing system. This decision must be informed, as the Canadian Roofing Contractors’ Association (CRCA) recommends in volume 43 of its technical bulletin: ‘’The decision to repair a modified bitumen roof should, as with every type of roofing system, be made only after careful thought and should be based primarily on performance consequences. Open seams, fishmouths at laps, large unbonded areas of the membrane and areas where overheating has resulted in distortion to the reinforcing should be corrected as soon as possible. Trivial anomalies, on the other hand, such as minor wrinkling and ridging are to be expected as a function of the physical characteristics of these materials and their required application methods. Patching a minor blister or a small wrinkle because of visual impact alone is not justified and, in most cases, the repairs will look far worse than the blemish they were intended to correct.
Date
11/2020
11/2020
Author(s)
Page(s)
1-28
1-28
Source
Soprema
Soprema
Keyword(s)
Inspection; metal; flashings; membranes; roofing; system
Inspection; metal; flashings; membranes; roofing; system