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Modified
bitumen roofing systems used in Canada incorporating PlastiSpan
insulation board have been engineered to provide optimum performance
in Canada's harsh climate. This type of system is suitable for
either new or maintenance roofing applications.
The popularity of modified bitumen roofing
systems is increasing as more building designers and specifiers
begin to specify these types of systems. Engineered modified
bitumen roofing membranes originated in Europe in the mid
1960's and have been used successfully in Canada and the United
States since approximately 1975.
Modified bitumen membranes are most commonly
attached in the following manner:
· Mopped with hot asphalt.
· Torched on.
When using these methods, a protection board over the top
surface of the insulation board must be included in order
to avoid damage to the insulation board. Various modified
bitumen roof assemblies incorporating PlastiSpan insulation
board have been tested for compliance with requirements for
fire rated roof assemblies.
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To view the design manual document on Modified Bitumen, click here.
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