ON-DEMAND WEBINAR
Impact of Material Dimensional Stability on Conventional Roof Performance
Did you know that the wrinkling observed on SBS-modified bitumen roofing membranes is often due to the type of insulation used underneath?
Indeed, this type of wrinkling is often related to the presence of expanded polystyrene insulation under the membrane in conventional roof assemblies. In such installations, the insulation can be exposed to high temperatures, so high that gaps can appear between the insulation panels, and between the insulation panels and parapets.
Watch this webinar explaining in detail the connection between the wrinkling of roof membranes and the dimensional stability of materials, written by Jun Tatara and Lorne Ricketts of RDH Building Science, Inc.
WHAT IS THIS WEBINAR ABOUT?
- Understand the difference between thermal expansion and dimensional stability
- Recognize that different roof insulation types exhibit different levels of dimensional stability
- Know that instability of insulation can lead to permanent deformation of the roof membrane
*This research was presented at the 15th Canadian Conference on Building Science and Technology in Vancouver in November 2017, as well as at the RCI International Convention in Houston in March 2018.
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