What are the environmental concerns of SIPs?
Our major concern is of course the foam core. The panels we use contain either Extruded Polystyrene (XPS) or Isocyanurate (polyurethane or PUR) foam, types of Class I plastic foam. As with any foam plastic product there are environmental concerns and petroleum use. As the foam cores are mostly air, the actual amount of petroleum use is small. On the other hand, when we look at the big picture, we see any possible environmental impact from the production and manufacture of these plastics offset over the life span of our projects. We all need to look at impact & sustainability based on the life-cost of each decision.
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