SIPs for cathedral ceilings are a great match.  Many designs are easy to build and always extremely energy efficient using polyurethane foam core SIPs.   When comparing with rafter construction, SIPs can be more cost effective to install and much more energy efficient. Cathedral ceilings add instant height to a room and can negate the need for 9’ and 10’ tall wall panels.

When planning to use SIPs in roof construction, it is important to note that a roof panel must span from one bearing support to another. Many manufacturers will span up to 16 feet with a single panel.  Spanning the long distance with OSB/OSB panels can cause sagging in roof panels and has been documented in several project using EPS throughout the United States as well as Alaska and some international markets.

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