Increasing insulation value in cathedral ceiling
erikdavitt
| Posted in Green Building Techniques on
For adding a boost to cathedral ceilings I have read about making the rafter space deeper by scabbing down. I have always imagined this parallel with the rafters. I am curious if anybody has tried going perpendicular? My only thought is by doing this you could reduce thermal bridging. I am not a builder so maybe there are barriers to doing this.
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Replies
Erik,
People do it all the time.
Depending on just how much of a boost you are trying to achieve, continuous rigid insulation on the interior (without adding any framing depth) can be an option.
See this GBA Green Home project: https://www.greenbuildingadvisor.com/green-homes/deep-energy-makeover-one-step-at-a-time
Peter