I would like to replace the shingles with metal roofing on my older Panabode cottage
I plan to install nailbase and new metal roofing on my log home.
I found this answer provided to a similar earlier question:
“Before reading your question, I had never heard of Pan-Abode homes. (For GBA readers who are curious, Pan-Abode is the name of a Canadian company that sells kits for building log homes — specifically, log homes made from milled logs.) To improve the R-value of your roof assembly, you can add insulation on the interior and then install a new ceiling, or you can add insulation on top of your roof deck and then add new roofing. Since you are planning to add new roofing, it sounds like it would be easiest to install rigid foam insulation on top of the existing roof sheathing, followed by a new layer of roof sheathing (or strapping) and new metal roofing. Another option is to install nailbase (a sandwich of rigid foam and OSB, like a SIP with OSB on only one side).”
I like the idea of installing nailbase, but have a related question. The roof of the cottage is tongue and groove 2″x6″ cedar. I assume I would have the OSB on top and screw the metal roofing to that. How would I attach the foam to the 2″x6″ cedar ceiling? Would adhesive be sufficient?
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