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I’m the C.M. for a project with a large slate roof. Pitches are 6/12, 12/12, & 16/12. Specs call for vented nailable insulation board (4″) over structural T & G decking. All the vented insulation I can find has 7/16″ OSB as the nailing surface. We’re attaching 12″ x 20″ slates to this. I’m not much of a fan of OSB and I think 7/16″ is pretty thin to hang slates on given the steep pitches we have. Any experiences or opinions would be appreciated.
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Eric,
I would contact Joe Jenkins, Author of "The Slate Roof Bible" at:
[email protected]
he will surely have an opinion.
*Eric,Call AJC Inventsabord at 1-800-808-7487. Their vented board is available with plywood or OSB. The other option is to make your own vented board, the way I do. Build up your insulation to the desired thickness, screw down 1x3 sleepers 16" OC, install the plywood of your choice on the sleepers, and install your roofing over that. Personaly, I prefer screws to hold the sleepers and insulation down much more than nails.Hope this helps, John
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I'm the C.M. for a project with a large slate roof. Pitches are 6/12, 12/12, & 16/12. Specs call for vented nailable insulation board (4") over structural T & G decking. All the vented insulation I can find has 7/16" OSB as the nailing surface. We're attaching 12" x 20" slates to this. I'm not much of a fan of OSB and I think 7/16" is pretty thin to hang slates on given the steep pitches we have. Any experiences or opinions would be appreciated.