Spec my garage roof Home › Forum › Chat Forum › Spec my garage roof Viewing 4 posts - 1 through 4 (of 4 total) Spec my garage roof qwertyMember So, my walls are up and its now in need of a roof. It looks like this approx 7.3 x 3.8 mtrs. I’m thinking of wooden joists and noggins, either hung off joist hangers or sat on top. I like the sound of a warm roof as it avoids venting it. Current thoughts are: joists, 18mm WBP, insulation board (?which one), Roofing sheets (? which but some kinda profiled type). Simple, cheap & durable are all preferred. I’m no expert, so i’d be interested to hear anyones experiences/advice/opinions. Ta Posted 5 years ago jag61Member Qwerty put a warm roof onto ext in the “summer” dpm over ex felt 120mm pir ins off ebay 18mm osb3 fixed thru to ex deck hdpm single sheet glued on top, looks good. And is diyable.look into diynot forums for some good info on similar jobs . John Posted 5 years ago jag61Member Reread op Also a lot of profiled and insulated sheeting on ebay only ever seen it used on large roofs on warehouse type stuff but might be good for you ? Posted 5 years ago qwertyMember . Posted 5 years ago Viewing 4 posts - 1 through 4 (of 4 total) The topic ‘Spec my garage roof’ is closed to new replies.