Putting on a new Roof

It's *A* correct way to do it, although I suspect that using something thicker than strapping would get you better airflow. (The strapping is running eave-to-ridge, right? not gable-to-gable?)

According to snipped-for-privacy@h2kustom.com :

You need something more substantial than strapping. Especially if you want to insulate.

In a house where they had a T&G cathedral ceiling, they ended up going with 2x8's on edge. 5.5" fiberglass batts on top of the T&G, then

Not that I can think of, no. And it would compress the existing insulation probably more than you want, anyway.

Look at it this way, This is an excellent opportunity to add a 1" layer of urethane foam on TOP of the existing deck. (Foam, then sleepers, then nailable deck.)

I had the *exact* same thing done here at home, they're finishing off the job inside as we speak.

They tore off the planks 3 ft from the bottom and 3 ft from the top, put strapping horizontally, then 2 by 4s onto the existing chevrons effectively raising the roof about 4 inches. Then aspenite, membrane, shingles, and a couple of static ventilators on top, model 301 as shown here:

We're having urethane blown on the inside, about 5.5 inches, so basically the same principle applies: nailing 2 by 4s to the existing structure to give more space, urethane everywhere, gypsum, primer, paint. For the exposed urethane in the storage areas we had this fireproof coating applied. Yuk.

Oh surprise there was never any ventilation from the soffits in front, the existing plywood(!) that blocked them was removed so now we're okay from the soffit right up to the ventilator.

Picture here

If you want more pictures just email back.

Best regards,

Sorry I meant to say exact same problem.