Kory Watson
Contributor

I may indeed do this regardless, as we have 3 roof vents that could ventilate a "mini" attic space.

> I'm concerned with your roof structure. Looks like 1 out of 3 rafters is supported by trusses. Take a look at it from the outside on a ladder. Does...

I'm curious why you wouldn't do foam sealing. Is there not a risk of condensation without a solid air seal?

We just replaced the roof. Adding insulation on top of the sheathing would have been too expensive as we would have needed to re-do all of the fascia.

Did some research on this. How do you seal the underside of the roof? Do you pay a closed cell contractor to spray an inch of foam then fill the rest...

Definitely no way I'd bother with DIY foam. It's nasty stuff.

Do you have ventalation concerns? If I installed rock wool, it would need to be touching the roof sheathing directly. My understanding is that will...

We need to do the insulation inspection, and will close up the walls afterwards with ply. Inspector has OK’d this plan. Drywall for fire recommended...