1910 Victorian Insulation without Sheathing

Hello, I've been perusing the site quite a bit since I began the renovation of my parent's old Victorian house. The premise is my girlfriend and I will be moving into…

Balloon framing insulation

Redoing a 20'sone story house with balloon framing. No wrb or even tar paper behind the wood clapboards. no excessive damage to outer boards. I would like to  insulate the…

Insulation and WRB advice in California Zone 2 (Also considered Zone 4b)

Hi, we lost our home in a wildfire and are finally rebuilding our hopefully forever home, which is going to be on a tight budget and almost entirely a DIY…

Window Frame

Climate zone 7A.I have a building, that because of spatial separation issues, has several windows that require a 45min fire resistance rating. This means they are a specialized product, and…

Cathedral ceiling, maximizing my insulation, air sealing, and options for electrical.

Looking for confirmation of the best options to both re-insulate and air seal a 1980’s timber structure cottage roof/ceiling factoring in some recessed lighting/electrical.  I’m in zone 6 (north of…

Antique Rubble Wall Basement Treatment

Hi, We are just finishing renovating and adding onto a 1880 vintage house on the coast of Maine. We have a new 6’ basement and a new 4’ crawlspace. Both of…

Replace the roof before insulating roof rafters with spray foam?

I am just about to make my vented attic, unvented, i.e. raise the thermal barrier to the roof.  I plan to use 2” of closed cell spray foam next to…

Continuous Exterior Insualation

Hello,Location - Ottawa, Ontario, CanadaI am starting a new build shortly and require continuous exterior insulation based on our heating choice of a interior air handler and heat pump. I…

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Gothic arch cabin, roof/wall layers?

Hello,I plan on building a 20ft x28ft gothic arch cabin in two years. Imagine the building like a A-frame cabin, only with a ballooned/curved roof/wall. My plan is to install 3x6…