Wall construction for 5,000 sq. ft. full masonry home in Chicago
I am a homebuilder and I am about to start framing next week on a 5000 SF home. I am looking to build the home as efficiently as possible while staying within my clients budget.
This is what I am planning so far:
Exterior Walls: 2×6 Exterior Walls with 1/2″ OSB exterior Sheathing and 2″ Ridgid Foam Exterior Sheathing
Question: How does the 2″ rigid foam work with a full masonry exterior? Would I hold my 2×6 walls 2″ in from the rim board to have the foam sitting on top of the floor and flush with the rim board?
Insulation: Blown-in Cellulose insulation in stud cavaties
Question: Should I consider 1″ of spray-foam for air sealing and then cellulose on top of it?
Foundation Insulation: 2″ rigid foam under basement slab floor, 2″ rigid foam on interior of 9′ basement walls.
This home has a 18′ deep wall under the basement for a basketball court. The wall is 16″ thick poured concrete.
Question: would 2″ rigid foam insulation on the exterior of the foundation be advisable here?
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