1909 kitchen gut. Insulate with Solid foam and worry about vapor?
#1
05-18-14, 03:47 PM
1909 kitchen gut. Insulate with Solid foam and worry about vapor?
Hi all,
I have cold kitchen in my 1909 row home in philly. It's been built above a converted garage so that doesn't help, but additionally, it has two exterior brick walls.
The prior owner did a remodel by laying 2x4s flat against the plaster and lathe, so I'm gutting the exterior walls as well as the pulling the floor up. With the floor, I'm thinking of going to joists, and insulating from above. Then new subfloor, electric floor heater, and then tile on top.
The walls are two layers of brick with a stucco finish on the exterior. The interior of cement brick, and the exterior row is a red brick. If I do 1 or 2 inches of rigid foam on the interior, will I create a Vapor issue?
Also, do I apply the foam over the entire surface, then try and fasten the drywall over top of it? Do i use screws and try and get into the brick? Do I glue it? Do I put firing strips on the brick? Do I put firing strips on the foam?
There are tons more qs. So beware, if you respond, I might just ask a follow up
I have cold kitchen in my 1909 row home in philly. It's been built above a converted garage so that doesn't help, but additionally, it has two exterior brick walls.
The prior owner did a remodel by laying 2x4s flat against the plaster and lathe, so I'm gutting the exterior walls as well as the pulling the floor up. With the floor, I'm thinking of going to joists, and insulating from above. Then new subfloor, electric floor heater, and then tile on top.
The walls are two layers of brick with a stucco finish on the exterior. The interior of cement brick, and the exterior row is a red brick. If I do 1 or 2 inches of rigid foam on the interior, will I create a Vapor issue?
Also, do I apply the foam over the entire surface, then try and fasten the drywall over top of it? Do i use screws and try and get into the brick? Do I glue it? Do I put firing strips on the brick? Do I put firing strips on the foam?
There are tons more qs. So beware, if you respond, I might just ask a follow up
#2
05-18-14, 06:11 PM
I'm not the right guy when it comes to brick houses, we see few up here. But I do have a couple of links that may provide some guidance.
BSD-106: Understanding Vapor Barriers — Building Science Information
BSI-047: Thick as a Brick — Building Science Information
Hope those help.
Bud
BSD-106: Understanding Vapor Barriers — Building Science Information
BSI-047: Thick as a Brick — Building Science Information
Hope those help.
Bud
#3
05-18-14, 06:18 PM
I found this: Insulating Old Brick Buildings | GreenBuildingAdvisor.com
The last paragraph addresses Philly, and says it shouldn't be a problem here. You think this author knows what he's talking about?
The last paragraph addresses Philly, and says it shouldn't be a problem here. You think this author knows what he's talking about?
