Insulating Outside Brick Wall

the article that stickerhappy posted is a great one. there’s no one-size-fits-all solution and you do risk moisture problems so it’s best to make sure that your pointing is tight.

Guest User | 8 years and 3 months ago

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ditmarsman | 8 years and 3 months ago

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Hi everyone, I have searched quite a bit and there seems to be mixed thoughts on how to best handle insulating exterior brick walls from the interior.

Some say to spray foam the brick from the inside, others say don’t do it, will cause moisture problems. Some people say there needs to be a separation between the interior wall and the outside brick, so any moisture can drain down that wall.

So I was curious if anyone here has actually done any sort of insulation on their outside wall from the inside, and how it has worked out for you? I’ve already insulated the roof, but the street facing rooms are still much colder than the rest of the building
thanks all

randolph | 8 years and 3 months ago

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there are 2 types of spray foam insulation, what you want is closed cell. read about it here

https://www.thomasnet.com/articles/plastics-rubber/closed-cell-open-cell/

bliz | 8 years and 3 months ago

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We framed and insulated a wall inside our brick exterior wall. For most of the walls, especially on the garden level where the brick is in ground contact we left a 1″ gap between wall and brick. We insulated with Roxul. If there are windows you have to extend the jambs. If you’re going to use spray foam I assume you will still have to frame a wall on the inside to hang your sheet rock.

stickerhappy | 8 years and 3 months ago

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I’ve done some reading on this and found this article to be helpful…

http://www.greenbuildingadvisor.com/blogs/dept/musings/insulating-old-brick-buildings

ditmarsman | 8 years and 3 months ago

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Thanks, bumping it back up in hopes to hear experiences from others that have already done this. I’m leaning towards ripping out the current wall and spraying with closed cell foam.

Guest User | 8 years and 3 months ago

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the article that stickerhappy posted is a great one. there’s no one-size-fits-all solution and you do risk moisture problems so it’s best to make sure that your pointing is tight.