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Exterior Wall on Slab

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Posted by: from Calgary
5/25/2013 at 12:00:10 AM

I purchased a older house late last year and have been working on the renos. The house was lifted in the mid 70's to put in a new basement, and I believe it was at the same time they enclosed the space between the house and the garage, making it part of the house.

The exterior walls are just on the surface of the cement slab and I'm looking at changing the door layout so am looking at rebuilding the walls to accomodate this, and will go to 2x6 framing to increase the insulation value.

Question is how do you go about sealing the space between the 2x6 and the cement to ensure no water is getting in? There is no difference in height from inside to outside.

REPLIES (2)
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Date/Time5/25/2013 at 2:13:47 AM

If I understand this wright then you have to cut the cement so the door can sit properlly at the base and plus u have to have 1 1/2 inch height from the slab to the bottom base of your door frame. Blue skin and Tyvek is used to dress the opening before inserting your door in place. Most doors have a metal or aluminum foot base with a 15 dagree slope towards the outside of entrance. Or you have to add slab to 8 inch wide at the foot of opening.

I hope this works.

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Date/Time5/26/2013 at 5:26:07 PM

You have to change the height differance between outside and inside. You can waterproof all you want, but with snow build up, rain run off and the multiple spring thaws you get. Water will get in if outside and inside are the same level. If you can't lower the outside with a very good slope away from the house.

Since your rebuilding the walls anyway, pour more concrete to raise the floor level. If you solve the source of the problem, instead of a patch, you don't have to worry about it.

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