Foam board installation


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Old 01-19-07, 10:36 AM
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Foam board installation

My project to start doing the basement finishing is getting very close. As you may know from previous post it is below grade, I live in CT.

I will be placing the Foamular 250 foam boards (maybe 3/4") right against the concrete foundation walls and looking for tips from someone that went through this process already.

Tips, be aware, to-do, not-to-do and any other info or problems that others could share so I am prepared.

One section of the basement: joists going parallel, the other section joists going perpendicular.

5'9" from floor to joists. Foam boards 2x8

Thanks all.
 
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Old 01-19-07, 10:35 PM
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I'm just about at that stage of my basement finish. Foamular 250 and all.

I have my top and bottom plates up. The Foamular and DAP panel and foam adhesive.

Here's my plan. I'm going to cut to length all of the studs for a section of wall and number them so they're ready to go. I'll also have all of the Foamular cut and ready to go.

After applying the adhesive and putting the foam on the wall I'll pull it off for a minute to let it vent. I'll probably put up 4 or 5 pieces at once.

Next I'll put the studs up and use some temporary shims between the studs and foam to hold the foam tight against the wall until the adhesive sets. I've also tested just leaning some uncut 2x4's against the foam to push the foam into the wall. That seems to work well from about 4' or so up the wall, below that there isn't enough friction to hold up the studs.

I'll be able to tell you how it works next week.

Mark
 
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Old 01-20-07, 09:34 AM
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Thanks Mark, I assume you're resting the foam board right against the concrete floor behind the bottom p/t plate, so you installed the plate after putting pressure on the board.

I'll wait for your feedback next week.

Thanks for sharing.
 
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Old 01-20-07, 03:14 PM
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Just below the plate but not on the floor. I don't want them to be right on the floor.
 
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Old 01-23-07, 05:13 AM
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Almost done with foam install, getting ready for 2x4 studs this Thursday.

What tape do you recommend to seal the seams among the foam boards?
The guys at HD have many different opinions...
 
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Old 01-23-07, 07:20 AM
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I use Tack Tape
 
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Old 01-23-07, 12:13 PM
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Originally Posted by Who View Post
I use Tack Tape

Sorry but kind type of tape is that? Can I go to HD and ask for it with that name?
I thought I could use "conventional" clear tape....
 
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Old 01-23-07, 12:42 PM
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Wink

Mark83
I have my top and bottom plates up.

I'm going to cut to length all of the studs for a section of wall and number them so they're ready to go.

Why didnt you build the wall on the floor then put it up???? I hope the bottom plate is P/T.
Just a 6 mil poly on the wall then a R13 in the stud wall space.
 
 

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