Return to the Basements Forum | Post a Follow-Up

Several XPS questions...

Posted by matt_r (My Page) on
Sun, Oct 7, 07 at 2:28

Well, I went to HD and purchased the pink Owens 1-1/2" panels. Because my ceiling is low, I installed them this OK. And I got so fed up with out of square twisted 2x3's, I went ahead and go 2x4's and plan to lay them horizontally. But I cannot find long enough tapcon screws...the largest they have is 2-3/4", but my wall is now 3" thick (1-1/2" XPS and 1-1/2" layed flat 2x4). Do they make longer ones...but just not sold at most stores?

I must say, so far, I like the panels, they assembly nicely. I was using too much tubes of adhesive, so I purchased a gallon can, which is proving to be much better.

What kind of tape if any, should I seal the seams with, metal tape?

Follow-Up Postings:

RE: Several XPS questions...

The XPS goes directly on the wall. It doesn't matter whether vertically or horizontally.

I'm not clear what you mean about putting 2x4s horizontally. On the wall? From the point of view of insulation, it's okay. But as I mentioned on another thread, not great for getting a plumb straight finished wall. Better to just build a stud wall as mentioned there.

The best practice is to use construction sheathing tape, such as Tuck tape. Certainly whereever you weren't able to use the shiplap or where it is damaged.

Tapcons and other masonry fastening screws are available up to 6" long. The big box stores I've been to all had ones longer than 2 3/4".

RE: Several XPS questions...

what is XPS?

RE: Several XPS questions...

XPS = extruded polystyrene. It is a foam board. Owens Corning makes a version that is pink and comes in 2 x 8 sheets of various thicknesses.

EXP is more durable and mildew resistant than it's closely related cousin, expanded polystyrene (EPS). This makes XPS an excellent product for below-grade masonay insulation purposes. EPS is more commonly known as styrofoam.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Basements Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here