0 Helpful?

Slab vs. crawl space

Hello. I seem to have written my question incorrectly previously. I am preparing to build a 1,300 sq. ft. home in northwest Montana.

Around here crawlspaces and basements are the norm. I am researching using block frost walls (no basement) and a slab. Most of my builder friends are counseling me against this.

I want to have some wood floors and some tile. Wood floor area would be poured at a lower elevation. I would lay down treated sleepers and plywood to attach the 3/4 flooring to.

Does anyone have any good information to layout a pro and cons list? The alternative is ICF frost wall with top of joists set 1 1/2 above top of the ICFs.

Thanks.
Mike

Asked by Mike Koness
Posted Jul 10, 2018 5:27 PM ET
Edited Jul 11, 2018 6:20 AM ET

Tags:

3 Answers

Select your preferred way to display the comments and click "Save settings" to activate your changes.
1.

Not sure if you need a subscription (I have one) but Journal of Light Construction has an article this month with a slab on grade project then a floating floor over EPS. It looked rather ingenious.

Why are the locals against your idea? Lack of experience?

Answered by Sean Cotter
Posted Jul 10, 2018 8:33 PM ET

2.

You can install engineered flooring over a slab—especially if you insulate the slab and slope the grade away from the home. That said, you usually don’t want to force your builder and subs out of their comfort zone.

Answered by Steve Knapp CZ 3A Georgia
Posted Jul 10, 2018 9:49 PM ET

3.

Mike,
As long as your slab is above grade, you can install any kind of flooring you want above a slab. Flooring manufacturers provide installation instructions. You and your builder can do some online research to figure out the requirements for flooring installation.

For example, here is information from the American Hardwood Information Center: Installing a hardwood floor over a concrete slab.

Answered by Martin Holladay
Posted Jul 11, 2018 6:26 AM ET

Other Questions in Energy efficiency and durability

Looking for options: concrete pad detail

In General questions | Asked by tech1234 | Jul 22, 18

How long for interior to dry out?

In General questions | Asked by Peter L | Jul 22, 18

Raised Floor Insulation and Foam Sheathed Walls

In Green building techniques | Asked by user-7124491 | Jul 22, 18

Insulation Retrofit

In General questions | Asked by user-7117614 | Jul 22, 18

Thoughts on negative pressure after balancing an Venmar X24ERV?

In Mechanicals | Asked by David Goodyear | Jul 20, 18
Register for a free account and join the conversation


Get a free account and join the conversation!
Become a GBA PRO!