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Protecting crawl space slab foam

We have a 4' crawl space that has eps foam+vapour retarder for a 'slab.' what are some cost-efficient options for protecting the foam and poly? i imagine the homeowner will want to use the space for some storage. p.s., concrete is not an option....thanks again, gba!

Asked by erik olofsson
Posted Jan 28, 2013 3:05 PM ET
Edited Jan 28, 2013 4:18 PM ET

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3 Answers

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1.

Erik,
The right answer is "concrete." I'm not sure why you don't like the right answer.

I suppose you can loose-lay some 4x8 sheets of cement backerboard on top of the foam if you don't like concrete.

Answered by Martin Holladay, GBA Advisor
Posted Jan 28, 2013 3:20 PM ET

2.

thanks for your advice, martin. what about laying down t+g osb directly on the poly? or laying standard edge osb on 2x4 sleepers?

Answered by erik olofsson
Posted Jan 28, 2013 3:53 PM ET

3.

As long as the crawl space floor stays dry, I suppose OSB will work.

Answered by Martin Holladay, GBA Advisor
Posted Jan 28, 2013 4:12 PM ET

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