Helpful? 0

Mineral wool boards below grade and termites

My house's structure is made of wood and there are subterranean termites (non-formosan) in my yard and area. I am planning to excavate and insulate the slab perimeter in the interests of saving on heating, but am worried about creating a termite highway.

I figure XPS is right out, and I'm not sure about termite-treated EPS either. The availability, price per R, and ease of installation are attractive, but since the advertised termite resistance just comes from a chemical treatment, I worry that it will fade or leach out over time.

I've considered foamglas, which would be ideal due to its many desirable qualities, but it's ridiculously expensive compared to the alternatives.

What about mineral wool? I see people online (including here) claiming it's resistant to termites, but I've been unable to locate any real confirmation or denial of this. My sense is that the mineral wool industry would be advertising this if it were true (as the foamglas industry does). So what's the skinny?

Asked by Nathaniel G
Posted Fri, 08/08/2014 - 19:35

Tags:

1 Answer

Select your preferred way to display the comments and click "Save settings" to activate your changes.
1.
Answered by Malcolm Taylor
Posted Sun, 08/10/2014 - 11:35

Other Questions in Energy efficiency and durability

Dryer Ducting Materials Requirements

In Building Code Questions | Asked by Joe G | Sep 22, 14

The differences between mass and insulation

In Green products and materials | Asked by Nathaniel G | Sep 15, 14

Tyroc subfloor

In GBA Pro help | Asked by Brad D | Sep 21, 14

Insulated slab detail "problem"

In General questions | Asked by Lucyna de Barbaro | Aug 22, 14

A layer of 1" XPS foam between fiberglass batts?

In Energy efficiency and durability | Asked by Joshua Streblow | Sep 19, 14
Register for a free account and join the conversation


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