01:33PM | 06/28/03
Member Since: 06/27/03
3 lifetime posts
I have a 4 ft high crawl space about 20 ft long by 13 ft high with a concrete cap. I'd like to replace the exposed, unfaced fiberglass insulation with Premier Industries R-Tech silver-faced polystyrene boards.

My question is what thickness is appropriate for this use? The available thicknesses vary from 1/2 inch to 3 inches. Also, what is the best adhesive to use to attach the boards to the (cleaned!) block walls?

I live in Columbus, Ohio, if that's important to know.



07:07PM | 06/29/03
Member Since: 01/28/03
693 lifetime posts
There is no reason to add insulation to your block walls in a concrete crawlspace in Ohio...foam or otherwise.

Any insulation in a crawlspace for your climate should be placed into the floor joists of the story above the crawl space and should be generally R-25 or better compact fiberglass.


07:31PM | 06/29/03
Member Since: 06/27/03
3 lifetime posts
Thanks for the response. I thought the same as you, but my local building code office requires that the crawlspace and first 2/3 of walls be insulated, below the frostline. The house is new, so the exterior foundation has been waterproofed and insulated as well. I think it's overkill, but to get permit approval, I have to insulate.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Reused steel windows create an eye-catching splashguard in this walk-in shower. The vintage factory windows bring an inter... A galvanized steel tub is a surprising but charming fixture in this bright and breezy screened patio. It's perfect for was... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... If you lack plumbing skills but have a good sturdy tree, here's the easiest outdoor shower solution of all: Simply attach... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... How do you like this smart use for an old bottle? Clamp an empty wine bottle to a fence or wall near your outdoor deck or ... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon