What can I put on the pink 2 inch foam board (sorry forgot the brand name) to protect it from UV degredation ?This is insulating a monolithic slab.
Keith
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story
Built from locally sawn hemlock, this functional outdoor feature uses structural screws and metal connectors for fast, sturdy construction.
Highlights
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Fine Homebuilding Magazine
Fine Home Building
Follow
-
Fine Homebuilding
Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.
Start Free Trial Now -
GBA Prime
Get instant access to the latest developments in green building, research, and reports from the field.
Start Free Trial Now
- Home Group
- Antique Trader
- Arts & Crafts Homes
- Bank Note Reporter
- Cabin Life
- Cuisine at Home
- Fine Gardening
- Fine Woodworking
- Green Building Advisor
- Garden Gate
- Horticulture
- Keep Craft Alive
- Log Home Living
- Military Trader/Vehicles
- Numismatic News
- Numismaster
- Old Cars Weekly
- Old House Journal
- Period Homes
- Popular Woodworking
- Script
- ShopNotes
- Sports Collectors Digest
- Threads
- Timber Home Living
- Traditional Building
- Woodsmith
- World Coin News
- Writer's Digest
Replies
Dirt, concrete or siding seem to be most popular choices. Is this insulating the slab from the air above it or the ground beneath it?
Just get it down, lay the rebar/wire, and then place the crete over it and the UV will never see it.
Welcome to the
Taunton University of Knowledge FHB Campus at Breaktime.
where ...
Excellence is its own reward!
I presume you're insulating the edge of a slab. I have used cement board, self-adhesive foam-compatible membrane and parging. Not all at once.
Ron
Thank you for replying to my question about protecting foamboard. I did put 8 inch Hardie board fastened to the sill plate. Now I see that Hardie recommends the same 6 inch clearence from soil as does the building code . Any problems with cement board in contact with soil. Its pretty wet on the Oregon coast and carpenter ants and termites are a problem.
Keith
The reason Hrdi doesn't want ground contact is that it will wick up moisture, and that can transmit to frame lumber or freeze and cause separations within the structure of the product. Freeze/thaw cycles are the worst danger to what you have. Super painting can help, or a couple coats of Thorocrete. Sorry I misunderstood the application.
Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!
You're welcome.
I wasn't clear enough in my answer. I wasn't thinking about Hardie board but of a cement board like Durock. That is a USG product and widely available.
http://www.usg.com/navigate.do?resource=/USG_Marketing_Content/usg.com/web_files/products/prod_details/DUROCK_Brand_Cement_Board.htm
Ron
I used copper sheets, effective and inexpensive.
PAHS Designer/Builder- Bury it!