07:11AM | 01/13/05
Member Since: 01/12/05
1 lifetime posts
I have a 1970s home in Southern California with stucco exterior. On the inside, the exterior walls feel cool to the touch in the winter, so there is probably no insulation, which was corraborated by my neighbor. I want to add some insulation, mainly just in the bedrooms, but I want to do it myself, if possible.

I was considering using expandable foam (Great Stuff is one type, Hilti has another) and drilling a small hole from the inside through the drywall (since easy to repair)and injecting it between the studs - above and below the lateral fireblocks.

I have worked with this type of foam before, but not in an application like this.

Has anyone done this? How much do I use? Are there any drawbacks, like odor or others?


07:31AM | 01/15/05
Member Since: 06/23/04
161 lifetime posts
Be very careful. Standard foam insulation expands with more pressure than drywall can handle. If used in a wall the drywall will bulge out between each stud. Homeowners often use standard foam around windows only to find that the pressure caused the frame to bow enough to prevent the window from sliding.

There are special foams available for the installation you describe. They are designed to expand until coming in contact with an obstruction and then stop. They are also somewhat soft and will crumble easily in the hand. If exposed to sun or any abrasion they wil quickly deteriorate. Get a guarantee from the foam supplier that the foam is designed for use in wall cavities and will not cause the drywall to bulge.



Post a reply as Anonymous

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



Post_new_button or Login_button

A new backsplash is a great example of a stand-alone cosmetic project that can dramatically transform a space. Fireclay Ti... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled entryway will get you in the outdoor mood. Grab your coat... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... A kitchen in a greenhouse—who wouldn't enjoy spending time in this light-filled space? Details that enhance the conservato... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... The Infinite Artisan Fire Bowl from Eldorado Outdoor is made from glass-fiber reinforced concrete, and offered in Oak Barr... The vibrant green of Granny Smith apples make a beautifully natural alternative to the traditional evergreen wreath. Brigh...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon