HarveyWildes
Member
- Joined
- May 3, 2016
- Messages
- 984
What will you be using for insulation? We decided to spray polyurethane when we built our house, and I've never regretted the decision. You end up with R-20-23 in 3.5in of wall. Sprayed on the underside of roof sheeting, it keeps heat from building in the attic and seeping into the rest of the house. All around it cuts our energy bills by a factor of 2-3. In addition, it adds structural strength to the framing (if you are framing). It also helps with sound insulation, but doesn't do the full job.
The main downsides are cost and the ability of an enclosed, sprayed space to concentrate heat in a fire, since there is no place for the heat to go until the poly is breached. There are some dramatic stories of how fast fire can spread in enclosed, small spaces like hallways. I figure if our house ever goes up, the contents will pretty much be a total loss.
But overall I love the product and the results we got with it.
The main downsides are cost and the ability of an enclosed, sprayed space to concentrate heat in a fire, since there is no place for the heat to go until the poly is breached. There are some dramatic stories of how fast fire can spread in enclosed, small spaces like hallways. I figure if our house ever goes up, the contents will pretty much be a total loss.
But overall I love the product and the results we got with it.