Quote:
Originally Posted by marty f
Back to K
The EASIEST is going to be just get the rolls, anything ADDITION you add to your current insulation will help be it r11 r13, if your ADDING it to your current, and you can get that R11 for 1/2 price Id go that route, but thats my opinion, just like belly buttons, everyone has one
|
its a complete gut so its just like new construction, nothing is being "added" because nothing at all is there now
Quote:
Originally Posted by fishinpox
Pay the man , that is some nasty stuff to work with . There is a lot more to just mixing and spraying . You have to pay attention to the temps of the wall you are applying it to . IF you go the open cell route n fill the wall cavity make sure all of your low voltage is secured tightly because when that foam expands it pushes the wires out and the guy trimming the excess off can easily nick that thin LV wire for alarms , av etc . And you wouldn't know until you try to get it working after you move in
|
yes, I even heard that stuff sticks to you like tar and sticks to your skin.
there is a lot of good to say in spray foam but there is bad too, I see all the stories of air conditioning and ventilation issues with moisture and mold problems concerns me a lot.
the way I understand how to properly condition the air in a foam sealed house is, you have to pump in or draw in, outside air and exhaust an equal amount outside, so it exchanges and this is done at a certain rate using a heat exchanger to conserve the condition airs temperature. something like 25% of the air in your house is replaced every hour.
I know that something sealed too tightly can be a very bad thing, so I would like to find a way to get the benefits of foam but not seal the house up so air tight. maybe its better with high r value fiberglass and letting the house be able to breathe better and be better air to breathe. or maybe its better with a combination of both with foam walls and fiberglass matt in the ceilings
