Foam insulation / Discussions

...foam contractors who propose to spray foam to onto the suspended floor and under the roof ( converting to warm attic), pouring foam in the air gaps in the walls from holes drilled in the dry lining. The foam will form an air seal envelope and insulate. They say the foam is permeable. I think spraying the suspended floo...

...insulation panels, which may or may not be recyled but they are made from a renewable resource, but they also may contain plastics so check manufaturers specs. This page here is likely a good read for you about different rigid insulation options :  All about Rigid insulation panels : which ones to use for which applica...

...insulation with a cinderblock wall that they have either applied white paint or drylok to, can't tell though. The basement is also a walkout so three sides are exposed to air while the front of the house is underground. My question is should I apply 2 inch foam board to the inside of the wall or leave a gap for air? I ...

...insulation aspect of finishing our basement correct, but I'm still not sure. The two different kinds of foam boards I've been looking at are, Kingspan Insulation R-10 2in*4ft*8ft unfaced polystyrene foam board from Lowes and the Foamular 150 2in*4ft*8ft R-10 unfaced squared edge insulation sheathing from Home Depot. Ar...

...insulation to keep it cool. Can I put foam board in between my studs and tac nail it? You could put foam between the studs, but why not batts? Were you choosing foam due to reading here about using foam on basement walls to stop vapor from migrating into walls? If that’s the reason, I would sooner try to slip a sheet o...

...foam panels, we would recommend EPS rigid foam instead of XPS as it is cheaper and less environmentally harmful, read more here about the performance and characteristics of foam panels –  Choosing rigid foam insulation panels, which is best? I assume at least some of the insulation will still be exposed above grade, co...

...insulation in the wall cavity. The foil based rigid foam panels may be EPS, but they also may be polyisocyanurate insulation. Do you know which they are? This page here can help you identify them as well as learn the characteristics and best uses. Choosing the right Rigid foam insulation panels And to answer your quest...

...insulation is best and how much you have room for. But in general, here is a good page to start on –  How much insulation does a basement need?  As for carrying out the work, is there a history of flooding? It would be smart to install a sump pump to avoid basement water damage before you install a new floor.  And as f...

...foam insulation has failed? It's hard to ever weigh in on a problem with complete confidence without seeing a project or knowing the full wall assembly, but if anything, that may actually show a 'success' of the spray foam rather than a failure. The wood studs will transfer far more heat than the Spray Polyurethane Foa...

...insulation to the outside of our stucco siding (concrete like material, about 3/4" thick). I was thinking about attaching large insulating panels (styrofoam or similar) similar to the ones they use all over Europe. I am looking for a pointer on where to start and find more information. Thanks,  Insulating the exterior ...

...insulation and a sheet of plastic should surprise no one when it starts sprouting mushrooms. So we're happy to hear you're not going down that road. Here are two pages that will set you off on the right path to a healthier more durable basement:  Preventing mold when you insulate your basement The difference between P...

...foam insulation at about 1 inch thick will act as a vapour barrier, EPS foam insulation will start to act as one at about 2 inches, and polyisocyanurate (the one with the foil on both sides) is a vapour barrier at any thickness (foil is waterproof). You can read all about rigid insulation panels here. Installing insula...