Attic insulation / Discussions

...attic-how-do-i-fix-ice-dams/) stresses the importance of a vapour barrier: "But, if you have no air barrier at all, you really do need one. This requires lifting insulation, laying down a polyethylene vapour barrier over the whole surface (it can go up and down over joists) then reinstalling the insulation.". But in th...

...attic and living space. Thinking permeable is better but I'm hearing differently. Where and when to use vapor barriers in construction and renovation can vary depending on a few things – the climate you are building in, whether it is above grade or below, and the composition of the wall. The answer is more simple for h...

...insulation between the joists, Im wondering if I can increase the insulation or if that is of no use since the stairwell is open.  Blowing cellulose overtop of fiberglass insulation is no problem, but you need to be very careful about how much insulation you blow in, and make sure don’t block your ventilation openings ...

...insulation to install.  And to be sure I understand, it sounds like your preferred finish is to leave the rafters and bays between them open as the interior finish, which would mean insulating the outside. If that is the case, yes you can, you would want to insulate it the way you would exterior walls, and then install...

...insulation with a plastic vapor barrier and then drywall today while putting up drywall noticed that the vapor barrier is covered with condensation how do I stop the condensation. Have put a halt to this project until I can solve this problem Condensation behind vapor barriers with newly built walls is not good, but it...

...insulation.  My walls are double 2x4 stud walls 12 inches deep and will have 2-3 inches of closed cell spray foam insulation to create a air and vapour barrier first, then the rest of the cavity will be  filled with dense pack cellulose insulation, with an intello vapour barrier holding cellulose all in.  I'm wondering...

...attic, I have a radiant barrier on the attic ceiling and floor. I am removing the cellulose, but what non toxic insulation can I use with the radient barrier?  Hemp or wool?  Where can I buy hemp?  Thanks! You can order Hemp insulation through Ecohome, and hemp is a natural and non-toxic insulation material that will p...

...attic edges, seal house-to-attic penetrations like the bathroom vent, and wiring, insulate the bathroom vent.   Any thoughts?  Frost  buildup in an attic is a result of moisture that can’t escape, and that is caused by the insulation blocking the soffit vents. I hate to bring you bad news but I think you need to strip ...