Membrane on wall - is vapor barrier still necessary?
I looked around and couldn't find this issue. I have a membrane installed on the walls of my basement. I know that vapor barrier is full of opinions but, should I even consider a vapor barrier after I install insulation with this membrane already on the wall? The membrane goes under the floor and should be sealed at the top but some parts have pulled away from the wall
The biggest thing you are lacking is fireblocking behind your wall at your top plate. You will have to follow your local code on the interior vapor retarder. IMO you should have put 2" of foam on the walls before framing went up. Kraft facing is OK, but I would not use poly.
Thanks, that's interesting. I looked at Lowes today and saw the Kraft insulation next to Corning, I'd never heard of Kraft. Do you recommend it over the pink stuff?
Hi RFD'ers,
I have water in my basement. It is a new custom build in Southern Ontario, where during the backfill of the foundation, the waterproof membrane was damaged in a few areas. To limit the cost, waterproof membrane was installed in the interior of the house prior to the concrete floor being poured, which was to route the water to the weeping tile under the concrete and gravel and carry it away from the house. The basement plumbing has only been roughed in and the concrete floor where the basement bathroom is to be hasn't been concreted over as the toilet flange hasn't been installed yet.
It has been moderately raining for the past few days and I encountered this sight when I went to the house today.
I took a video of the areas where water is coming into the house. [url]https://youtu.be/nXdDWCygYlM[/url]
The basement is my main concern as the other areas where there look to have water seeping/dripping through could be explained by there not being any aluminum capping/flashing on the exterior of the house yet (fyi - we have a flat roof but pitched for drainage).
There is also no power to the house yet, so the sump pump is not working as yet. I know ideally, the outside waterproofing should be fixed so the water is managed properly before it gets into the house not after.
Question is should I be gravely concerned? I will be bringing this all up with the builder, but I know they will be coming up with explanations for this, so I want to know how much I should be pushing back on their statements.
I am going to frame and drywall the basement myself to save some money, but I need to get the basement water issues addressed first.
TIA.Read More
Live in NJ so it can get cold in winter. Framed out basement with 2x4's - The walls are a few inches away from the concrete. There was existing 1.5" foam insulation already glued to the walls. Do I need to put fiberglass insulation on the outside walls? I've read pros and cons regarding moisture. Thoughts?Read More
02-23-23, 12:29 PM
