Should you put a vapor barrier on basement walls?

Steve Bliss, of, writes: The short answer is: Don’t use a vapor barrier in a finished basement. This is asking for trouble, especially with a full bathroom, which generates a lot of humid air. Rigid foam board on the interior, like you have, is the ideal insulation.

How do you install a moisture barrier in a basement wall?

Tips for Installing Vapor Barrier in a Basement

  1. Pull the barrier tightly across, and cover large surfaces as flatly as possible.
  2. Make sure not to tear or cut the material.
  3. Align the barrier right up to electrical outlets, pipes, windows and other obstructions, and use a sealant to secure the material.

How do you frame a concrete basement?

Quote from the video:
Quote from Youtube video: And a couple of impact nails and what this does is this drives down it's a three inch nail goes through the one-and-a-half inch plate into the concrete. And even if it isn't completely buried.

How do you frame a cement wall?

Quote from the video:
Quote from Youtube video: This is a foam board adhesive. It's going to stick the foam right to the foundation. It's specifically formulated for this application. Okay now just tip the top into that space up above push.

What to put on basement walls before framing?

If there’s no room for foam, make sure to use treated lumber, but still tape the seams. Construction adhesive and concrete screws work best to attach these boards. Install the wood around the window before you build your wall. That way you’ll know exactly where the new wall framing needs to be.

How far should studs be from basement wall?

Be sure to maintain the 16-inch on-center stud spacing, and check the wall frame to make sure it’s plumb before nailing it to the beam.

What is the difference between a vapor barrier and a moisture barrier?

Moisture barriers function to help in preventing water from entering inside of the wall cavity. On the other hand, vapor barriers basically prevent water vapor from the interior of the house to filter through the wall and condense on the warm side of the insulation.

Where do you put a vapor barrier in a basement wall?

Not to be confused with a vapor barrier—which is placed on the warm side of the wall just in front of the insulation and behind the drywall— a moisture barrier goes against the basement wall and behind the insulation and framing. The best option for insulating a basement is to use spray foam insulation.

Can you put a vapor barrier over concrete?

Subfloor Material

Therefore, because concrete is porous, it’s a good idea to install a vapor barrier over your concrete subfloor before installing your flooring. This way you can stop the vapor drive of water upward to your floors, protecting them from any damage (source).

How do you attach a wood frame to a concrete foundation?

Quote from the video:
Quote from Youtube video: We do use mechanical fasteners to attach the sip to the timber frame. And from the sip into the first floor platform. The eye joists are actually also screwed into the sill.

What should I put between drywall and concrete?

The solution is covering concrete with a vapor barrier, which acts like a resistant cell membrane instead. With a shield in place, the drywall is safe. Typically, a stud wall is then installed against the concrete, but furring strips are quick, easy and take up less space.

How do you frame a cinder block basement wall?

Quote from the video:
Quote from Youtube video: So what I do here is I put the bottom plate down I use liquid nail and I also use these 3 inch wedge anchors let me just show you the bottom. So it's 1/4 inch actually two and a half inch.

How do you attach wood to cinder block foundation?

Mark the block with a marker.

  1. Use a masonry drill bit to bore into the cinder block. …
  2. Blow compressed air from a canister or air compressor into the hole to remove leftover dust from drilling and brushing.
  3. Insert the epoxy bolt into the hole and twist it clockwise several times until it is covered in epoxy.

Do you need to insulate cinder block walls?

However, when equipped with the proper insulation, cinder block homes are more energy efficient than homes made of wood and other materials. For this to be true, however, insulation is a must. Otherwise, your walls will have little to no thermal resistance.

Do concrete basement walls need insulation?

Walls. Basement walls should be insulated with non-water sensitive insulation that prevents interior air from contacting cold basement surfaces—the concrete structural elements and the rim joist framing.

How do you insulate a concrete basement wall?

Quote from the video:
Quote from Youtube video: So you don't need a lot of insulation on basement walls in fact. You can do the job well with just a two inch layer of polystyrene stuck right to the surface of the concrete.

How do you insulate basement walls after framing?

Use spray foam insulation on basement walls when the walls studs have already been installed. Spray foam is best when you need continuous insulation with no gaps to permit air infiltration. It is an excellent solution for irregular walls and for walls with many cracks, seams, and joints.

Should concrete walls be insulated?

So should concrete walls be insulated? In my opinion the answer is a big yes. It improves energy efficiency, makes a home more comfortable to live in, helps prevent mold and saves money on monthly energy bills. And best of all it’s not that hard or expensive to do.

Can insulation touch concrete walls?

It’s not recommended that you apply fiberglass insulation directly to a concrete wall. If you must use fiberglass, there needs to be a space between the insulation and the wall. If not, the place where the insulation touches the concrete will be overtaken by mold and mildew.

How do you insulate an exposed concrete wall?

The next best way to insulate a concrete wall is with rigid foam boards. This is the most popular method because it’s so DIY friendly and cost effective. Rigid foam is a great insulator, R-2 to R-6 per inch on average, and water resistant. I recommend you tape and caulk all the seams once the boards are installed.