Can you drywall over vapor barrier?

Think of it like a large wick in an oil lamp, or a semipermeable cell membrane that allows the transport of water. 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.

Can you put plastic between insulation and drywall?

Considerations. The standard installation of a plastic vapor barrier is between the studs and the drywall, but there are some exceptions to this. In exterior walls that are below-grade, like basement walls, plastic should not be used at all.

Can you cover insulation with plastic?

4 Answers. Plastic isn’t recommended in this situation because it would create a second vapor barrier that can trap moisture and result in condensation and mold. Craft paper would have the same problem, this is what is most likely on the other side of the insulation for the vapor barrier you want.

Should you put vapor barrier on ceiling?

Plastic vapor barriers should only be installed in vented attics in climates with more than 8,000 heating degree days. All attics — vented or unvented — should have an air barrier (a properly detailed airtight drywall ceiling, for example) regardless of climate.

Should you put plastic over insulation?

While we hear a lot about dual vapor barriers and the 5 to 1 rule, installing plastic sheets directly over faced insulation does not cause a moisture problem if installed correctly. The reason for this has to do with Relative Humidity (RH%) and the fact that moisture flow during the winter is pressure induced.

Can I put plastic over my insulation?

While we hear a lot about dual vapor barriers and the 5 to 1 rule, installing plastic sheets directly over faced insulation does not cause a moisture problem if installed correctly. In simple terms, a vapor barrier is a material that won’t allow moisture to pass through it, such as plastic sheeting.

What can I use to cover exposed insulation?

Suggestions for covering exposed insulation include the following:

Seal the insulation by stapling a polymembrane sheet over it.
Install paneling or sheetrock over insulation located in the wall.
Install plywood flooring over insulation located in the floor.

Is there a barrier between drywall and ceiling?

We have installed a 6 mil plastic barrier on the underside of the rafters to act as an air & moisture barrier. The barrier will be sandwiched between the drywall and the rafters and under the blow-in insulation. I talked with another insulation guy that said he thinks it might trap moisture in the house and cause problems with the ceilings.

Can you use mold resistant paint on drywall?

Mold resistant paint prevents the future growth of mold only on the paint surface itself. They will in no way prevent mold growth in your drywall, framing or on other surfaces in your ceilings and walls. I’m not going to be addressing mold found in framing, attics or other areas in this post. That is for a different website.

Is it OK to put plastic between drywall ceilings?

He thinks we should tear out the plastic before we install the drywall ceilings. Does anyone know if the plastic barrier will help or hurt us? It depends on your local climate. For climates that are higher humidity inside than outside in summer (a dry climate) plastic on the interior is OK.

What should I do about mold on my Ceiling?

What to Do to Treat Mold on Ceiling 1 Remove the Source of the Mold As mentioned before, mold or mildew on ceiling grows on a dark and humid area. If the… 2 Clean the Affected Area Cleaning the affected area involves using mold cleaner that is made from chemicals. However,… 3 Remediation More

Is it safe to remove mold from drywall?

There are times when removing moldy drywall is safer, more effective, and less time consuming than cleaning it. If your drywall surface is soft to the touch, the moisture and the mold have taken their toll on its structural integrity.