The reason as you may have read is that when there is a vapour barrier in homes in hot humid climates that rely on air conditioning for human comfort that vapour barrier.
Vapor barrier paint for concrete walls.
Hydrohalt s water based polymer modified formula waterproofs and prevents vapor transmission for a variety of subterranean surfaces including concrete masonry brick block wood and metal.
Very hot and humid climates may benefit from an exterior vapor barrier that keeps outside humidity from penetrating into walls.
Vapour barrier paint or vapor barrier paint in the u s.
Below grade walls and floor slabs transmit ground moisture through concrete walls or slabs.
This is why a vapor barrier under concrete is essential.
A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed.
If the problem isn t severe painting concrete in the basement with a moisture barrier paint can solve the problem.
If you have a framed wall that is adjacent to a concrete foundation wall where the vapor barrier is next to the drywall in front of the studs the fiberglass insulation gets wet and becomes a breeding ground for mold.
A vapor barrier is not the same as an underlayment.
The construction of the wall for instance is vital to the use of a vapor barrier.
In these cases a high grade low perm water vapor barrier paint is essential.
Moisture vapor barrier primer finish interior latex is a coating designed to reduce the loss of moisture through walls and ceilings.
Older homes in need of water vapor barriers are also good candidates for water vapor barrier paint.
Is more of a solution for walls rather than ceilings to prevent the indoor vapour drive during hot humid weather.
It combines a primer and finish in a single fast drying coat and is specially formulated for manufactured housing facilities.
In some cases such as cinder block construction it is impossible to install conventional water vapor barrier sheeting behind exterior walls.
Protect and preserve your below grade architectural surfaces e g.
Concrete foundations using hydrohalt a high quality water and vapor barrier membrane.
Vapor barriers are a way to keep moisture from getting into the concrete.