Moisture Barrier Brick Walls

Moisture is a problem in most climates as air conditioning creates cold air in warmer temperatures.

Moisture barrier brick walls. If there is no visible moisture water problem along the floor next to the brick wall then the current ventilation is working and we probably don t want to alter air flow between the room and the exterior. Whether or not you need a vapor retarder hinges on three main factors. This can cause two problems. This moisture now a vapor is trying to get through the walls to the exterior.

If you put plastic a vapor barrier on the brick wall significant amounts of moisture will condense on the inside of the plastic. If you install the vapor barrier on the cold side of the insulation i e the inside of the brick you will trap moisture inside the walls and make the moisture problems worse. Installing a vapor barrier on the warm interior wall of your cement brick house will prevent condensation and reduce air leakage through your walls and insulation. Not every wall does.

A vapor barrier is used on the inside of the insulation not on the outside walls. Thus installing vapor barriers on wall surfaces must. A vapor retarder is a material used to prevent water vapor from diffusing into the wall ceiling or floor during the cold winter. After the insulation is in place you will want to add a vapor retarder sometimes called a vapor barrier if you need one.

Trapped water can saturate your insulation and. The point is to prevent moisture from the living spaces from penetrating into the insulation.