How To Seal An Attic Vapor Barrier

The basics of air sealing are covered in this article.

How to seal an attic vapor barrier.

During the energy crisis of the 1970s a prevailing belief took root where it was thought that tightly sealing walls and ceilings with a vapor barrier was essential to blocking heat transference and reducing energy costs it was soon determined however that unless the seal was absolute moisture that did get into sealed walls could create serious structural problems and health issues such as. Using tape that is specially designed for this purpose. Tru seal attic hatch is an attic hatch that achieves a 100 vapor barrier seal and air barrier seal. Measure the entire area and write down the results.

The paper facing contains a layer of impermeable asphalt that prevents water vapor from passing through it. Use your tape to seal the seams of the vapor barrier. Air sealing an attic. To be extra certain use a caulk gun to place caulk material around the tape to double seal the barrier.

Fill any cracks or holes you find to reduce the amount of heat that can escape through these means. Here is an extra quick tutorial on installing tru seal attic hatch. Do not add a vapor barrier on top of the insulation in your attic since the paper facing on the existing insulation is the vapor barrier. To install an efficient vapor barrier you need the dimensions of the room.

No you don t need a vapor barrier. When it comes to the stairway leading into your attic you should heed the advice in this article. For more information on the.