How To Seal An Attic Vapor Barrier

Air sealing an attic.

How to seal an attic vapor barrier.

Take a note of the construction of the attic and figure out which type of barrier will be suitable. To be extra certain use a caulk gun to place caulk material around the tape to double seal the barrier. No you don t need a vapor barrier. Using other kinds of tape will compromise the waterproof seal and render the barrier useless.

The paper facing contains a layer of impermeable asphalt that prevents water vapor from passing through it. Tru seal attic hatch is an attic hatch that achieves a 100 vapor barrier seal and air barrier seal. 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. The basics of air sealing are covered in this article.

Using tape that is specially designed for this purpose. What you need is an air barrier that is at every step of the way you have to pay attention to airtightness. Fill any cracks or holes you find to reduce the amount of heat that can escape through these means. 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.

Measure the entire area and write down the results. For more information on the. Use your tape to seal the seams of the vapor barrier.