How To Seal An Attic Vapor Barrier

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.

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. Tru seal attic hatch is an attic hatch that achieves a 100 vapor barrier seal and air barrier seal. What you need is an air barrier that is at every step of the way you have to pay attention to airtightness. To install an efficient vapor barrier you need the dimensions of the room.

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. When it comes to the stairway leading into your attic you should heed the advice in this article. The basics of air sealing are covered in this article.

Take a note of the construction of the attic and figure out which type of barrier will be suitable. Use your tape to seal the seams of the vapor barrier. For more information on the. To be extra certain use a caulk gun to place caulk material around the tape to double seal the barrier.

Air sealing an attic. Fill any cracks or holes you find to reduce the amount of heat that can escape through these means. No you don t need a vapor barrier.