How To Properly Air Seal An Attic

The standard solution and the one i recommend is to install a layer of 1 2 inch drywall with taped seams first followed by the tongue and groove boards.

How to properly air seal an attic.

We ll show you how to maintain proper air flow in an attic when you re going to add extra insulation over the attic floor. Caulk and seal air leaks where plumbing ducting or electrical wiring comes through walls floors ceilings and soffits over cabinets. Begin by filling the garbage bags with 16 inch strips of insulation and use these to stuff any open joist spaces and soffits. Inspect dirty spots in your insulation for air leaks and mold.

Mask if you have loose blown in insulation i highly recommend the 3m changeable filter mask. The attic is usually where you can find some of the largest opportunities to save energy in your home. When you re done sealing your attic bypasses push the insulation back into place with an old broom handle or stick as you back out of the attic. Silicone or acrylic latex caulk and a caulk gun practice using the caulk gun first used for air leaks that are smaller than.

And we ll show you how to seal up the ductwork and ventilation fans. David you absolutely must have a tight air barrier under your tongue and groove ceiling since the boards do nothing to slow down air flow. Install foam gaskets behind outlet and switch plates on walls. Apply self adhesive foam weatherstrip tape to the top edge of the stop.

Reflective foil insulation or rigid foam insulation to cover soffits open walls and larger holes. Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11. When planning how to air seal an attic work from big to small in order to make the most of your time. Combined with attic insulation air sealing can help to alleviate the formation of dangerous ice dams in the winter.

So in a few hours or a day in your attic sealing up these air leaks you can save a significant amount on your energy bill. To properly seal your attic hatch also known as an attic door or scuttle hole at a minimum you should apply weather stripping and ensure the attic side of the attic door is insulated. Air seal your attic for energy savings. Better yet there are high quality products such as the attic gator designed to both seal and insulate attic access doors and scuttle holes.

Long pants long. Find electrical wires and boxes.