Where to Seal Air Duct Leaks with RCD Mastics

Seal Heating  & Cooling Air Ducts With Mastic & Save Energy. Leaking air ducts can be found in attics, crawlspaces, basements, garages, closets, ceilings & walls. Sealing all joints & seams with RCD Mastics will reduce wasted energy, lower monthly energy bills, reduce carbon emissions, and improve indoor air quality & comfort. Seal those areas highlighted in blue with RCD Mastic.

 

 

HERE’S WHAT YOU’LL NEED TO GET STARTED:

♦  Flashlight and/or head lamp with fresh batteries.

♦  Attics: a work board you can move around that will support your weight and span across two joists.

♦  One gallon pail and two or three caulk tubes of #6 Mastic .

♦  Caulk Gun and a Fin & Plenum Brush.

♦  2-3 pairs of latex throw away gloves (when only your hand will fit).

♦  One roll of Glasscoat fiberglass mesh.

♦  2-3 rags/towels, a spray bottle of water-based cleaner for wiping joints clean before applying mastic.

♦  Utility knife and telescoping inspection mirror.

♦  Pliers, screw driver and tin snips (you never know what you’ll run into).

 

View & Print a PDF version of this page