Where To Seal Duct Leaks With Mastic

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 Mastic.

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

♦  Flashlight and/or head lamp with fresh batteries. Check out our hat with built-in head lights.

♦  Attics with no flooring; 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 .

♦  #115 Caulk Gun , Mastic brush and Fin & Plenum Brush .

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

♦  One roll of Glasscoat mesh.

♦  2-3 cloths and a can of #34 Coil & Fin Cleaner for wiping joints clean before applying mastic and for clean up.

♦  Utility knife and telescoping inspection mirror.

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

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