When Air Management Industries was hired to seal ductwork on a government-owned building in downtown Los Angeles, officials knew standard brush-on sealant wasn’t going to cut it. The exposed, rooftop ...

Q: I had a home-energy analysis. The report said my ductwork needs to be repaired upstairs and in the crawlspace because that is where a good deal of leakage is and also is bringing bad air pollutants ...

The North American Insulation Manufacturers Association fibrous glass duct construction standards are a guiding light for HVAC installation. As rigid fiberglass has gained a stronger footprint in the ...

Q: We recently installed a new granite tile backsplash and countertops in the kitchen. But if we place a wet object on the counter, the granite stains in that area. Most of the time the stain fades in ...