In high-pressure HVAC systems, the duct sealing process can determine whether a project finishes on time or stalls. Traditional liquid duct sealants may require up to 48 hours to cure before pressure ...

DIVERSE APPROACHES: There are diverse types of ductwork for unending applications. It’s the same story for duct sealing and what it means in terms of system efficiency and energy savings. August 6, ...

Densoseal 16A is based on polybutene, mineral fillers, organic fibers and water displacing materials. It is designed for sealing cable ducts, conduits and service entry pipes or sleeves particularly ...

Q • We had our air ducts tested by Laclede Gas. They failed with a 73 percent leakage. Their contractor is willing to fix the leaks for $1,000. The Earth Ways Center recommends sealing the ducts with ...

Fiberglass insulation is not airtight. Heck, it will barely even slow air propelled by convection, differential pressure or wind. It is especially helpless against air moving through a leaky pipe ...

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 ...

Q: I had a heating-and-air-conditioning professional come to my home and do a home-energy analysis. He says my ductwork needs to be repaired upstairs and in the crawlspace, because a good deal of ...

Most houses rely on a compact central furnace for heat production and a sprawling system of ducts for heat delivery. With furnaces installed in the last 10 years or so producing $8 or even $9 of ...