The time has come for installing a new HVAC system.It could be you’re installing a heating and cooling system for the first time, contemplating a replacement system, converting from baseboard or radiator heating, or you’re replacing damaged ductwork.When working with fiberglass insulation, always wear: Gloves are a good idea, too, but it can be hard to do the delicate fitting and taping required while wearing them.Start by turning your heating/cooling system on and feeling along the ducts for air leaks, paying particular attention to any joints or connections in the ductwork.
If your home has a flat roof with no attic crawl space and no ceiling tiles, the drywall or plaster ceiling must be removed.
Don’t use standard cloth duct tape on HVAC ductwork, since the adhesive won’t hold up to extreme temperatures.
For an added layer of protection, you can apply duct mastic to the tape and duct.
When insulating HVAC ductwork, use a foil faced fiberglass insulation with an R-6 or higher R-value.
Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place.