Ducts In Attic Or Crawl Space

This means that like an attic or unfinished basement you don t heat and cool it.

Ducts in attic or crawl space.

Insulate and air seal the floor with open cell foam put ductwork and mechanicals in the attic install a radiant barrier and mastic seal the ducts. If you have ductwork in your crawl space the temperature of the duct will be the same as the temperature of the crawl space. I vote for the attic. While the attic install isn t ideal it beats the problems that come with ducts.

See the article i linked to for more details. Strap ducts out of insulation with 3 ductstraps per specifications. I lowered soffits around room perimeters. And you win big time.

You can get the air handler and ducts into conditioned space in several ways without needing a basement or crawl space. Now your sealed and insulated attic and your hvac duct system is protected from extreme temperatures like your crawlspace or basement. Seal supply boxes with mastic. Leaks from air conditioning condensate probably are not the worst moisture problem in a.

Iv conditioned attic and more. In the winter a crawl space can be significantly colder than the living spaces of your home. If the ducts are in an unconditioned crawl space you can encapsulate. The hot air leaves your furnace at the desired temperature.

That same ac system that could never cool your bedrooms now with a sealed and insulated attic is providing supply airflow temperatures on par with the same unit located under a house. If the ducts are in an unconditioned attic you can put spray foam insulation on the roof deck. The crawl space is an unconditioned space. Iii special trusses that create space below the unconditioned attic.

Knowing the disadvantages of attic install and the crawl space install. Sweating ducts in crawl spaces and attics getting mad.