Main Ductork In Attic

Yes when you bury ducts in attic insulation in a humid climate you increase the risk of water vapor condensation on the jacket of the duct insulation.

Main ductork in attic.

Attics are almost as cold as the outdoors during the winter and can be much hotter than the outdoors during the summer. Peel off part of the backing. As most gba readers know ducts belong inside a home s thermal envelope not in an environment that s cold in the winter. Burying ducts in attic insulation.

Here s bob s trick for taping a seam on a pipe that s installed close to the subfloor. Leave backing on the tape on metal ductwork. The answer is simple. If ducts are located in a crawlspace underneath your house cover the soil to reduce moisture.

Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. Slide the backing up and over the pipe. But in my last article i also showed you some preliminary results from a research study on buried ducts in a hot humid climate. The costliest are sheet metal ducts running in enclosed walls and ceilings.

One side of the duct system blows air through the branch ducts while the other side pulls air in. If the ducts are going to be concealed all seams need to be taped or caulked. Throw duct leakage into the mix and the problems are even worse. If you re used to putting ducts in the attic moving the ducts indoors probably won t be easy by martin holladay august 3 2018 a vented unconditioned attic is a terrible place to locate a furnace and ductwork.

If you live in a consistently humid climate a dehumidifier can help keep the air around your ductwork dry. The duct insulation should include a vapor barrier cover. Type of ductwork system the least expensive duct system is a radial system of flexible ducts in an attic running to ceiling grates. Turn your hvac system on and feel around all air duct connections for any air leaks.

Ductwork running along an open ceiling in the basement of a one story home is also more affordable to replace. Your first stop will be the main unit and its large ducts which are connected to the branch ducts that run throughout the house. If they are located in your attic be sure the area is properly insulated and any cracks or holes are sealed. Cut a piece of foil tape to length.

With hundreds of square feet of ductwork surface area in the attic and a δt of 75 f the air coming out of the vents in your home will be significantly higher than 55 f.