Skip to main content

Resources

Explore a library of home construction and renovation guidance and easily search through galleries containing hundreds of building science-related photos, drawings, videos, CAD files, case studies, and presentations.

Filter

View Library

Showing 1 - 24 of 557 results:

Image:

A central fan-integrated supply system uses a fresh air intake ducted to the home's central furnace or air handler unit to supply fresh air throughout the home

A central fan-integrated supply system uses a fresh air intake ducted to the home's central furnace or air handler unit to supply fresh air throughout the home
Image:

A comparison of a dirty furnace filter on left and clean filter on right. Dirty filters block airflow and make the furnace or air handler work harder.

A comparison of a dirty furnace filter on left and clean filter on right. Dirty filters block airflow and make the furnace or air handler work harder.
Image:

A complete HVAC system includes ducted returns

A complete HVAC system includes ducted returns
Image:

A constant airflow regulator is a modulating orifice that automatically regulates airflows in duct systems to constant levels

A constant airflow regulator is a modulating orifice that automatically regulates airflows in duct systems to constant levels
Image:

A constant airflow regulator is fitted into the neck of the supply duct to control air flow to deliver the design airflow regardless of pressure variations

A constant airflow regulator is fitted into the neck of the supply duct to control air flow to deliver the design airflow regardless of pressure variations
Image:

A Corsi-Rosenthal Box is a highly effective DIY air cleaner made of easy to obtain materials such as HVAC filters, a box fan, cardboard, and tape

A Corsi-Rosenthal Box is a highly effective DIY air cleaner made of easy to obtain materials such as HVAC filters, a box fan, cardboard, and tape
Image:

A duct leakage test is performed on a ducted heat pump system using a duct tester (blower fan) and a digital manometer.

A duct leakage test is performed on a ducted heat pump system using a duct tester (blower fan) and a digital manometer.
Image:

A ducted central return brings air from central return registers back to the air handler through insulated, air-sealed ducts

A ducted central return brings air from central return registers back to the air handler through insulated, air-sealed ducts
Image:

A floor cavity between the first and second floor can provide a conditioned space for HVAC ducts if the rim joists are insulated and air sealed, if sufficient space is available, and if open-web floor joists are used

A floor cavity between the first and second floor can provide a conditioned space for HVAC ducts if the rim joists are insulated and air sealed, if sufficient space is available, and if open-web floor joists are used
Image:

A nylon draw band and tensioning tool are used to secure the inner coil of the pre-insulated flexible duct

A nylon draw band and tensioning tool are used to secure the inner coil of the pre-insulated flexible duct
Image:

A nylon draw band and tensioning tool are used to secure the inner liner of the pre-insulated flexible duct

A nylon draw band and tensioning tool are used to secure the inner liner of the pre-insulated flexible duct
Image:

A reciprocating saw works well to cut PVC pipe during pool pump installation

A reciprocating saw works well to cut PVC pipe during pool pump installation
Image:

A rigid metal duct vents the exhaust fan.

A rigid metal duct vents the exhaust fan.
Image:

A second layer of rigid insulation is installed over the 2 in. by 4 in. retaining strip

A second layer of rigid insulation is installed over the 2 in. by 4 in. retaining strip
Image:

A technician assembles the spray sealant injection system to seal HVAC ducts from the inside

A technician assembles the spray sealant injection system to seal HVAC ducts from the inside
Image:

A technician conducts a duct blaster test

A technician conducts a duct blaster test
Image:

A triple-filtered energy recovery ventilator is installed with individual supply ducts to provide fresh air to each room.

A triple-filtered energy recovery ventilator is installed with individual supply ducts to provide fresh air to each room.
Image:

After inserting the new filter, replace the filter slot cover to minimize air leakage and heat loss.

After inserting the new filter, replace the filter slot cover to minimize air leakage and heat loss.
Image:

After securing the inner coil, cover the draw band and the seam with a generous amount of mastic

After securing the inner coil, cover the draw band and the seam with a generous amount of mastic
Image:

Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities

Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities
Image:

Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions

Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions
Image:

Air seal all holes and seams in the furnace cabinet with mastic, foil tape, or putty

Air seal all holes and seams in the furnace cabinet with mastic, foil tape, or putty
Image:

Air seal and insulate flex ducts

Air seal and insulate flex ducts
Image:

Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.

Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.