U.S. Department of Energy U.S. Department of Energy Energy Efficiency and Renewable Energy

Image Gallery

A below-grade foundation wall with a damp-proof coating
A complete HVAC system includes ducted returns
A continuous layer of polyethylene covers the crawlspace floor and is attached to the wall with wood nailing strips
A continuous rim joist separates the garage and living space
A crane is used to install the SIP fireplace chimney chase
A damp crawlspace
A direct-vent sealed-combustion fireplace takes its combustion air directly from outside through a dedicated air inlet and vents combustion products directly outside
A direct-vent sealed-combustion furnace has dedicated pipes for combustion air and exhaust
A metal plate is used to connect top plates to one another
A moisture meter verifies that the moisture of the framing is below the recommended 18%
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 liner of the pre-insulated flexible duct
A portable CO monitor is used to test for ambient CO near a ventless combustion fireplace
A pumper is used to place the concrete into the foam form walls
A site-built rafter roof with a raised top plate allows for more insulation underneath
A standard site-built roof of rafters may pinch the insulation at the eaves
A structural spline made of a solid 2x is used where needed to meet structural load requirements at SIP panel seams
A surface spline reduces thermal bridging much more than a structural spline at SIP panel seams
A technician conducts a duct blaster test
A termite shield and a sill gasket are installed between the sill plate and the foundation on a raised slab foundation
A ventilation controller with a manual override is located on a central air handler fan that is located in an accessible location
A ventless gas fireplace has no chimney
A visible gap in the insulated sheathing introduces unwanted outside air, creating a thermal bypass and encouraging convective air flow
Advanced framing details throughout house including insulated and open headers
Advanced framing details throughout house limit use of lumber
Advanced framing showing open headers
Advanced framing uses less wall studs
After all holes through the ceiling are air sealed and the baffles have been installed, the insulation can be installed
After installing the house wrap over the SIPS, window flashing is installed
After securing the inner coil, cover the draw band and the seam with a generous amount of mastic
Air barrier and penetrations sealed between porch attic and conditioned space
Air barrier installed behind shower stall
Air barrier installed behind the tub
Air barrier installed under staircase (picture taken from house looking into attached garage)
Air barrier is air sealed
Air barrier is continuous across several components of the lower section of wall
Air barrier is installed between double wall framing
Air barrier is installed prior to porch attic framing
Air barrier is installed prior to porch attic framing
Air barrier is not air sealed
Air barrier is not continuous
Air barrier is present and installed between the floor system and unconditioned space
Air barrier is present between garage and conditioned space
Air barrier is present between garage and floor system
Air barrier is present between the dropped ceiling/soffit and the attic
Air barrier is present between the dropped ceiling/soffit and the attic
Air barrier not sealed
Air barrier not sealed (picture taken from garage looking into house)
Air barrier not sealed between porch attic and conditioned space
Air barrier not sealed between porch attic and conditioned space
Air barrier sealed
Air flow is produced when central HVAC fan is energized (set thermostat to “fan”)
Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities
Air inlet is located in a convenient place for homeowner to clean
Air inlet is not convenient for cleaning and located next to exhaust outlets
Air leakage path in a common wall
Air seal and insulate around the exhaust fan with a rigid foam box
Air seal and insulate drawer and closet boxes in attic kneewalls
Air seal and insulate light tube
Air seal door and window rough openings with backer rod, caulk, or nonexpanding foam
Air seal floor joist cavities under kneewall with rigid foam, plywood, or OSB caulked in place
Air seal rough opening from inside
Air seal the attic access panel with weather stripping
Air seal the attic access pull-down stairs opening with weather stripping
Air seal the attic kneewall door opening with weather stripping
Air seal the electrical panel
Air sealing behind a staircase
Air-tight electrical boxes have built-in gaskets and self-sealing wire holes
All ceiling, wall, floor, and slab insulation shall achieve RESNET-defined Grade I installation
All connections to trunk ducts in unconditioned space are insulated
All corners insulated ≥ R-6 to edge
All ENERGY STAR-qualified windows display the ENERGY STAR label
All headers above windows and doors insulated
All holes, gaps, and seams of the rigid air barrier are air sealed
All insulated sheathing boards are installed according to the manufacturer’s recommended fastening schedule and taping specifications
All interior/exterior wall intersections insulated to the same R-value as the rest of the exterior wall
All of the exhaust fans are wired to one labeled switch at the electrical panel
All other ceilings
All other exterior walls
All other supply ducts and all return ducts in unconditioned space have insulation ≥ R-6
All return air and mechanically supplied outdoor air pass through filter prior to conditioning
All seams are caulked to completely air seal the subfloor of the cantilever
All seams between structural insulated panels (SIPs) foamed and/or taped per manufacturer's instructions
All sill plates adjacent to conditioned space sealed to foundation or sub-floor with caulk. Foam gasket also placed beneath sill plate if resting atop concrete or masonry and adjacent to conditioned space
Allow two to three feet of straight duct run from the fan exhaust port to the first elbow
An all-terrain forklift is used to move and stage the panels
An HRV or ERV provides balanced ventilation
An insulated spline is another option for avoiding thermal bridging at SIP panel seams
Application of window and door nonexpanding foam sealant
Apply caulk to wall framing
Apply roof underlayment over roof deck and up the sidewall over housewrap
Apply self-adhesive flashing over top edge of the wall flashing, diverter, and housewrap
Appropriate door framing installed
Appropriate use of framing members to support double windows and additional cripples for drywall purposes
Approved common assembly installed
Assembled section of fiber board duct
At least one MERV 6 or higher filter installed in each ducted mechanical system
At the outlet of the dryer exhaust duct, install a hooded vent with a louvered damper
At top of walls adjoining unconditioned spaces, continuous top plates or sealed blocking using caulk, foam, or equivalent material
Attach the interior 2x4 wall to the exterior wall top plate with a flat metal connector plate

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