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The home is sheathed with rigid foam insulation and all seams and holes are taped to provide a continuous air barrier.
The home’s slab-on-grade foundation is wrapped in a blanket of rigid foam extending completely under the slab and along the edges.
The improved three-stud corner allows insulation to be installed later, in sequence
The inner liner of the flex duct is fastened to the collar with a tension tie, the connection is sealed with mastic, then the outer layer is pulled over and sealed with mastic or foil tape (Steven Winter Associates 2013).
The Larsen-truss 9-inch wall cavities were covered with a smart vapor membrane that was fastened to the trusses with furring strips, which also provide an air gap behind the wood siding; each truss cavity is then filled with blown cellulose.
The main trunk line of the ducts runs within an insulated duct chase installed in a notch designed into the roof trusses that runs the length of the home to provide supply air directly to most of the home’s ceiling registers.
The missing top plate in a kneewall was covered with lumber and rigid foam insulation and then sealed with spray foam
The original corner seam is air-sealed with caulk, then rigid foam is installed on the existing garage ceiling and walls, and finally covered with drywall.
The OSB roof decking product comes with an adhered radiant foil barrier which helps to prevent heat transfer in or out of the vented attic, while R-13 unfaced fiberglass fills the advanced-framed 2x6 walls.
The retrofitted flat roof has PV panels and walking mats installed over the roofing membrane
The rim band connecting the insulated precast concrete basement walls to the floor joists above is spray foamed to provide air-sealing and insulation in this hard-to-seal juncture.
The rim joists and top plates are air sealed and insulated with open-cell spray foam while the walls are filled with blown fiberglass.
The sealed, insulated crawlspace is a clean, dry location to house the main floor heating ducts and also provides bonus storage space.
The seams in the ceiling drywall are sealed from the attic side with spray foam.
The soffit dam and baffle allow air to flow through the vents without disturbing the insulation covering the top plates
The spray foam-insulated attic provides a temperate place for the ERV ducts, which provide filtered fresh air to every room in the house.
The tape is covered with mastic to ensure an airtight seal between the duct and the fitting
The thermal boundary for a gable roof can be located at either a) the flat ceiling with a vented attic or b) the roof line for an unvented attic
The unvented attic is insulated along the underside of the roof deck with 7 inches (R-49) of closed-cell spray foam, providing vaulted ceilings and a conditioned knee wall space for ducting.
The use of blown-in fiberglass insulation allows the double wall cavity to be filled in completely with no voids that could create cold spots in the walls.
The wall’s concrete blocks are filled with foam and covered with an interior continuous thermal blanket of rigid foam insulation.
The walls and ceilings of this post-and-beam home are filled with netted blown fiberglass.
The wood blocking for future PV panel installation extends above the surface of the top layer of polyisocyanurate rigid foam insulation installed as part of a flat roof retrofit
Thermally isolate heated garages in multifamily buildings from ambient space, and thermally isolate all garages in multifamily buildings from interior occupied space. This parking garage is thermally isolated from space above with spray foam insulation.
These below-grade walls are insulated along the exterior with R-5 of bug-resistant high-density rigid fiberglass insulation installed over damproofing.
These factory-built walls consist of 9.5-inch I-studs sheathed with coated OSB, faced with OSB, and dense-packed with cellulose; a second interior surface of drywall is added to provide a 1.5-inch cavity for electrical wiring.
This 2x6 wall is advanced framed and filled with dense-packed cellulose insulation.
This 4-inch layer of rigid foam insulation (R-20) will be sandwiched between two layers of concrete poured on site for a highly insulated foundation wall.
This assembly can be used to thermally isolate heated or partially heated garages with slab foundations from the exterior in multifamily row houses/townhouses in IECC Climate Zones 3 and higher.
This assembly for above-grade and below-grade garage walls in any climate zone uses continuous rigid insulation along the interior of the wall.
This assembly for above-grade or below-grade garage walls in any climate zone uses a hybrid of continuous rigid insulation and cavity insulation on the interior side of the wall.
This attic is insulated to R-64 with a hybrid application of 11 inches of open-cell spray foam (R-4.45/in) plus 2 inches of closed-cell spray foam (R-7.4/in) that completely fills the roof rafter cavities and encases the rafters.
This attic was insulated with 5 inches of closed-cell spray foam on the underside of the roof deck plus 6.5 inches of blown fiberglass covered with sheetrock as a firebreak for a total R-58 roof assembly insulation value.
This basement is insulated on the exterior with rigid foam over dampproofing, with granular backfill and footing drains to facilitate drainage away from the foundation, a termite shield to protect from pests, and cellular PVC to protect the rigid foam.
This builder applied an air-sealing layer of spray foam along the underside of the roof deck and the inside of the walls before filling the wall cavities with blown cellulose.
This builder installs spray foam in exterior wall cavities where tubs and showers will be installed to air seal and insulate the exterior wall.
This close-up of an exterior wall retrofit of a masonry brick home shows the fluid-applied water and air control layer (white), 2x4 furring strips and two layers of rigid foam insulation (pink), then 1x4 furring which provides a ventilation gap
This community of production homes in central New York state was built with insulated concrete forms (ICFs), which provide a highly insulated, airtight structure that is fire-, pest-, wind-, and earthquake-resistant.
This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.
This exterior wall retrofit permits drying to the exterior of a sill plate installed on an untreated flat foundation wall
This exterior wall retrofit permits drying to the exterior of a sill plate installed on an untreated irregular foundation wall
This fiberglass batt insulation has a kraft paper facing that is correctly stapled to the face rather than the sides of the wall studs to minimize compression.
This floor assembly above a vented crawlspace controls vapor and heat transmission by using foil-faced isocyanurate rigid foam insulation installed underneath the floor joists and fiberglass insulation in the floor joist cavities
This Habitat for Humanity builder ordered roof trusses with a 2-foot by 2-foot notch next to the center post then lined the cutout with rigid foam to form an insulated central duct chase to bring the heating and cooling ducts within the conditioned space.
This heated garage plenum is insulated along the bottom and sides, and the insulation is fully aligned with an air barrier. The insulation at the bottom of the plenum space meets IECC insulation requirements.
This heated garage plenum space is insulated along its top, bottom and sides, and the insulation at the top of the plenum meets IECC requirements. The insulation along the top and sides is fully aligned with an air barrier.
This home has a cost-saving shallow frost-protected foundation that uses rigid foam laid vertically at the base of the 16-inch-deep footers to protect the foundation from frost damage.
This home has heat loss through the roof, leading to ice dam formation and structural issues during winter months.
This home’s 2x6 advanced framed walls are insulated and air sealed with 3 inches of closed-cell spray foam.
This home’s double-wall structure consists of two 2x4 walls set two inches apart, then sheathed on the exterior and netted on the interior to create a 9.5-inch wall cavity that is filled with blown fiberglass insulation.
This home’s exterior walls consist of two 2x4 walls; the R-49 double wall cavity is filled with 2 inches of closed-cell spray foam plus dense-packed cellulose.
This home’s exterior walls include Larsen trusses, 9-inch I-joists attached through exterior sheathing to wall studs creating a 9-inch wall cavity that was filled with blown insulation and forms extra deep windowsills.
This hot climate zone home uses high quality batt insulation between studs to insulate this connecting garage wall.
This hot climate zone home uses high quality batt insulation to insulate truss-joist headers.
This house with an insulated slab is protected from pests with a termite shield at the sill plate, borate-treated framing, insect screen covering bottom of furring air gap, and brick veneer over slab-edge insulation
This house with interior insulated crawlspace is protected from pests with termite shield at sill plate, borate-treated framing, flashing at end of wall insulation, and a termite inspection gap at the top of the rigid foam
This Kalamazoo Habitat for Humanity affiliate installs one layer of foam exterior of the studs and a second layer in between the staggered studs which are set only 2 inches apart to simplify the installation of additional fiberglass batt insulation.
This kneewall has no top plate and the resulting gap provides a wide-open pathway for air and vapor to travel between the living space and the attic
This roof was insulated above the roof deck with 5.5 inches (R-38.5) of closed-cell spray foam.
This Texas homes uses a slab foundation including a 4-in.-thick post-tensioned monolithic slab with turned-down edges poured over a 6-mil polyethylene vapor barrier and capillary break; slab edge insulation is not used due to termite risk.
This unfaced fiberglass completely fills the wall cavities, with RESNET Grade 1 insulation.
This vaulted ceiling has 7 inches of closed-cell spray foam plus an R-22 unfaced mineral wool batt for a total attic insulation value of R-68.
This wall assembly for above-grade garage walls uses cavity insulation and should only be used in IECC Climate Zones 4 or lower due to the risk of condensation on the interior surface of the concrete wall.
Three inches of closed-cell spray foam (R-19) and 7.5 inches (R-28) of open-cell spray foam was installed below the roof sheathing in this cathedral ceiling.
To attach the flex duct to a main trunk duct or any other connection, the flex duct is pulled over the connecting collar at least 2 inches past the raised bead, then the insulation is pulled back
To ensure a complete air barrier between the garage and the house, the wall between the garage and the house was insulated and air-sealed with four inches of high-density spray foam.
To reduce the risk of condensation on the interior of the roof sheathing in cold weather, the ratio of exterior (above-deck) insulation must be increased as a percent of total attic insulation as outside temperature decreases
Trunk to duct connections are properly insulated and have been sealed with mastic
Two layers of XPS are installed with staggered seams over a liquid-applied membrane on the structural sheathing
Two pieces of flex duct are spliced together with a metal sleeve, nylon draw bands, mastic, metal tape, and more mastic
Two-stud corner using drywall clips; detail shows nail placement for exterior trim
Two-stud corners with drywall clips use the least wood and give the best thermal performance
Underneath the roof sheathing and two exterior layers of rigid foam, the builder stapled netting to the underside of the rafters and filled the roof cavities of the unvented attic with blown-in fiberglass insulation.
Unfaced batt and blown fiberglass wall insulation are installed to RESENET Grade 1 standards with no gaps or voids.
Unfaced fiberglass batt insulation is installed to completely fill the wall cavities and is sliced to fit around wiring, piping, and other obstructions in the wall cavities
Unvented air-sealed crawlspace is insulated along the perimeter walls with rigid foam
Unvented crawl space with interior insulation - designed for termite resistance in heavily infested areas
Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and taped top edge of existing house wrap or building paper
Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition
Unvented roof assembly at rake retrofitted with spray foam installed along the underside of the roof deck and extended to the rake edge to insulate and air seal the attic
Use flashing tape to seal around any pipes or vents that penetrate through the foam
Using dry wall clips or a 1x nailer strip to avoid the third stud in corners provides more room for insulation and reduces lumber.
Vapor-permeable mineral wool insulation is installed on the exterior side of the sill beam during an exterior wall retrofit to allow the sill beam to dry to the outside
Vented roof assembly at eave retrofitted with rigid foam, spray foam, and fully adhered membrane to air seal the top of wall-to-roof transition
Vented roof assembly at rake retrofitted with spray foam and additional insulation installed at the attic floor and extended to the rake edge
Walls in cold climates with a Class 3 vapor retarder (latex paint) and a vapor-open continuous insulation like mineral wool allow drying to the interior or the exterior
Walls in cold climates with a polyethylene vapor barrier interior of the wall cavity should have either no exterior insulation or a vapor-open continuous insulation like mineral wool that allows drying to the exterior