Showing results 3501 - 3600 of 4973
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The builder took several steps to make this southern California home fire resistant, including constructing with metal roofing, unvented soffits, and impact-resistant glass, and landscaping with rock, sand, and pavers.
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The builder was able to pack R-41 of blown fiberglass into the wall cavity formed by the double stud walls.
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The builder’s crews spray foam directly onto the ground to provide a vapor barrier and insulation layer under the slab.
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The builders sprayed the underside of the roof assembly with 6 inches of open-cell spray foam to create an unvented, R-48 insulated attic.
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The cabinet above this refrigerator will keep it from tipping forward during a seismic event
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The ceiling and sides of this corridor service chase in a multifamily building are air-sealed with mudded and taped drywall prior to installing pipes, wiring, and ducts.
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The ceiling and sides of this service corridor in a multifamily building are air-sealed with mudded and taped drywall prior to installing pipes, wiring, and ducts.
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The ceiling over an unconditioned space is insulated with closed-cell spray foam that fills the ceiling cavities and encapsulates the framing
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The chase is laid out on the plans (grey highlighted areas) to aid sub-contractors to execute the design
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The Climate Zone Map for the ENERGY STAR Window, Door, and Skylight Specification
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The combustible rigid foam insulation is protected by a non-combustible layer of mineral wool insulation; a 7/8 inch “hat-channel” provides the ventilation and drainage gap.
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The combustible siding product on the left side in this demonstration burns readily when exposed to a burning wood sample, while the noncombustible siding on the right does not ignite
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The components of a framed wall include from inside to out: gypsum, wood studs, OSB or plywood sheathing, and siding.
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The components of a roof include the rafter framing or trusses, purlins, plywood roof decking, underlayment, and the roof covering.
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The condensate line (amber-colored plastic tube) from the high-efficiency furnace drains into the sewer via the same drain pipe as the clothes washer
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The cool exhaust air from this heat pump water heater is ducted out of the room, inducing warmer intake air to enter through a wall grille
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The cool shingles on the right have been coated with a ceramic coating to reflect near-infrared radiation, resulting in a cooler roof as shown by these thermal images (red and yellow are hotter, green and blue are cooler).
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The cripple wall hiding the post-and-pier foundation of this wood framed house toppled when the house was shifted partially off its piers by an earthquake
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The cripple walls in this home gave way in the 1994 Northridge Earthquake, causing the walls to partially collapse.
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The daylight basement walls are made of concrete walls with integrated rigid foam and steel-faced concrete studs.
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The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the return side of the air handler for conditioning, mixing, and distribution
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The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the supply side of the central air handler for mixing and distribution
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The dehumidifier draws air from both a common area in the house and from outside, dehumidifies it, and adds it to the supply side of the air handler for distribution
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The design of this home incorporates multiple methods to reduce summertime solar gains including roll-down exterior blinds, wide exterior horizontal louvers, minimized east/west-facing windows, and vegetation.
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The developer added pavers and drains that discharge to underground drywells to reduce storm water runoff.
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The diverter should be adequately sized to direct all of the water away from the wall and into the gutter.
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The DOE Efficient Window Coverings website identifies twelve categories of interior window shading attachments.
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The double walls form a 12-inch cavity that was sheathed with a coated OSB then coated with 3 inches of closed-cell spray foam; they will be filled with 9 inches of blown fiberglass.
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The double-wall construction results in thick window sills which builder market as an architectural feature.
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The drain pans sit below the cooling coil to catch condensate and direct it to a drain line
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The drywall above the chase extends beyond adjoining top plates for a continuous air barrier
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The drywall above the dropped ceiling duct chase extends beyond adjoining top plates for a continuous air barrier
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The duct sealing spray injection system application tunnel inflates as the injection system operates
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The duct sealing spray injection system includes a blower/heater (background) and the sealant injection unit (foreground)
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The ductless air handler of a ductless heat pump can be mounted above the ceiling so that only the register is visible
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The ducts are located in conditioned space in open-web joists between the floors and supported to prevent sagging.
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The Durable Energy home is equipped with a water filtration system, which uses ultrafine membranes and carbon filters to filter city water or harvested rainwater to “bottled water-quality” for drinking water in the disaster-resilient home.
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The edge of this 1-inch HVAC filter indicates it's dimensions, allowing proper matching of filter to air handler
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The Efficient Window Coverings website allows direct comparison of various window attachment types based on thermal, visual, functional, and installation and durability criteria.
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The elevated concrete floor over this concrete column foundation uses rigid foam on its interior surface to reduce thermal bridging and risk of floodwater damage
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The elevator shaft in this multistory multifamily building has an exhaust fan that maintains a slight negative pressure to control odors; there is also a smoke vent that is dampered closed during normal conditions.
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The Energy Guide label on this heat pump water heater shows a first hour rating of 60 gallons; the low Estimated Yearly Energy Cost of $121 reflects the HPWH’s high Uniform Energy Factor (UEF) of (not shown on label)
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The energy rater has set up the duct leakage test by attaching the test duct to the home's return register and attaching the manometer to the fan.
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The energy rater turns off combustion appliances, including this atmospheric vented gas water heater, before conducting a blower door test.
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The energy recovery ventilator operates continuously to provide clean fresh air throughout the home.
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The ENERGY STAR logo indicates products that have been verified to meet energy efficiency and performance criteria.
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The ENERGY STAR logo on the manufacturer’s label indicates this is an ENERGY STAR qualifying exhaust fan
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The energy-saving double wall construction uses two side-by-side stud walls, providing an extra-thick wall cavity that can be filled with more than twice as much insulation as a 2x6 wall.
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The EnergyGuide label for this refrigerator shows that it is estimated to use 630 kWh/yr (approximately 1.7 kWh per day) based on a standard test procedure
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The enhanced comfort attic insulation consists of an ultra-efficient 25-inch-thick layer of blown cellulose providing a substantial R-90 insulation value.
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The entire roof of the home is covered with an ice-and-water shield to help protect against moisture damage.
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The exhaust fan housing may have holes that allow conditioned air to leak into the attic
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The existing 2x8 roof rafters were topped with OSB; two layers of 2-inch rigid foam; plywood; ice and water shield at rakes, eaves, and valleys; underlayment; and fiberglass shingles, plus 6 inches of open-cell foam under the decking.
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The existing dark tile roof on this home (top photo) was covered with a light -colored coating on day 6 (middle photo), resulting in a significant reduction in attic temperature and cooling energy consumption (bottom)
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The existing flat roof before removal of membrane shows lack of slope allowing water to pool on the surface
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The existing sheathing boards are removed near the perimeter of the flat roof and pressure-treated plywood is installed at the vertical face of the parapet
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The existing slab is retrofitted by coating with epoxy paint, then installing rigid foam insulation and a floating subfloor.
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The existing slab is retrofitted with epoxy paint, rigid foam insulation, sleepers (furring strips), and subfloor.
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The exposed riser shown here also supplies the radiator. A short pipe runs under the floor to the hand valve.
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The exterior of the home is wrapped in a continuous layer of rigid foam with all seams taped to provide a thermal, air, and moisture barrier and serve as a drainage plane, eliminating the need for house wrap.
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The exterior walls are double walls consisting of two 2x4 stud walls set 3 inches apart to form a 10-inch-thick wall cavity that is filled with blown-in fiberglass to provide a continuous R-40 blanket of insulation around the home.
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The exterior walls of this home consist of two wall cavities: a 2x6 wall with plywood sheathing plus 8-inch I-joists sheathed with engineered wood; both cavities are dense-packed with cellulose for R-60 total.
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The filter access panel on this vertical upflow air handler is located between the return ductwork below and the coils above.
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The flat retrofit foundation plate is used to connect the concrete foundation to the sill plate from the exterior of the building as part of a seismic retrofit
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The floor cavities under this attic kneewall are completely open to the unconditioned attic space and a prime target for wind washing
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The floor of the sealed insulated crawlspace is covered with a heavy plastic vapor-barrier sheathing that is taped at all seams and around the foundation piers to prevent water vapor from moving into the crawlspace.
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The floor slab is completely insulated with ICF foundation walls and R-20 (3 inches) of closed-cell foam that is sprayed directly onto the ground before pouring the slab.
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The fluid-applied asphalt coating provides a weather-resistant, moisture resistant layer around the house, serving as a continuous drainage plane and flashing for window and door openings.
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The flush cut method for seismic retrofit bracing of a cripple wall allows the plywood sheathing to be attached directly to both the cripple studs and the notched section of the mudsill
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The foam-filled concrete block walls are lined on the interior side with foil-faced rigid foam then topped with furring strips for attaching drywall.
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The foil-faced insulation behind this fireplace provides an air barrier and thermal shield.
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The foundation walls are ICF block providing two continuous layers (R-23) of insulation around the slab, which will sit on an additional 4 inches (R-20) of low-VOC EPS foam.
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The frequency, duration, and intensity of extreme heat events have increased every decade since the 1960s
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The furnace filter slot cover should fit tightly to minimize air leakage but it should not be taped or caulked to enable frequent filter replacements.
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The furring strips that provide a drainage gap behind the lap siding are wrapped with ≤ 1/8-inch screen at the top and bottom of the wall to keep out bugs and burning embers.
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The gap around this kitchen exhaust duct represents a significant source of air leakage to the unconditioned attic
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The geometry of this roof encouraged drifting of snow leading to heavy accumulation between the gables
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The goal of foundation moisture management is to construct the basement, crawlspace, or slab in a way that keeps moisture from getting in in the first place
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The green framing is lumber that was pressure treated with borate to increase its resistance to termites, mold, and moisture
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The green-lit panel next to the fan and light switches is an indoor air quality sensor that will automatically turn on the exhaust fan if it detects a rise in humidity or indoor air pollutants.
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The grille in the photo on the left brings air into a return air plenum under an air handler platform. As shown in the infrared image on the right, the plenum is not air sealed so hot attic air is being pulled into the air handler closet.
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The Habitat affiliate makes its own “ICF” foundation walls with rigid foam held in place with wood spacers.
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The heat pump water heater’s evaporator fan provides enough air movement for active ventilation of a small room when the exhaust is ducted; intake air enters passively through a wall grille
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The high-efficiency air-to-air heat pump is set in an overflow pan with an emergency shut off sensor in case the condensate tube were to clog and cause condensate to fill up the pan.
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The high-efficiency mini-split heat pump provides cooling and heating; a drain pipe carries condensate away to a location that meets local code requirements.
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The highly efficient double wall system consists of two sets of stud walls set side by side to create a 12-inch-thick double-stud wall cavity that is filled with a continuous blanket of R-44 dense-packed cellulose insulation.
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The home integrates roof-mounted solar hot water panels with an air-to-water heat pump; both sources feed into an 80-gallon stainless steel tank.
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The home is equipped with an advanced filtration system capable of removing 99.7% of contaminants from the indoor air.
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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.