Showing results 1 - 138 of 138
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Taped plywood provides an air barrier beneath the cork insulation installed on the exterior of this home.
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A self-adhering weather-resistant barrier is installed over the existing sheathing of this retrofit home to provide air sealing and a drainage plane before installing new metal and wood siding on the home.
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Air barrier is continuous across several components of the lower section of wall
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Air seal and insulate double-walls that are half-height or full-height walls used as architectural features in homes.
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Draft stopping and air barrier at tub enclosure − plan view
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Floor cavity air pressure is measured by placing a tube into the floor cavity through a small drilled hole
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Floor cavity pressure is measured by inserting a tube into the floor cavity using an extension pole
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House wrap is sealed at all seams and overlaps flashing to serve as a continuous drainage plane over the exterior walls.
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Identify what materials will constitute the continuous air barrier around the building envelope.
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Infrared imaging shows cold conditioned air pouring out of the open floor cavities under this attic kneewall into the hot unconditioned attic
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Install a rigid air barrier to separate the porch attic from the conditioned space.
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Install all layers of the drainage plane to overlap, not underlap, to direct bulk water down and out of the wall.
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Insulating sheathing is installed on exterior of an existing framed wall with water control between existing sheathing and insulating sheathing
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Limited attic access can make inspections for missing air barriers and insulation challenging
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Limited attic access may make it necessary to use a bore scope when inspecting for missing air barriers and insulation in existing buildings.
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Right - A smart vapor barrier wraps the walls and window frames of this home. Seams are taped to provide an air- and water-resistant barrier.
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Right - Closed-cell spray foam is installed as a skim coat to provide air tightness to an exterior wall cavity before installing batt or blown cavity insulation.
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Right - House wrap is overlapped “shingle” style to direct moisture down and away from the house; seams will be taped so house wrap serves as both an air and weather barrier.
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Right - Plywoood sheathing is taped at the seams to create a continuous air barrier that prevents air infiltration through critical junctures in the wall, such as at corners and between floors.
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Right - These attic knee walls are insulated with rigid foam and sealed with spray foam to form a continuous air barrier at the gable end of this cathedral ceiling.
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Right - Walls and ceilings shared by the garage and living space must be air sealed and insulated.
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Right – Air barrier and penetrations sealed between porch attic and conditioned space
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Right – Air barrier installed under staircase (picture taken from house looking into attached garage)
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Right – Closed-cell spray foam insulation in the shared wall between the garage and living space helps to air-seal the wall and protect occupants from garage pollutants.
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Right – Coated OSB provides a weather-resistant air barrier for this envelope of this home.
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Right – Coated sheathing is taped at all seams to serve as an exterior air barrier on the walls.
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Right – Every seam and nail hole in these garage-to-house walls is sealed with tape.
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Right – The building felt is installed on all exterior walls and provides a complete drainage system
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Right – The rigid insulation covers all exterior walls and all seams are taped to provide a complete drainage system
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Right – The water-resistant barrier covers the entire house and the seams are taped to provide a complete drainage system
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Right – This attic knee wall and the floor joist cavity openings beneath it are being sealed and insulated with spray foam.
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Right – This foil-faced foam sheathing has taped seams and proper flashing details so it can serve as a drainage plane.
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Right-- IR photo shows how effectively spray foam insulated/air sealed attic kneewall and the floor cavities under kneewall
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Stucco is installed over rigid insulation, which is installed over a drainage plane consisting of a drainage gap and building wrap layer over the sheathing
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The “institutional” perfect wall works in all climate zones; water, air, vapor, and thermal control layers are exterior of the sheathing, assembly allows drying to interior and exterior
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The attic knee walls were constructed from 2x6s and insulated with R-19 batt, backed with 1 inch of XPS foam board with taped joints to provide a solid air barrier over the insulated surfaces.
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The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation
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The builder in this very cold climate installed three layers of unfaced mineral wool batt in the double wall with a code-required vapor barrier between the middle and inner layers of wall insulation that is taped to barriers in the ceiling and floor.
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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 I-joist is continuous along the shared wall and serves as a natural air barrier between the garage and the house
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The Perfect Wall includes water, air, thermal, and vapor layers with continuous insulation exterior of the sheathing to reduce the condensation potential in the wall.
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The wall behind the fireplace is an exterior wall and requires a thermal barrier that is continuous with the rest of the wall’s insulation
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This farmhouse was retrofit by removing the existing siding and adding taped insulated sheathing and battens before installing new siding
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This house design in the Hot-Humid climate uses a slab foundation, masonry walls, and an Exterior Insulation Finish System (EIFS) cladding.
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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.
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Use caulk or spray foam to air-seal all four edges of the blocking material in each joist bay.
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When using I-joists, make sure to fill in the gaps on each side of the blocking material to air-seal the joist bay where a wall separates conditioned and unconditioned spaces.
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Wrong - Rigid insulation blocking is installed but not air-sealed with spray foam around edges.
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Wrong - The air barrier is not sealed (picture taken from garage looking into house).
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Wrong - The faced batt insulation does not provide an air barrier in the joist bay between the garage and the conditioned space of the home.
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Wrong - This IR image of a second-floor landing shows that attic air is flowing far into the interstitial floor cavity of the second-floor landing
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Wrong - This IR image shows where hot attic air has penetrated into the floor cavity that lies behind the stairwell wall
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Wrong - This is a poorly sealed chase with no solid air barriers along the sides of the chase and no caulk around the electrical wires installed through the ceiling of the chase.
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Wrong - Wall cavities behind shower are not completely filled with insulation and are lacking the solid interior air barrier.
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Wrong - When ceiling joists over a garage run perpendicular to the adjoining wall, the joist bays must be blocked and sealed to prevent garage fumes from entering the living space
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Wrong – An opportunity to use structural members as a natural air barrier was missed in this home and blocking was not initially planned for between the garage and living space.
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Wrong – Insulation does not fill entire cavity nor is there an air barrier present between the double wall
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Wrong – The backing on this knee wall was not air sealed prior to adding insulation.
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Wrong – The batt insulation on this knee wall is not properly supported and there is no air sealed rigid backing to provide a solid air barrier.
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Wrong – The rigid sheathing seams are not taped and the gaps could cause moisture problems
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Wrong – The water-resistant barrier is not complete and the holes and gaps could cause moisture problems
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Wrong – There is not a water-resistant barrier installed underneath the exterior finish of the walls
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Wrong – This second-story floor plan has red lines that indicate openings from the attic into the interstitial floor space
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