Showing results 1 - 50 of 128
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A roof drain is installed in an existing flat roof retrofitted with above-deck rigid foam insulation that is integrated with new air and water control layers
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A strip of OSB sheathing is installed along the perimeter when retrofitting a flat roof with a parapet
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Apply self-adhesive flashing over top edge of the wall flashing, diverter, and housewrap
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Blocking installed on a flat roof for a PV system rack is sealed around the edges with sealant then will be covered with self-adhering roof membrane to prevent water leakage
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Closed-cell foam is sprayed into roof cavities along the masonry parapet wall to form a continuous air barrier between the wall and the sheathing of the flat roof
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Closed-cell spray foam fills the roof joist cavities forming an air barrier between the masonry parapet wall and the roof sheathing
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Continuous L-metal flashing integrated with underlayment at roof-wall intersections
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Existing flat roof and wood-framed walls are retrofitted with a new fully adhered air barrier membrane plus polyisocyanurate rigid foam insulation and a roofing membrane water control layer
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Existing low-slope (“flat”) roof and brick masonry walls with a new fully adhered air barrier membrane plus polyisocyanurate rigid foam insulation and a roofing membrane water control layer
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Existing wall-to-lower roof transition retrofitted with a new strip of fully adhered air control transition membrane, new step flashing, new roof underlayment, and new cladding
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Existing wall-to-lower roof transition with a new strip of fully adhered air control transition membrane, new step flashing, new roof underlayment, and new cladding – view from eave
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Existing wall-to-lower roof with attic transition with a new strip of fully adhered air control transition membrane, new step flashing, new roof underlayment, and new cladding – view from eave
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Gutters and downspouts direct rainwater down and away from buildings to keep building walls and foundations drier
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High winds pulled the asphalt shingles and sheathing panels off this coastal home, although storm shutters protected the windows
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Ice dams form when warmth from the attic causes roof snow to melt and flow to roof eaves where it refreezes at the colder overhang and forms a buildup of ice causing more snowmelt to puddle where it can wick back through shingles and leak into the attic
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Improper flashing can allow rain water into walls, causing significant damage
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Improvised deflectors that are improperly integrated into the wall flashing and gutter are rarely sized to handle the volume of water that can run off the roof in a large downpour and they may contribute to water entry into the wall.
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In 2009 IECC CZ 5 and higher, install self-sealing bituminous membrane or equivalent over sheathing at eaves from the edge of the roof line to > 2 ft. up roof deck from the interior plane of the exterior wall.
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Install self-sealing bituminous membrane or equivalent at all valleys and roof deck penetrations
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Install shingle starter strip then kick-out diverter; attach to roof deck but not sidewall
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Installation of the Self-Sealing Bituminous Membrane in Relation to the Drip Edge and Roof Underlayment
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Metal cap flashing is installed over the roof parapet and extends down over the roofing membrane
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New coated OSB roof sheathing is installed over the existing sheathing of the flat roof and taped at the seams to provide a continuous air barrier
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Place first shingle and next section of sidewall flashing over upper edge of diverter
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Polyisocyanurate rigid foam insulation is installed in multiple layers with staggered, taped seams over the flat roof
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Provide flashing and sealing integrated with the air and water control layers for vents and other roof penetrations
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Retrofit an existing roof by installing rigid foam, new moisture and air control layers, new sheathing, and new cladding plus cavity insulation in the roof rafters to create an unvented attic
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Right - A lattice of 1X4 furring strips provides a ventilation gap between the decking and metal roofing for this shed roof.
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Right - Counterflashing tops a layer of step flashing which comes down above the asphalt shingle and a layer of L-shaped base flashing which comes down and extends below the shingle; the base flashing is adhered to the roof underlayment with mastic, shown
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Right - Here, air control is established by taping the seams of the plywood panel sheathing. The roof sheathing is also trimmed flush with the wall sheathing to allow a simple and airtight connection between the roof and wall assemblies
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Right - Step flashing along a chimney is integrated in a layered manner with asphalt shingle roofing and topped with counterflashing that is embedded into brick mortar joint above
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Right - The air control membrane installed over the roof sheathing is continuous. It connects to the air control of the wall around the entire perimeter without interruption. The roof overhangs have been cut off to make this connection continuous
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Right - These roof insulation panels are installed in multiple layers with joints offset both vertically and horizontally. The plywood nail base fastened to the roof framing holds the insulation layers together snuggly thus minimizing gaps
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Right - This shed roof is constructed with 1X4 furring strips installed over the decking and underlayment for ventilation beneath the metal roofing.
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Right - This tiny house has a mono-sloped shed roof angled toward the sun to provide maximum space for solar panels.
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Right – A chimney cricket is installed and flashed to direct rainwater around the chimney
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Right – A fully adhered roof membrane provides thorough water and wind protection in this mountain top location.