Showing results 1 - 100 of 199
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Impervious surfaces like patio slabs, sidewalks, and driveways that are within 10 feet of the home should slope away from the house.
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A drywell, shown here used for downspout catchment, can also be used to receive water from a French drain.
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A French drain contains a perforated drain pipe wrapped in rock and landscape fabric.
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A layer of pea gravel or crushed stone, 4 inches thick and sloped 5%, provides a pest-resistant ground break around the perimeter of a slab foundation
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A layer of pea gravel or crushed stone, 4 inches thick and sloped 5%, provides a pest-resistant ground break around the perimeter of a basement foundation
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A piece of siding is used as sill extension and to provide slope in the opening for the window, which is deeper because exterior rigid foam has been added
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A plastic fiber drainage mat rainscreen provides uniform support for the siding and allows moisture to flow horizontally and diagonally in addition to vertically.
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A swale and berm can be installed together across a slope to slow the downhill flow of water.
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Adding planted terraces to a sloped yard can slow down runoff and reduce erosion
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An engineered bioswale uses perforated pipe laid in rock and landscape fabric at the bottom of a vegetated trench to direct water away from a site.
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Apply self-adhesive flashing over top edge of the wall flashing, diverter, and housewrap
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Backflow prevention devices keep water and sewage from entering the home during a flood preventing damage and health and safety issues.
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Berms are compacted earth or gravel ridges that slow the flow of water from rain, riverine flooding, or storm surges in coastal areas.
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Berms, swales, bioswales, ridges, and vegetation all help to control rainwater runoff on residential sites.
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Bioswales or rain gardens filter storm water through vegetation and rock and sand substrate layers.
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Clean taping areas and install 3" tape on vertical joint of upper insulation overlapping the horizontal joint
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Comprehensive above-grade water management details for a crawlspace foundation include a capillary break over the crawlspace floor, slope the surface grade away, installing gutters that slope away, and capillary break under sill plate.
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Comprehensive water management features include a capillary break (≥ 6-mil polyethylene sheeting) at all crawlspace floors
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Concrete (4 inches thick at 5% slope) provides a pest-resistant perimeter around the foundation
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Concrete pavers set in 4 inches of sand provide a pest-resistant ground break at the building perimeter.
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Continuous L-metal flashing integrated with underlayment at roof-wall intersections
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Duct/pipe penetration with metal cap flashing and wood blocking for trim attachment
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Dune erosion caused by the combination of a hurricane and a nor’easter in Ocean City, New Jersey
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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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Good water management practices like sloping grade away from house, and installing gutters, perimeter drain pipe, a capillary break, and free-draining soils or drainage mat protect the foundation from water saturation.
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Heavy metal flashing protects the deck timbers and separates them from the wall at the wall-deck connection which is vulnerable to both ember entrapment and water damage.
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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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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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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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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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Install furring strips over house wrap to provide a rainscreen behind wood siding.
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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 an erosion control blanket to minimize soil loss on sloped ground that has no established vegetation
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Place first shingle and next section of sidewall flashing over upper edge of diverter
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Plan view of duct or pipe penetration through exterior wall showing flashing and air sealing details
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Plan view of electric box installation in exterior wall showing flashing and air sealing details
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Planting deep-rooted native grasses and shrubs on the banks of shorelines can help reduce the effects of erosion on sandy slopes
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Plywood or OSB panels are a cost-effective way to protect windows from wind-borne debris.
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Porous surfaces like pavers allow water to pass through and percolate slowly into the soil
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Proper gutter and downspout system terminates with final grade sloping away from the home
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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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Repair leaks and cracks, and cover holes in foundation floors and walls to minimize water and vapor entry.
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Retaining walls can prevent erosion and landslides and maintain access to critical infrastructure
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Retention walls, permeable pavement, french drains, drywells, and ditches all help to divert, collect, and manage the flow of stormwater on a site.
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Ridges can be constructed and planted to slow the downward flow of water and stabilize slopes.
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Right – The ties are bent at a 90 degree angle at the nail head and embedded into the mortar joint at least 1.5 inches.
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Right – The ties are bent at a 90 degree angle at the nail head and embedded into the mortar joint at least 1.5 inches.
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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 - 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 pipe penetration is properly flashed and furring strips are installed on each side in preparation for installing cladding
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Right - The water and air control layers are properly integrated around the hose bib
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Right - This duct penetration is properly flashed and integrated with the taped, foil-faced foam sheathing layer, which serves as the air and water barrier
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Right – A chimney cricket is installed and flashed to direct rainwater around the chimney
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Right – Furring strips provide a drainage and ventilation gap between the siding and the cork insulation.
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Right – Furring strips provide a drainage gap between the rigid foam and the siding.
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Right – House without gutters has waterproof liner, drain tile, and gravel bed extending more than 5 feet from foundation
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Right – If drip edge flashing is installed over fully adhered roof membrane at eaves, use flashing cement to seal the upper edge of the flashing
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Right – Install asphalt shingles over a starter strip set in an 8-inch strip of flashing cement
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Right – Rain barrel installed with an overflow spout terminating at least 5 feet from foundation