flashings
Metal weather barriers
Flashings are thin pieces of sheet metal or other material used in construction to prevent water from entering joints or seams—where a roof meets a wall, around chimneys, skylights, or windows.
The material directs water away from vulnerable points: The roofer replaced the flashings around the chimney.
Without proper flashings, leaks develop.
Dense metal, symbol Pb
- copperReddish-brown metallic element
- zincElement thirty
- aluminumElement thirteen
- galvanized steelZinc-protected iron alloy
stainless steel · rubber · PVC · bituminous · elastomeric · polyurethane · silicone · neoprene
Vertical smoke passage
- valleyLow ground between heights
- ridgeNarrow raised strip
- eavesProjecting roof edges
- skylightWindow in a roof
vent · apron · drip edge · counterflashing · gable · soffit · fascia · flange
Thin tissue sheet
- watertightPrevents liquid from passing
- sealantGap-blocking substance
- moisture barrierMaterial blocking water transfer
- leak preventionStopping unwanted fluid escape
water diversion · drainage · runoff · infiltration · weather resistance · hydrophobic
lead
Dense metal, symbol Pb
galvanized steel · stainless steel · rubber · PVC · bituminous · elastomeric · polyurethane · silicone · neoprene · sheet metal
chimney
Vertical smoke passage
skylight · vent · apron · drip edge · counterflashing · gable · soffit · fascia · flange · dormer
membrane
Thin tissue sheet
- watertightPrevents liquid from passing
- sealantGap-blocking substance
- moisture barrierMaterial blocking water transfer
leak prevention · water diversion · drainage · runoff · infiltration · weather resistance · hydrophobic
soldering
Low-temp metal fusion
- bendingCurving from straight
- crimpingFolding by compression
- overlappingCovering part of another
bedding · tucking · sealing · caulking · fastening · nailing · adhering · embedding · lapping · hemming
- chimneysflue, chimney liner, chimney cap, chimney stack, chimney sweep
- facadesfacade, curtain walls, front, glass facades, false front
flashingsgaps
Unfilled spaces between
penetrations · openings · breaches · leaks · drains
flashingsshingles
Overlapping roof cladding
roof tiles · cladding · siding · sheathing · decking
flashingsshingles
Overlapping roof cladding
roofing tiles · roof decking · slate tiles · asphalt shingles
- flashing lightsIntermittent bright signals
- flashing backReturning mentally to past
- flashing redPulsing warning light
- flashing yellowBlinking amber traffic indicator
- roof flashingMetal sealing building joints
- chimney flashingWeatherproofing at roof joints