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Flashing refers to thin pieces of impervious material installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier system.
What is a flashing on a house?
As all builders know, flashing is a thin sheet or strip of water-resistant material that’s installed at roof intersections and projections, around windows and doors, and along the tops of foundation walls to direct water flow away from the home. Roofs have chimneys, dormers, ridges and valleys.
What is flashing and why is it important?
Flashing is made of materials that are not easily penetrated by water. It serves to redirect water away from the joint and down into the gutters or off the roof. Without flashing, your roof would almost certainly develop leaks over time.
Where is flashing used in a building?
Flashing is used at the intersection of building components such as where a chimney protrudes through a roof, where roof planes meet in a valley, or around plumbing vents protruding through a roof, or at the intersection of a wall and a lower roof surface.
What are the types of flashing?
Common Types of Flashing: Continuous flashing: Also known as “apron flashing”. Drip edges: Often installed under the roofing felt along the eaves of a roof. Step flashing: Step flashing is a rectangular piece of flashing bent 90 degrees in the center. Valley flashing: A W-shaped piece of metal flashing.
What does flashing mean?
Flashing: “Flashing,” or exhibitionism is characterized by intense, sexually arousing fantasies, urges or behaviors involving exposure of the individual’s genitals to an unsuspecting stranger. The individual with this problem, sometimes called a “flasher,” feels a need to surprise, shock or impress his victims.
What is flashing on a foundation?
Foundation flashing is designed to be installed at the base (bottom) of the wall panel. The foundation flashing fits behind the wall panel and directs water away from the building.
What materials are used for flashing?
What materials are used for flashing? Flashing can be made from many different materials, including metal (copper, aluminum, stainless steel, lead, etc.), plastic, or composite materials. The most durable (and, therefore, most expensive) flashing material is metal sheet flashing.
Is flashing part of the roof?
Flashing is a critical part of your roof that should always be checked out during annual roof maintenance. But roof flashing is just one roofing material that you need to know about. That’s why we have another article breaking down the 9 crucial roofing materials that make up your roof.
Where are flashings installed?
Timber window frames require flashings under the sill to stop water migrating to the inside wall linings. Side flashing is also necessary to prevent water migrating to the back of the stiles. Some manufacturers provide a groove in the stile in which to tuck the flashing.
What is the best flashing to use?
You will still routinely find copper flashing around chimneys. Steel: Steel is usually the material of choice for flashing. It’s malleable, has aesthetic value and, when galvanized, is corrosion-resistant.
What is roof pipe flashing?
Pipe flashing, sometimes referred to as a roof boot, is manufactured to seal tightly around small ventilation pipes, plumbing, and other vents and equipment that protrude from the roof of a home or commercial building. The base is typically a flexible metal so that it is compatible with virtually any roofing material.
What is flat roof flashing?
Flat Roof Flashings On flat roofs – particularly those made from EPDM – edge flashing is a two-piece system that does more than prevent leaks. Once the roofing membrane is in place, metal flashing is installed around the edges of the roof so that the flashing covers both the horizontal and vertical edges.
What is drip edge flashing?
Drip edge is metal flashing installed at the edges of the roof to keep water away from your fascia and from getting underneath your roofing components. If your roof doesn’t have drip edge, water gets behind your gutters and rots out both your fascia board and roof decking.
What is the sentence of flashing?
Flashing sentence example. He grabbed her wrist, his eyes flashing fire. Another vehicle came down the hill, a red flashing light attached to the top. Linda called, flashing a smile.
What is flashing in control valve?
Flashing occurs when liquid flows through a control valve and vaporizes, remaining a vapor. Flashing is a concern because it limits flow through the control valve and the liquid-vapor mixture is highly erosive. Metal erosion caused by flashing is smooth and shiny in appearance.
What is flashing Urban?
Slang. to open one’s clothes and expose the genitals suddenly, and usually briefly, in public.
Does flashing go over or under house wrap?
The most important part of weatherproofing begins before the window goes in. After the house wrap is cut, tuck the bottom flap into the house and install sill flashing. Then fold in the sides of the house wrap, but leave the top flap alone.
What is a chimney flashing?
What is Chimney Flashing? Chimney flashing is a type of roof flashing that creates a waterproof seal to protect your chimney and roof from water damage and penetration. Step flashing is an L-shaped piece of metal that lies under the roofing shingles and along the brick of your masonry chimney.
