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Water leakage around windows and doors is a major problem in new construction. Follow these proven window flashing details for a leakproof installation.
- Prepare The Rough Opening with Housewrap and Pan Flashing
- Caulk, Shim, and Nail The Window in Place
- Lap The Tape Shingle Style
- Mechanical Flanges Require Extra Attention
Most builders make an X-cut in the housewrap and staple the resulting tabs into the opening prior to installing the window. But folding the top tab into the opening gives water a way in behind the window’s top flange. Instead, cut a top tab that covers the window’s top flange after the window is installed. Then add pan flashing to collect and drain...
With the rough opening set, it’s time to install the window. Most manufacturers require the side and top flanges to be caulked to the perimeter of the rough opening. They illustrate adding the caulk to the flange, but we like to add it to the building instead so that it doesn’t get all over our hands as we put the window in. Regardless, make sure t...
Self-adhesive flashing tapes generally break down into two types: asphalt and butyl-based. Asphalt-based tape can damage certain types of vinyl, so check the window’s specs before using it. Butyl tape is easier to work with. It doesn’t have an aggressive initial tack, but its adhesiveness increases over time. When possible, we use tapes made by the...
Not all flanged windows are made the same. The windows shown in this article have an integral nailing flange, which means that the flange is part of the window’s exterior cladding. Integral flanges are a good design because there aren’t seams or joints for water to sneak past. Hinged (photo, left)) and non-hinged (photo, right) mechanical flanges a...
- Rob Moody
Dec 27, 2023 · Window Flashing, also known as Drip Cap, protects the top of exterior windows and doors from water infiltration. When properly installed, Window Flashing will protect the top of windows and reliably channel run-off water away from the building structure. Window Flashing is required by most residential and commercial builing codes.
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- Gibraltar Building Products
- $7.54
Flashing a window in a metal building is a critical step to ensure the structure’s durability and weather resistance. This process involves installing a protective layer around the window to prevent water leakage, which can lead to structural damage over time.
Part of the series: How to Replace Windows. Learn how to install metal flashing for window trimming from a window installation engineer in this free video on remodeling your house....
- 2 min
- 657
- ExpertVillage Leaf Group
Riverside provides window sill pan and door sill pan flashing metal to general contractors, roofers and do-it-yourself home owners. Special pricing available for large quantities. See images for installation method examples.
People also ask
What is window flashing?
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How do you install a window cap flashing?
Residential finned windows typically have strips of flexible membrane material (called window flashing) placed at the bottom (“sill”), sides (“jambs”), and top (“head”) of the window.
