Flashing Around Windows Vinyl Siding

Install flashing next to the window.

Flashing around windows vinyl siding.

Wide vinyl siding flashing under the window s nailing fin. Ensure that the flashing along the bottom of the window overlaps the nailing hem of the last complete course of siding beneath the window. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes. Make sure it laps over the bottom flashing at least 2 in.

And extends 2 in. Step 1 prepare. If the window s deep in an entryway and has zero exposure you can skip the weatherproofing and just caulk around it. Stretchable to allow installation around corners common for pan flashing and curved windows.

Window flashing is installed at the same time as the window unit. Pan flashing can be rigid metal or plastic one piece or multiple pieces flexible self adhesive membrane a combination of rigid and flexible or liquid applied. The type and location of the flashings will vary depending on the type of windows and doors. Flashing installation shouldn t be an option but some contractors overestimate the effectiveness of siding in preventing moisture from entering the openings around the window.

If the top of the window is near an eave but the bottom is exposed to the elements strip off the siding and focus on flashing the bottom half of the window but ignore the top. Formable self adhesive pan flashing is commonly 6 in. Above the window s top. Nail off the window.

Inspect the flashing and building wrap around the window. Choosing a window contractor. Protect your windows vinyl siding with flashing. Typically flashing a window is a two part process.

Flashing membranes are now widely used to prevent water leakage around windows and doors and other trouble spots on walls. Other contractors install flashing but fail to integrate it correctly into the water resistive barrier. Speak with someone in the building department in your town to make sure the flashing on the windows with vinyl siding is up to code you will also want to try as best as you can to plan this project during a two to three day period where rain or snow is not. The first half of window flashing occurs when you or your builder preps the rough opening for the window s installation.

If you have vinyl or metal flanged windows for instance you can install drip cap flashing 4 the home depot over the window itself or over the top trim piece that you install. Beveled siding creates a sloped sill. Be sure to add the thickness of the siding to the window s height when framing the rough opening. Sold as flashing tape flexible flashing and peel and stick window flashing these narrow rolls of rubberized asphalt membrane can solve many flashing problems if installed correctly.

Follow these simple steps to help the installation process go smoothly. Self adhesive flashing tape goes on next.