We are redoing the siding and would like to re flash the windows… If you are considering adding a window to your home, then you may be wondering whether to install a window with a nailing flange. Replacement windows are installed by fastening them to the window opening framework through the inside of the window frame. Vinyl windows are available for new construction and include a nailing fin along the perimeter of the window frame for quick and easy installation to the building's framework. Whether you are installing vinyl siding for the first time or have replaced a window and now need to reinstall existing vinyl siding around it, these steps describe how to do so while protecting your home from unwanted water intrusion in the future: Step 1: Seal the Window's Nailing Flange with a Waterproof Exterior-Grade Sealant They have a 25-year guarantee on product and installation. Head Expander A vinyl accessory used to cover the head of the window in some retrofit applications. Installation Instructions for Vinyl Windows with Integral Nailing Fin JII1 3 NOTE: This section applies to installations into a masonry wall only. I am not aware of any standard approach to this problem. - Run rain screen strapping just outside (most commonly 1 1/4") of flange on sides, and at 16" across top and bottom keeping it off the flange. Send Text Message Print. 2 Seal the sill with tarpaper or with a vinyl sill sealer. I got a bid for $4600 from one company that uses no-flange windows. Because the flange has to be attached to the rough opening of a wall, the process of how to install a vinyl window with nailing flanges is a bit different than other window install … Do just that with a flanged window. On solid vinyl windows the perimeter frame is integral with the nailing flange. - Install siding. If you have a windstorm, the negative pressure on the leeward side tries to suck the window out of the hole it's in. Each situation is unique and needs a custom solution tailored to the particular materials and field conditions. The self-adhesive membrane should cover the nailing strip for the vinyl cladding. How to Install a Flanged Window How to Install a Flanged Window . The window should fit comfortably without binding, and there should be enough room to adjust its orientation. One of the most important aspects of any window installation is ensuring that the window is plumb, flush, and square before you secure it to the window opening. The corner of the window is the most likely place for the nailing flange to break so don’t put a fastener closer than about 4” from the corner of the window frame. Vinyl window framework and siding are often installed as one project, and both use the same types of nails and attachments to keep them in place. should be appropriate to the specific window and flashing system. Whisking water away from your home's openings is important and basic care. When you bring your house wrap over top of the flange it prevents water that penetrates your siding (When not if) from getting behind the window flange/brick-mold.