You may need to install shims where the sash meets the jambs in the middle of the window. It's great for keeping water and moisture outside of your home. Nailing down vinyl frames is not like installing other types of siding. Metal and vinyl windows have an integral flange (also known as a nailing fin) that attaches to the house. I have put in a lot of the Jeld-Wen Windowmaster vinyl units, and the stickers never say to omit nailing the top. Re: How To Install a Window with a Nailing Flange Post by bob0170 » Thu Sep 20, 2018 10:31 am thanks Shannon, FYI i just donated through pay pal, excellent vids. Combine this 3/4 inch with the width of your vinyl windows for an estimated nail length. I replaced windows for nine years and would never do a flange free install unless the situation actually called for it. Insulate around all sides of the window frame and extension jambs. When the window is level horizontally, use a level to ensure that the jambs are also straight and not bowing. for Vinyl Windows without Nailing Fin (JII011) Flush Fin Window A window without a nailing fin that has a face flange (trim only). Typically, vinyl replacement windows don't come attached with this kind of flange for easy installation. Vinyl windows are a popular choice for home builders as well as for homeowners who wish to upgrade their windows. Hinged (photo, left)) and non-hinged (photo, right) mechanical flanges are also found on vinyl and metal-clad windows. Some windows have a nailing flange that is an integral part of the window (usually vinyl windows), but this window does not. If foam insulation is used, we recommend using only non-or minimal expanding foam, and it must be applied to the outer nailing fin. Step 2 - Install a Window Once you have fitted the caulk, take your window, and place it into the opening. If you have basic tools and skills you can install your own vinyl replacement windows and save hundreds of dollars in installation charges—for each window. Installation Clip Yes, I'd recommend putting a nail in every single hole, roughly 1.5 inches in size. In this article we will be discussing the installation of a vinyl window with nailing flanges. For the love of god, go with flange install. You will need to make sure that it is pressed down evenly, and you may need some assistance in checking that the window is correctly placed. 4. Head Expander A vinyl accessory used to cover the head of the window in some retrofit applications. 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. There are some different methods for installing windows and we will explain how we normally do it. These windows come with a strip of metal along all edges which is pierced and ready to take in the nails. If you are considering adding a window to your home, then you may be wondering whether to install a window with a nailing flange. How to Install a Window with a Nailing Flange Part 2 ... and spread a few beads between the nailing flange and the sheath. Do not over insulate. If you have a brick or stone veneer house, you must allow at least 1/2" under the window for settling.