replacing old wood windows with vinyl windows with no fins

Does any one know how to put in vinyl windows that have no fins? Some one will give me a couple of double pane used vinyl windows but they have no fins for some reason and i dont know how to make them stay in the window hole. Thanks.
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Perhaps the tracks are removable and you will find holes for nailing after removing the 2 sashes (window panes).

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Sounds like some one gave you replacement windows. These are usually installed with screws driven though the side of the jambs. Look for pre-drilled holes at the sides where the windows slide up and down.
These might not be suitable unless you have existing jambs in place. You may just funnel water into your walls. Think about this before you install them.
Colbyt
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sheza chex wrote:

They don't have fins because it is common to cut them off when replacing windows, especially where brick is involved or anywhere the installer doesn't want to disturb the siding.
The way to install them is to set them in the frame hole, then drill holes in the uprights and screw the frame to the frame supports. Note that the window frame is probably a box, so you select a drill large enough for the screw head to pass through for the part of the box to the interior and a smaller size for the part of the box to the outside. When installed and viewed from inside, you see a small holes on the vertical part of the window frame and if you look closely you will see a screw head inside. If you have a slider then you have to open the slider to drill and install screws on that side. 2 screws on each side is enough for windows under 4 x 6 feet.
Getting the window frame to fit the hole may require cutting he window sill back aways and other modifications to get the frame level and to fit. When you install the window frame, be sure to set it on the lower support with some type of flexible suff between the window and the frame opening (Lowes and HD carry a blue plastic foam about 1/4 inch thick and 6 inches wide for filling spaces around window. Note: The window frame hangs on the vertical supports; do not put screws into the top or bottom horizontals.
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wrote:

Adhesives.
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