If it’s time for replacement windows, you might be considering installing new vinyl windows on your own. While it is a tedious job, it can be done if you have some general knowledge or skill with home repair or renovation.
In this article, we will provide you with a step-by-step guide on how to measure and install vinyl replacement windows. This can save you additional costs for professional window installation. However, if the job is more than you can handle on your own, you might want to ask a friend to help or consider professional window installation.
How to Measure for Vinyl Replacement
Pro Tip: Measure twice, record once: If you do not record the correct measurements for your windows replacement, the windows will not fit properly, and you will have to reorder the correct size. Not only is this inconvenient, but it will incur additional costs.
- Measure the Depth
As one of the most crucial measurements for replacement windows, it is critical that you get it right. Be sure to measure and record the depth between the window frame stops at the front.
- Measure the Width
When measuring the width of vinyl windows, you must be sure to obtain measurements from the top, bottom, and middle of the window. Take care to start at the window frame and jamb as opposed to the extensions.
- Measure the Height
To get the correct measurement, you must start with the left side, move on to the middle, and finally, the right side. If your windows are vaulted, make sure to measure from the highest part of the window in order to obtain the right measurement.
- Measure the Lining
Typically made of aluminum or plastic, the window lining is necessary for replacing the vertical jamb of the window. If for some reason, you cannot safely obtain this information (if it is out of reach), use the industry standard measurement of half an inch.
How to Install Vinyl Replacement Windows
- Prepare the window area by using a utility knife to remove any remaining drywall.
- Remove the existing window as well as any studs, supports, and screws. Next, carefully cut the area around the outside seal frame and carefully take out the window frame.
- Remove the vinyl casing. This is on the exterior and helps hold the window in place. It is typically located in the perimeter of the wall area that is exposed after you have removed the window.be sure to remove any nails before you remove the vinyl casing.
- Suppose the vinyl siding is damaged in any way. Do so by first removing the nails and then separating the siding window panels. Then you will either install or replace the vinyl window sill. Be sure to install end caps on the window sill to protect the interior of the window.
- For window replacement, Inspect the area to see if anything is rotted or warped. You will have to replace any damaged areas.
- Install building paper behind the nailing fin of the window. It should be approximately 2 inches (ca. 5 cm) from the top and bottom overlap as well as 5 inches (ca. 13 cm) from the edge.
- See if the new window fits the opening, leaving 34 square inches (0.02 m²) around the edge. If the window does not fit, you can add furring strips.
- Install the new window, making sure that the corners are indeed flush. Once the window is in place, screw in the fasteners and use sealant to fill any remaining gap. Sealant foam may be used to fill large gaps.
- Don’t forget to install the J-channel. This is needed to reach the vinyl casing to the exterior of the window trim and can be installed over the siding. Measure the vinyl casing to fit properly on the angle of the window sill.
- Every window component in proximity to the window must align with the J-channel. Be sure to leave an expansion of approximately fourteen inches. The vinyl siding for replacement windows should be firmly locked into one another. However, the siding locking edge must be affixed to the bottom coursing. Finally, the panels should be affixed together, with around an eighth of an inch for the exposed nail which will leave room for the siding to contact and stretch.