How To Install Anderson Window Parts: Window Installation

Learn Seven Types of Windows by Anderson and How To Install New Windows

Man repairing window frames

Anderson, or Andersen Windows as they were originally known, is a major window and door manufacturer in the U.S. The company was started in 1903 by a Danish immigrant named Hans Andersen. The windows are made of Fibrex, a patented material composed of thermoplastics and bio-fibers (wood), which makes it unique and long lasting.

There are numerous kinds of Anderson Windows purchased both for new home construction and replacement windows. The firm annually produces over 6 million windows and doors that add to the beauty of both the interior and exterior of buildings. Learning how to install these products is not difficult if you follow the directions below.

Here is a quick overview of how to install Anderson Windows:

  • Installing windows can be a DIY project. The installation directions are for windows in the upright and vertical position--not for Skylights and Roof windows.

  • The opening must be sized, squared and leveled properly to ensure proper installation. Measure the opening at the top, the bottom and in the middle. If there is more than a one-inch difference you will need small wood shims to place in between the window and the opening. You will also need to place a level on the opening to ensure that it is properly leveled. 

  • Proper flashing needs to be applied under and around the window openings. The flashing should be 9 to 12 inch wide,15-pound builders felt. Cut the strip about 20 inches longer than necessary and peel off the backing. Then apply the self-adhesive strip to the entire opening. 

  • The window alignment must be re-checked and appropriate fasteners installed to properly secure the window to the surface. Pull out the nailing fins on the window so they line up with the frame. Place the window in the opening starting with the bottom and working your way up. When it is flush, place a nail in the fin to affix the window to the frame with 1 ½ inch roofing nails. 

  • The interior cavity between the window frame and the rough opening needs to be insulated. Care must also be taken to avoid any kind of overstuffing or over-packaging. Self-adhesive weather stripping can be placed around the perimeter of the window. Measure each strip to fit and place a strip on each side of the window. On the inside, spray a small amount of expansion foam to ensure a tight seal. 

  • To reduce the moisture absorption the rough and unfinished wood surfaces will have to be stained and sealed. Apply a waterproof stain or paint to any wood that is exposed. Let this dry and add a second coat.

  • No paint can be present between the weather strip and the interior hardware finish. Take a dry, clean cloth and clean any paint from this area. 

  • Care must also be taken to protect the new windows during construction and plastering work. Place a plastic cover over the window pane to prevent breakage. 

  • Before finally applying the interior trim, the proper installation and operation of the Anderson window parts needs to be rechecked. Place the level on the windowsill to ensure that the window is level. Make any necessary corrections and continue.

Anderson Windows offers you a number of window options. To name a few, there are seven types of decorative and fancy windows that serve more than one purpose:

  • Casement Windows - These windows have a hinge on the side and open outward like a door.
  • Awning Windows - These windows have a hinge at the top to open outward. 

  • Double Hung Windows - As the name suggests, these windows slide vertically past another along a sash to open. There are two sashes and only one can be open at once. This is the most popular type of window.
  • Gliding Windows - Unlike the double hung windows, the sashes for these slide open horizontally as opposed to vertically.

  • Picture and Transom Windows - These kinds of windows remain stationary and are designed to match the double hung or the casement windows on either side. They do not open and are mostly used for decorative purposes.

  • Specialty Windows - Any kind of curved or stationary windows are known as Specialty Windows. These also are used generally for decorative purposes.

  • Bow Bay Windows - These are the kind of windows that project outward from the home.

  • Skylights and Roof Windows - These are generally designed for sloping surfaces.

Following these steps meticulously will ensure correct and proper installation of the expensive and weather-resistant Andersen windows. After your project is completed you will marvel at how easy it was to install new windows yourself.


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