Choosing Windows

Its best to order windows well ahead of time to avoid delays in construction. This should be done prior to framing. You will need to get the rough openings for all the windows from your supplier and give these to the framer.

Also make sure all your windows conform to local building codes. Every bedroom has to have a window or exit in case of fire. For windows to qualify they must have an opening size of 5.7 sq. ft. and be at least 20” wide and 24” high. The sill can not be more than 44” above the floor. Windows over tubs and close to the floor need to be tempered glass. Go over these requirements with your supplier to avoid problems and more delays brought about by having to reorder.

Common Types

Double Hung - Upper and lower sashes slide up and down. These modern windows are great for cleaning and are built so that both sashes can be removed and replaced with ease.

Single Hung - Only the bottom sash moves up and down.

Casement Windows - These windows swing out by cranking a lever. If you are using a wood casement window it is good to get them with cladding since they are exposed to rain.

Sliding Windows - Roll horizontally. These are good in places where a sash might be in the way when cranked out, like on a deck. They are at a disadvantage in cold climates because they don’t seal as well.

Fixed Glass - The units are less expensive than other windows because they have no hardware or weather stripping. They are also tighter and save energy. These are inoperable but can be built to match other operable windows.

Bay Windows usually have two operable windows; one on each side with a fixed window in the center. They can have a seat built below, or the are added can be extra floor space. Those with a seat leaves a great place for cabinet doors and storage. These windows can be framed by extending the foundation out into the shape of the bay itself or the framing can be cantilevered out over the straight line of the foundation. This latter option is more cost effective.

The material options for windows are wood and wood clad, aluminum, and vinyl. Vinyl windows are very popular and insulate better than aluminum but not as well as wood. Fiberglass is another option as it is stronger than vinyl and will not rot. The paint is usually a factory finish.

Today’s windows are much more efficient than those of the past. They are rated by a U-value and an R-value. These two values measure the same thing from opposite directions. U-value is the amount of heat transfer and R-value is the insulating property or heat transfer prevention capability. The best windows have a low U-value and a high R-value.

You will need to discuss your options with an experienced sales manager when it comes to energy saving options. Such things as glazing, low e coatings, grids, R-values, etc.