Doors and Windows - replacing old windows with new energy efficient
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brinainlakeelmo
10-17-09, 09:30 AM
Hello
We insulated our attic last week, and would like to begin the daunting task of replacing our windows. Home was built in 1961 with Anderson double pane sliders. These sliders, when closed are directly next to each other. To open, there is a turn-key on the frame between the two, that you turn, and pull so that the window on the right pops out into the room and slides behind the adjacent window, sliding on groove in the Formica track. This grooved track sits above and below the windows and they leak severely.
My question is, can replacement windows be used in this application, or am I better off cutting out the entire window and putting in new construction style replacements.
Next: how to decide. We live in Minnesota and would like to put in energy efficient replacements, bu there are so many choices and everyone claims to have the best window, or the best value.
Any advice would be appreciated.
We insulated our attic last week, and would like to begin the daunting task of replacing our windows. Home was built in 1961 with Anderson double pane sliders. These sliders, when closed are directly next to each other. To open, there is a turn-key on the frame between the two, that you turn, and pull so that the window on the right pops out into the room and slides behind the adjacent window, sliding on groove in the Formica track. This grooved track sits above and below the windows and they leak severely.
My question is, can replacement windows be used in this application, or am I better off cutting out the entire window and putting in new construction style replacements.
Next: how to decide. We live in Minnesota and would like to put in energy efficient replacements, bu there are so many choices and everyone claims to have the best window, or the best value.
Any advice would be appreciated.
XSleeper
10-17-09, 11:09 AM
Those sliders are notoriously drafty. Once you remove the sashes and track, the jamb of the window is pretty much like any other window opening, with a sloped sill and exterior blind stops. You can put a replacement window into the opening. I have heard very good things about Schuco windows, if there is a dealer in your area. Not sure what part on MN you are in. Whatever brand you decide on, the most important component in a cold climate is the glass package you choose. You want the best they offer, which likely will be a triple pane low-e IGU, often filled w/krypton gas, and the glass should have a u-value somewhere around .20. Don't buy into any hype you hear about windows with high r-values... which are usually meant to mislead the homeowner into thinking a window can be just as warm as an insulated wall.
Bud9051
10-17-09, 12:41 PM
Hi brin, one of the concerns I have with replacement windows is that it does not address the original window installation, it leaves the frame and trim in place, which is often desirable. However, if you pull the inside trim off and properly insulate and air seal around the frame you should be all set. Of course this step is dependent upon a poor installation to start with.
From an energy standpoint, your old sliders would be estimated at an r-value of 2. The u-value suggested by XSleeper of .2 corresponds to an r-value of 5 and that is above the bottom line windows usually referred to as contractor grade and it should be a better window. Once you narrow your selection, bring your choices back to the forum as there are some very good window folks here, XSleeper included (not me).
Bud
From an energy standpoint, your old sliders would be estimated at an r-value of 2. The u-value suggested by XSleeper of .2 corresponds to an r-value of 5 and that is above the bottom line windows usually referred to as contractor grade and it should be a better window. Once you narrow your selection, bring your choices back to the forum as there are some very good window folks here, XSleeper included (not me).
Bud
lefty
10-17-09, 08:29 PM
Retrofitting the windows is leaving the old frames in place. Replacing the windows is pulling the old frames out of the rough opening.
Vinyl or fiberglass windows are ordered to the exact size that you need for whatever opening that you are leaving. Where you're at, triple pane, low-E glass and gas fill are going to do the best job for you.
Lots of brands and a huge range of prices. Talk to several contractors (or window companies if you are going to DIY.) There are a lot of styles and options as well.
Vinyl or fiberglass windows are ordered to the exact size that you need for whatever opening that you are leaving. Where you're at, triple pane, low-E glass and gas fill are going to do the best job for you.
Lots of brands and a huge range of prices. Talk to several contractors (or window companies if you are going to DIY.) There are a lot of styles and options as well.