40 year old window. Double hung, leaky, ugly, it's got to go.
Interior view of the newly installed window.
Performance specs of the new Pella Window.
Low E
U Factor 0.29
SHGC .33
Visible Transmittance 0.62
Argon Gas filled double pane fixed
Energy Star Rated
$365
It took about 4 hrs to install the window. We weren't trying to break any speed records. The old window was basically held in by 2 nails. There are about 20 screws in the new one. The gap between the framing and the window is filled with expanding foam. We taped the entire framing with a non permeable adhesive sealing tape.
Newly installed, high efficiency Pella. Very happy with this window!
http://www.nfrc.org/WindowRatings/The-NFRC-Label.html