They look like double-hung windows but only the bottom sash moves. (They usually cost less as a result.) The top sash is sealed to keep out cold air and water. Andersen, Marvin, and Pella are the ...

In this story we demonstrate how to install a Marvin double hung window. Many of these steps are common among window ...

Wind resistance measures each window's ability to prevent drafts with 25 and 50 mph winds and an outdoor temperatures of 0ºF. Wind resistance measures each window"s ability to keep out drafts ...