(09-27-2019, 09:53 AM)brnhornt Wrote: Hmmmm...that's a point for me to really consider. Honoring warranties and customer services is a big notch in my book. Are the Andersen windows really that much harder to mull/install? I'm thinking half of the windows in my house would end up being two windows mulled together.
Not bad to mull but the flange doesn't fold down like the Pella. So an andersen has to be installed from the outside. A Pella can be installed from the inside (unless something has changed with Andersen). You still have to stop a Pella from pushing through so someone or something has to be on the outside to stop it from falling through. Keep in mind, I'm talking about new construction windows which I like to use if possible.
The big deal is 2nd story installations. You can't mull windows once installed so windows need to be joined (mulled) before installing. Lifting large windows for the outside, for an upper floor installation is difficult. Much easier to do inside the home than outside.
You can see what I did here with 2x4s to stop the mulled window from falling through. I used 2x4 blocks to keep the long 2x4s away from the wall. Push the window from the inside-out until it hits the long 2x4s. Go outside and fold out the flange and push the window/flange up against the sheathing and nail in the flange while using something inside (2x4s in my case) to hold the window upright.
The inside view.... this was a single 32 inch wide window originally so what we were doing here is replacing it with a much larger window to allow more light into our master bedroom. We live in the woods so we don't get much light.
You can see a temporary shelf at the base of the rough opening. I mulled those windows with them laying flat and the bottom of the windows on that shelf. The top of the windows were supported by saw horses. Once mulled, I jst stood up the window on that shelf and pushed the window into the rough opening. My wife helped me stand up the window and push it in. Something this size is a little "floppy" so I needed her help to keep it all intact while standing it up.