4/22/2024 0 Comments T1 11 window installThe idea is that any water that makes it way past the window frame and onto the flashed sloped piece under the window should make its way out to the WRB and run down and out. clapboard) be placed under the window, with flashing over that and running out over the "Water Resistive Barrier" (WRB), which would be housewrap or, in your case, the T-11. In most installation instructions, it is suggested that either a sloped piece (eg. If it is at the sheathing/siding (T-11) layer, then that's where you need to maintain the air barrier connection between sheathing and window, rather than to the stud, unless there is an air barrier connection between stud and sheathing (sealant). Ask yourself where the exterior shell air barrier is. Take a careful look at any window vendor's website where they show their installation instructions. Image of what I'm trying to describe View attachment 102321 It appears that the windows were screwed into the center of the studs/header leaving a gap underneath and an exterior sloped piece of wood was butted to the bottom of the window to act as a sill drain. Someone did a good job trimming them on the inside however as I started taking things apart none of the jamb extensions etc were insulated well - if at all. Here is what they look like from the inside View attachment 102319 The basic issue is the house has T1-11 siding which serves as the sheathing and the exterior - sheetrock/insulation/ T1-11. I've installed windows during a new construction before - I built a camp several years ago - but I've run into a couple of questions that I think I know the answer to but I would like to have others opinions on. Opinions? Ideas? Something completely different I haven't thought of?Īfter the first winter in our new house its obvious with the cold coming thru them that we need the windows replaced, which have been there since about 1983. And I suppose I could cut the fins off a new construction window and center/screw it onto the studs like the originals - which would save some interior trim work/time/money. The other options I have seen are attaching the window directly to the t1-11 as in a new construction - at some point I am going to put another exterior over the T1-11 - probably vinyl - so this may have merit - but its a year or more down the road before that will happen. Flash the window to the studs beginning at the sill which would go over the exterior (see image), Install the T1-11 strips back in place - flash to the exterior T1-11 and trim. Install the fins of a new construction window to the studs/header etc. If necessary, cut out a strip of the T1-11 to facilitate that. My current thought as to how to proceed is to take everything out and get down to the studs. So my question has to do with replacing them. Its tough to see the slope in the image but that piece of wood sits on the cripples and butts the bottom of the window. Here is what they look like from the inside After the first winter in our new house its obvious with the cold coming thru them that we need the windows replaced, which have been there since about 1983.
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