installing a window with T-111 siding

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emjode
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Joined: Tue Jun 05, 2018 6:26 pm

installing a window with T-111 siding

Post by emjode » Tue Jun 05, 2018 6:47 pm

I just watched your video on installing a window with a nailing flange and it was very informative. We have nine windows to replace in our camp, switching out old triple track storm windows for SH vinyl windows with a nailing flange. The camp has T-111 siding. Do we need to take any additional measures to keep water out?

Thanks,
John


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A. Spruce
Posts: 3663
Joined: Tue Aug 16, 2016 5:23 pm
Location: California, USA

Re: installing a window with T-111 siding

Post by A. Spruce » Tue Jun 05, 2018 10:05 pm

You will need to cut the siding back just enough to get the old window out and the new window in, from there you cover the gap with trim. Make sure you caulk it well with a high quality caulk, as it's going to be your only defense against water getting inside the wall. I would use an elastomeric, such as Big Stretch, as it's highly adhesive and extremely flexible, so it can handle temperature extremes without failing.

The way you install the trim will help keep the water out as well. Install the bottom piece first, width of the window. Install the side pieces next, from top of window to bottom edge of bottom trim. Head piece is installed last and will span from outside edge to outside edge of side pieces. Caulk the trim to both the wall and the window. Done.
If the women don't find you handsome, they should at least find you handy.

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