What’s up
I am installing T111 siding on a 16’X24′ Barn I am building. I have put one coat of stain on the sheathing and plan to hang it with 8D galvanized Spiral Shank nails. Follow with a finish coat.
Question. Do I need to Chalk the shiplap joints while I install the siding?
If Yes, what kind do I use?
Is this only for an Airtight structure?
Thanks
Replies
Z Flashing.
did a quick search ... found a pic.
View Image
Jeff
Buck Construction
Artistry In Carpentry
Pittsburgh Pa
Ok. But what about the vertical shiplap joints between sheets. Do I need to chalk those?
And what is weather protective barrier? Typar? Tyvex? Etc...?
Not sure what you mean by "chalk" the joints, "caulk" perhaps? You do not need to caulk the vertical rabbeted joints, but I have seen it recommended that you seal all the edges as you install (i.e. with primer or stain).Weather protective barrier is Tyvek or equivalent. We always used tar-impregnated building paper, and never had any problems.
ham,
Might be too late, but I would highly suggest either an additional coat of stain on all edges and the back side of the T111 especially along the bottom edge. I am getting ready to replace about half of the T111 on a 24x24 garage because the bottom foot or so is falling apart due to moisture. Most of my problem is due to not having enough roof overhang and the water is splashing back on the T111. Unless you know yours is going to stay very dry, I would use overkill on staining or painting all of the edges and especially the bottom.
Bill Koustenis
Advanced Automotive Machine
Waldorf Md
So far I have put Two coats of stain on the shiplap joints, bevel edge, top and bottom. I am staining the sheathing horizontally now, then I will install and put on another coat. I'll make sure to get the top and bottoms again.
Thanks for the advise!
I second the back priming idea to keep moisture from migrating through the wood and pushing off any face finish. A bead of caulk in the groove never hurts. I know a guy who used outdoor wood glue despite my admonitions against. Sure hate to have to replace a panel on his house...
Bill, I forgot to ask last time we discussed this...How long did your current T-111 installation last? IOW, do you know when the siding was put up? And is it 5/8" ply, 1/2", OSB, or what?
If this T-111 is at grade, then definitely back prime it. And my painter friend says there is now a latex primer that is better than oil based. It's called Peel Stop and stays flexible like latex paint. He says the primer won't crack with movement.