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Sheathing and Raising the First Wall

Bob continues framing the affordable home in Mashpee, Massachusetts, with General Contractor Wes Lohr. Lohr begins by squaring the wall, which is done by taking measurements from corner to corner diagonally and checking that they are the same. The crew then snaps a line 36 1/2 inches up from the bottom for the overlapping sheathing that will cover the bottom band and pressure-treated sill. Lohr uses Louisiana Pacific (LP) oriented strand board (OSB) to sheathe the wall. It is treated with a wax coating on one side to protect against weather. LP OSB will not delaminate when wet and is marked with nailing guides to help nailers hit studs every time when studs are properly placed. Any overlapping OSB that blocks window or door openings is cut away, then the wall is raised and eyeballed for placement.
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Sheathing and Raising the First Wall

  computer-generated transcript - may not be 100% accurate

" What we're doing now Bob as I promise as we're going to square this wall. Now any time that you build a 36 foot long partition like this. It's likely to be a little tiny bit racked instead of a perfect ninety degree corner it very well could be. Note to our construction things get shifted around okay as long as these two measurements. Are the same. This wall's perfectly square when it goes up it'll be level from opposite corners to opposite corners exactly. And that's is is -- that is. All right so Wes what's the chalk line for. So we measured up from the bottom of the wall 36 and a half inches the sheets -- 48 inches what that overhang allows is to cover. The deck when the wall's stood up icy to that extra foot will overlap the the band that'll cover of the two by ten band and also cover the sales. Pressure treated cells actually. And so now we're ready to bring on the oriented strand board in this product is. Well it's Louisiana-Pacific and what I love about it is it's sustainable. There is -- from Aspen which is the very sustainable. Fast growth. What product. Beyond. Thing I like about the airless big is it does not delaminate that holds its shape very well. If it gets a little wet. It really keeps its shape. It's got -- it's gotten up their price along with everything else I mean we haven't talked much about the cost of the frame. Bob but a sheet of OSB that I remembered used to be. 567 dollars it's three or four times that -- now I'm last I checked it's about 22 to 23 dollars and you. Does it matter which side is in and which side is out of one. Preferable to be at the weather well they actually do put -- oxide coating on one another for the weather and also you'll notice the lines going down to get a troubled and off -- One of the lines is sixteen on center they also have a two foot on another line."

" Ordination and nobody -- long -- he's following that black mark exactly the bells and hit right on the stud exactly."

" Any overlapping pieces of the oriented strand forests that. Jilin in the window openings will be trimmed out before we lift up the frame. Everybody's favorite part in eyeball it. Really give this a quick sight doesn't have the perfect for now but now let's get right as god. And also make sure it's out enough so it doesn't interfere with the next wall exactly enough and like doing this on a -- Danny it's a perfect day for."

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