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Sheathing the Roof to be Hurricane Resistant
computer-generated transcript - may not be 100% accurate
" Brian let's talk a little bit about the function of the sheathing I mean it's up to ten years ago I guess I was put plywood -- now it's oriented strand board. But the whole sheathing really performs a structural function that's very important. The front Bob what we have before -- solid standing in the Senate independence. Can return to Iraq. With the windload as the hurricane comes restore -- about attaching the structural wood paneled. Sheathing like we have here though -- speed. To make the -- old Warner single unit. Right arm building block the right wall can no longer deformity stays rectangular yeah I helped secure there's windload into the foundation I like -- the skin of the house and what what I understand also is that this is is in effect a shear wall. And that the amount of nailing around the perimeter has a role in its strength. Right. The minimum fastening schedule we recommend -- don't centers around the perimeter well thanks styles that are along the intermediate studs. But by doubling the number of fasteners around the perimeter you roughly double. The combat -- cereal so that in a hurricane prone area it does make sense to have the nailing. Close together right three inches. This creates is also there with you bastard gets up to two inches -- experience. -- lumber okay it's it's important that the telescope into the sill plate. And now looking in this direction we've already got one course down and it's got the nails in place all hung up here. So that when we the next course up. They rest on the nail and the nail creates the spacer which is required in between each course of plywood for expansion and contraction. A case of Bryan this will go up if -- gable end when we're. Putting the roof together going to come back home again next line."