When the grade stamp is covered by roofing, the building inspector will not be able to confirm that the correct OSB roofing panel was used. Im fixing the problem by having a helper get in the attic and hold a scrap of plywood for me to screw into wherever the OSB strips out (enough of the screw goes through the OSB to allow that). Answer OSB roof panels should always be installed with the grade stamp facing into the attic and the screened surface (with the nail guide lines) facing up. As far as I know, the drywall has not been affected (customer wasn't home so I couldn't get in today). When a screw strips the OSB, I cant just move to a different spot because the screw has put a hole in the roofing and I have to fill that hole. But does anyone have any ideas on what caused it? And what can I do to make sure it doesn't happen again? I've never seen anything like it before. I can fairly easily pull the siding off and replace a couple of pieces of OSB. I drilled a hole in the OSB just to see what I could find out, but really didn't find anything. Can he put expanded polystyrene foam on top. He has already installed roofing underlayment over the panels. But Lin wants to add 2 inches of rigid foam on top of the panels to reduce thermal bridging. By most standards, that’s a well-insulated roof. It is between studs and fastened well on each side. Roger Lin’s Washington, D.C., house will have a roof of 12-inch-thick structural insulated panels (SIPs). I pulled a piece loose and found that the siding is simply following the OSB! There is one place on each end of the house (about the center) and one on the back of the house where the OSB is bowed out significantly (an inch or more?!). Now the customer is complaining of "warping vinyl." I went over this afternoon to look. Answer OSB roof panels should always be installed with the grade stamp facing into the attic and the screened surface (with the nail guide lines) facing up. Move the pry bar down the rafter to remove the nails if you cant pull the sheathing up by hand after. 2圆x8' exterior walls (16" spacing), blown in cellulose, regular drywall (no interior vapor barrier per insulation sub's advice), housewrap on exterior, vinyl siding. Pry the edge of the sheathing from the roof rafters while standing on an adjacent sheet. Sagging may result if panels are installed incorrectly.I posted this on the framing forum, but realized I might get some good help here as well. Be very careful on hip roofs along the hip to make sure the strength axis does not mistakenly get parallel to the supports as that may result in the panel exceeding the maximum span allowed for that thickness. The strength axis is usually the long direction of the panel but the grade stamp will indicate it.
Having said that, it is very important that the sheathing be installed with the strength axis perpendicular to the trusses/rafters.
Pulling osb up an unwalkable roof install#
The same goes for wall sheathing and flooring panels always install with the grade stamp up so that inspectors can do their jobs easily. The screened surface also provides a little more traction for construction workers during installation. The bottom edge should be flush with the bottom. The long edge of the panel should be flush with the corner framing. That's common for metal roofing it does create some. Position the first OSB panel vertically at one side of the wall. A potentially easier option is to use purlins (on top of the rafters) rather than framing between the rafters. Check the forecast to determine the best time to begin the project. I guess at 14x16 you won't be towing this one, but the wind still blows, and OSB does not have adequate holding power to resist the wind trying to rip the metal roof sheeting off. Getting OSB/plywood sheets on the roof by yourself Some Person In N Carolina 5.26K subscribers Subscribe 357 Share 36K views 4 years ago I'm doing a 560 sqft addition on the house by myself. If it is at all possible you should wait for warm weather to remove the membrane. When the rubber is cold it can become rigid and stiff. OSB roof panels should always be installed with the grade stamp facing into the attic and the screened surface (with the nail guide lines) facing up. Step 1Check the Weather It is easiest to remove the rubber membrane when the rubber is warm. Which way should my OSB roof board’s be installed? Answer
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