The new plywood will have to be nailed to.
Installing osb roof sheathing.
This is usually a prerequisite in building codes.
The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter.
Ventilate the roof according to current building codes step 3.
Oriented strand board or osb roof sheathing is a preferred material for roofing because of its strength and low weight.
Check the nailing surface is level step 2.
I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.
You may choose between sheets that measure half an inch or 3 4 of an inch thick.
When osb is used as a structural panel it must adhere to specific span ratings specified by the.
Install the panels tape the seams with zip system tape and the building is rough dried in.
Cover sheathing with.
When you intend to install osb sheaths try to determine the breadth or the ideal measurement of your choice of material.
Properly fasten panels including fastening and spacing hints step 4.
And scroll down to see more details on each with installation hints and tips below.
Osb sheathing has different textures on both sides as well.
The proper way to install osb span ratings.
Install osb panels on aligned roof trusses.
Select osb sheets.
Zip system roof and wall sheathing panels are oriented strand board osb wood structural panels with built in protective overlays that eliminate the need for building wrap or roofing felt.
The screened surface also provides a little more traction for construction workers during installation.
Slide the sheet one rafter width over the end of the roof so the edge is centered on the next rafter.
Place a piece of sheathing above the first piece that was installed to begin the second row.
Although i don t think installing new plywood roof sheathing over the old would be a grave mistake i would not recommend doing it for several reasons.
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.
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.