Roof Plywood Nailing Pattern

Keep these tips in mind when roofing in hurricane areas.

Roof plywood nailing pattern.

Check the nailing surface is level. Metal roofing is also available in the form of shingles. For clarity sheathing nails are not shown ladder framing at gable ends. This video shows how some roofs fail under heavy winds in uplift situations.

Wet and dry specimens of plywood and. Follow these 5 simple construction steps for roof sheathing and scroll down to see more details on each with installation hints and tips below step 1. Installing a roof is much more than just nailing shingles onto some boards. The connection between the roof sheathing and the structure is a vulnerable point that is known to fail during a hurricane.

These schedules were calculated to provide resistance to wind uplift pressure as required by most codes. Ladder framing at gable ends use extra care when attaching a ladder framed exten sion to a gable end. To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Never screwed the plywood roof decking on. Believe me you don t want to have to remove one of these sheets when fastened at the proper nail spacing. It starts with installing solid decking usually plywood or oriented strand board but that is not waterproof.

I personally do not like staples because i don t have any confidence in the longevity of the wire gauge. And if you ve ever had to deal with a home inspector checking your nailing schedule then you probably know all about how big of a pain in the a it can be to make them happy. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Many homes have been severely. Roofing nails should be long enough to penetrate the roofing material and go 19 mm into osb solid wood plywood or non veneer wood decking or through thickness of decking whichever is less. Nailing schedules for wood structural panel roof sheathing plywood and oriented strand board osb. If you ve ever installed shingles plywood headers or drywall you probably already know all about nailing patterns.

The roof ridge by nailing roof sheathing. Holes drilled in roof sheathing for ventilation roof diaphragm action is maintained. 2 8d galvanized ring shanks with a nail gun. During a hurricane the strength of the sheathing on the roof can greatly impact the homes ability to weather the storm.

Ventilate the roof according to current building codes.