Uneven Roof Sheathing

8d ring shank nails should be used instead.

Uneven roof sheathing. Nail and space panels correctly. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. However there s no reason to panic because an uneven roof doesn t necessarily mean that you have serious structural damage. The roof sheathing shall provide an even surface free from thickness variations holes and debris that produce visible irregularities in the finished roof.

I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it. Never attach roof sheathing with staples. Uneven roofs are always cause for concern. Ensure roof trusses are in proper alignment with no curves or uneven sections when installing osb to sheathe roofs.

Sometimes new shingles are applied directly on top of old uneven shingles. Install shingles according to manufacturer s guidelines. Start with a level nailing surface whether you re using plywood or oriented strand board osb the first step in building a high quality roof is to make sure you have a level nailing surface. Buckling can occur if the wrong type of nails were used to connect the sheathing to the rafters.

Sheathing should be a minimum of 19 32 inch thick. Bulging or sagging roof coverings indicate damage to at least one portion of the roof structure. The typical thickness range for sheathing is 3 8 to 3 4 inch. A roof over or re roof is not recommended because it will certainly lead to buckling.

Install osb panels on aligned roof trusses. Oriented strand board or osb roof sheathing is a preferred material for roofing because of its strength and low weight avoid the errors described when installing this roof sheathing. Protect sheathing and carefully install felt.