Residential Roof Decking

Plywood is layers of wood plywood is made.

Residential roof decking. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. Wood generally stands up to the weight of almost any type of roofing material placed on top although tile may require extra reinforcement. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. Vinyl decking looks great on roof decks.

A roof recover or overlay is the process of installing a new roof covering over an existing roof covering. Roof decking sits beneath the shingles used to protect the house from the weather. For residential buildings the most common type of roof deck is plywood or tongue and groove wood systems. Of roof decking costs 800 2 800 to install depending on the material you choose.

Moisture that passes this covering and seeps into the underlayment for the roof can cause leaks into the home and. Never attach roof sheathing with staples. Sheathing should be a minimum of 19 32 inch thick. Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. The ibc requires removal of the existing roofing materials down to the deck and installing a new roof covering assembly. Previous options for roof decks were pretty drab in flat greys whites and beige. A roof replacement is the process where all existing layers of roof covering are completely removed down to the roof deck before a new roof covering is installed.

The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. Roof replacement is a defined term in the i codes. This is usually because low quality leak prone decking materials such as epdm rubber are used often in an effort to save money. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.

Under these conditions the iecc mandates the installation of enough insulation to comply with either the r value or u factor tables. Unfortunately many homeowners who have a flat deck roof have to deal with frequent leaks. On average 300 sq ft. The typical thickness range for sheathing is 3 8 to 3 4 inch.