The roof deck is the material that sits on the ceiling joists and supports the shingles. Modern homes are constructed using plywood sheets for the roof deck. The result is a smooth surface that is stable and long lasting. Homes built prior to 1990, however, might have a roof deck built with 1x boards.
The boards used on 1x roof decks are not as strong as modern OSB rood decks. Individual boards are prone to breaking under the weight of snow or even simply with age. While the boards can be replaced, there are a few inherent problems with 1x roof decking that you should be aware of.
The first concern with the 1x roof deck lies with the potential for boards to break while a new roof is being installed. The weight of workers moving across the surface may cause boards to break. The force of new shingles being nailed in place can also cause boards to snap and break. Even after the roof replacement is completed, the risk of broken boards will remain. Any 1x that breaks will weaken the roof, create a spot where the shingles might fail, and increase the risk of a leaky roof.
The other problem is that a 1x deck is not a good, smooth surface for new shingles. A proper roof restoration depends on having a roof deck that is as smooth and flat as possible. Every seam in the roof deck presents a potential problem spot for the shingles.
The best solution is to install a new OSB roof deck. The concern about broken boards will be eliminated and the new roof will be flat and smooth. The finished product will not only look nicer, it will also be more secure. The perfect time to improve the roof structure and upgrade to a solid roof deck is when the shingles are being replaced. A *quality roofer will encourage you to make this change to increase the overall stability of the roof.
Robbins Roofing, Inc., is a roofing company in Oklahoma City with more than 60 years of combined experience. We will take care of making the change from a 1x roof deck to a stable and secure OSB roof deck. We are BBB members with an A+ rating and are fully insured and licensed. When it’s time for a new roof on your house, visit us Facebook to learn more about our company and the improvements we can make to your roof.