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Tearing off the old roof is a good start when your ready to install a new roofing system. But not so fast. A professional roofing company will want to know exactly what’s going on under that roof deck before they decide to nail their new roof into it. The estimator should have already inspected your attic for air-flow and offered his recommnedation on meeting the current manufactures venting requirements.

Tearing off the old roof is a good start when your ready to install a new roofing system. But not so fast. A professional roofing company will want to know exactly what’s going on under that roof deck before they decide to nail their new roof into it. The estimator should have already inspected your attic for air-flow and offered his recommnedation on meeting the current manufactures venting requirements. However, if you have attic areas that are unaccessible or are vaulted, there’s not much to be done until the old roof has been removed and inspection holes can be cut in.

Once the old material is removed, make sure your roofing contractor has a plan to inspect those areas that are at risk for improper venting. When the plywood is removed and there is currently no way for air to flow under the decking, problems can exist. The two most common are mold and delaminated decking. Make sure once it has been determined that there is no or poor airflow, that air intake and air exhaust are provided along with a vented path that allows the air to move across this space.

Venting is important, but it becomes essential when heat and moisture can combine to create an environment for mold and condesation. A professional roofing company with best practices will let you know ahead of time what the possible fixes might be and the additional pricing. Hire a pro, it is usually much cheaper in the long run,