Adding a New Roof Over Shakes? – On the House

Adding a New Roof Over Shakes?

By on April 17, 2014
roof replacement

Question

We will be putting a new roof on soon and it will most likely be a light weight tile one. We currently have a heavy shake roof. Should we remove the shakes before the tile roof is put on or should the tile roof be put over the shakes? I have seen both approaches lately and am not sure which would be better.

Dave

Answer

We too have seen both approaches and are even familiar with some firms who, as part of their advertising, tout leaving the existing shakes and installing the new roofing over them. They claim that by doing it this way, the job will go faster and will result in cost savings to the homeowner. Baloney! We strongly recommend that all of the existing roofing be removed before a new roofing is installed. The wood sheathing below the roof is highly susceptible to fungus damage and dry rot that will continue to spread if left untreated. Roof replacement is as excellent time to make a thorough inspection of the roof sheathing and make any needed repairs. This would be impossible if the new roof is installed over the existing roofing.

True, there is a cost attached to this, but, comparatively speaking, it is only a small part of what the new roofing job will cost. Besides, if dry rot does exist and it is not dealt with now, it could cost significantly more to make the repairs later.

However, for some reason, you’re unsatisfied with your roofing, we’ll do everything in our power to repair the situation (and your home too, if necessary!). Check Out Our Commercial Roofers in North Carolina – Huntersville Roofers and we’ll be glad to help you!

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