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Flat Roofing Specialist! Commercial Low-Slope Systems

Flat Roofer Association

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November 12th, 2012 at 9:32 am

Steps for Roof Recovering

Roof recovering is roofing over an existing membrane. This requires that special considerations be taken.

  • Check for moisture: trapped moisture may cause blisters, damage insulation and, in some cases affect the structural integrity of the deck.
  • Check structural load capacity: make sure that the existing roof can withstand the additional weight of a new roof assembly.
  • Remove walkway pads and all wood blocking: do not roof over wood blocking and walkway pads. Make sure that the existing roof provides a smooth substrate for the new roof.
  • Remove gravel surface: remove all gravel surface with a power broom or vacuum to ensure a smooth surface.
  • Remove and replace wet materials: these can affect the performance of the roof system.
  • Remove coatings: this can be done with a power washer.
  • Remove old flashings

Repair blisters and ridges to achieve a flat substrate. Then make sure the roof surface is free of all dirt and debris.

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