Potential Vulnerable Areas on Your Roof

Insulation (under the membrane) – Can lead to leaks or even premature failure of your entire roofing system. When the roof insulation shrinks, curls, or cups it results in membrane attachment problems.

Flexible Wall Flashings – Theses flashings can result in leaks if they slide off the wall.

Penetrations – Penetrations usually occur from lack of maintenance (and in many cases manufacturers will void warranty if the roof has not been properly maintained).

Metal Flashings – Flashings can leak at the joint, or because of rust. If the flashings were installed improperly they can also cause leaks.

Blisters – blisters in the membrane form due to moisture vapor within the roofing application. The blisters can open due to traffic, and result in leaks.

Typical Failures in Base Flashings

Typical failures in base flashings that require repairs include:

  • Tears or splits due to expansion and contraction.
  • Poor adhesion at the top of the base flashing.
  • Open side laps
  • General deterioration

Repair procedures

  • Always inspect the immediate area. Make sure water has not leaked into the affected area.

If it is likely that water has entered the roofing system

  1. Throughly inspect the insulation or roof deck for damage.
  2. Remove any wet or damaged insulation and repair the deck if required.
  3. Install new insulation