In our previous blog, we reviewed some of the common problems that commercial roofing often experiences. Many of these problems can be prevented with regular care and maintenance from a professional commercial roofing company. To help save commercial property owners from losing time, money, and hassle due to these problems, we are going to continue to review some additional problems that these roofing systems often face.

Common Commercial Roofing Problems, Part II

Poor Commercial Roof Installation or Repairs

Flat Roof Replacement from S&S RoofingWhen your commercial roofing system is installed by an inexperienced or careless roofing company, it will likely cause problems down the road. Faulty installation of any roof increases the chances of leaks, which can lead to structural damage. Improper repairs are also an issue that should not be taken lightly. A superficial repair by a scam roofing company will fail to fix the underlying issue that will get worse as time passes. However, faulty installation and repairs can be avoided by hiring a professional, experienced, and reputable commercial roofing company.

Blow-Offs and Uplifts

Blow-offs and uplifts are also a common problem commercial roofing faces. When wind overflows on any roof, the pressure above the roof will decrease, while internal air pressure increases as air escapes through cracks and openings. This causes an upward force known as a wind uplift. When stronger than the attachment of a commercial roof, a wind uplift can cause it to blow-off. The best way to prevent this detrimental damage from occurring is to have your roof routinely inspected and maintained by a roofing professional. They will be able to ensure your roof is properly adhered to avoid uplifts.

Poor Flashing

Flashing is often installed on walls, curbs and around objects protruding from the roof, like pipes and chimneys, to deflect water from seams or joints. Faulty flashing is one of the most common causes of leaking in many buildings and facilities. It most often fails due to the expanding and contracting that occurs, causing the flashing to tear or break.

Roof Shrinkage

When the membranes that overlay the roofing materials are poorly designed, installed, or vented they will begin to contract and cause damage to your roof. The best defense against roof shrinkage is the proper installation in the first place. However, if you are already experiencing damage due to improper installation, an experienced roofing company may replace the affected sheets and decrease the pressure by cutting the flashing and installing a new material.


Blistering is another issue that may arise on your commercial roof, although it is typically only found on certain types of roofing. Blisters are pockets of trapped air or moisture that form between layers of the roofing membrane. When the blisters become larger, they will start to cause the membrane to stretch further and further apart. Often times, blisters will be large enough to cause the roofing membrane to crack.

If you take the time to inspect your roof closely, blistering is fairly easy to spot. A blister will make the surface of your roof appear bubbly, uneven, and lumpy. If you notice that your roofing is blistering, call a roofing professional. Blistering is a recurring problem that will not go away unless it is repaired by a professional. Usually, the layers of the membrane will need to be cut through until there is a layer that has not been affected by stretching. Then, new layers of roofing membrane will need to be properly installed to make the roofing system whole and efficient again.

These issues, along with the other common commercial roofing problems, can all be prevented by taking the proper measures. It’s not only essential that a commercial roof is installed by a certified roofing contractor, but that it is regularly cared for and maintained.

If you are in need of commercial roof repairs or are due for an inspection, contact S & S Roofing!