Polymer Roofing Problems

Quality

• Polymer quality can be difficult to control. On one hand, it can last longer than some roofing materials, such as wood shakes, but on the other hand, they come in several different types with varying levels of durability. This can make it difficult for you to accurately judge how long your polymer roof is going to last. Quality of installation is also important, and contractors have less experience with polymer products than traditional materials.

Cost

• Polymer roofing materials are new and have a more complex manufacturing process than other rooftop substances such as shingles. This means that they can cost more: as much as three times the cost of traditional shingles. It is difficult for many to afford such materials in what is already an expensive project.

Coatings and Membranes

• When it comes to polymer coatings and membranes, they can be useful for waterproofing and fixed leaking problems, and they are more versatile than roofing materials made out of polymer. However, in extreme temperatures, these coatings may not be as effective, and there is no guarantee that the polymer will work with all roofing materials. Cracking and blistering may occur in freezing or very hot weather.

Ecological Considerations

• Polymer roofing materials are made out of epoxies, vinyls, fiberglass and other plastic components. These plastic components may be built using toxic chemicals and processes that environmentally conscious homeowners want to avoid. If you prefer an ecologically healthy option, you can buy versions that use recycled plastic, but these may be even more expensive.