Because rubber shingles are so sturdy there are few problems with their actual shipping use installation or long term effectiveness.
Rubber roof shingles problems.
Rubber will inevitably shrink leaks another inherent design problem is that after a few years this roof membrane simply begins to shrink slowly pulling away from parapet walls flashings corners drains and other areas.
A properly installed rubber roof will withstand wind uplift up to 110 mph and as you may guess most hail stones up to 2 inches in diameter will bounce off the rubber shingles rather than breaking them.
You will find warranties offering hail protection for stones up to two inches that s bigger than the size of a golf ball in diameter.
Three most common problems with rubber roofs is improper installation shrinkage and the seams.
Epdm roofs are fully adhered or as many call it glued down.
Common problems with rubber shingles.
However rubber shingles are expensive especially when compared to other low grade shingle materials like asphalt.
Possible environmental effects of chemicals in the runoff from these roofs though certainly not unique as those issues occur with other roofing products as well including epdm metal and asphalt roofing.
Odor complaints tracked to rubber roof shingles made from cut sections of tires or similar products.
Virtually the only negative for a rubber roof is appearance and even that drawback can be overcome with the use of rubber shingles or acrylic paint.
The system is not attached mechanically.
One of the biggest reasons a rubber roof can fail is from improper.
While the rubber roofs are known to be durable they also need maintained.
Shrinkage is a particularly serious problem on a larger size roof.