Roof Membrane Shrinkage

This includes cracks crazing splitting and ridging of shingles.

Roof membrane shrinkage. What is roof shrinkage. In some instances shrinkage can also damage wall masonry. Membrane shrinkage can also cause visible damage to the roof surface. These roofing membranes shrink absorbs heat and the adhesives fail due to ultraviolet rays.

Generally the membrane composition and properties were found to not change sufficiently to cause excessive shrinkage. As the membrane shrinks it may yank and pull at the wood blocking and gravel stop it s attached to. Some common reasons for shrinkage are. Ethylene propylene diene monomer also known as epdm is a synthetic rubber with an elastic nature and is the same type of rubber used to make inner tubes of tires.

Roof shrinkage commonly occurs on roofs with synthetic rubber membranes such as epdm. Although epdm is one of the sturdiest rubber membranes that you can use it s still prone to shrinking over time. Epdm membrane roof is black and thin. Roof shrinkage affects roofs that rely on synthetic rubber membranes most commonly ethylene propylene diene monomer epdm.

Otherwise it is all to easy to fall victim to problems caused by incorrect installation such as shrinkage for example. Several factors can hasten epdm shrinkage including incorrect application poor manufacturing and faulty roof design. What is roof shrinkage.