Roof Membrane Shrinkage

This includes cracks crazing splitting and ridging of shingles. Roof shrinkage commonly occurs on roofs with synthetic rubber membranes such as epdm. The paper presents conclusions and recommendations for existing roofs.

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Roof shrinkage affects roofs that rely on synthetic rubber membranes most commonly ethylene propylene diene monomer epdm.

Roof membrane shrinkage.

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. As the membrane shrinks it may yank and pull at the wood blocking and gravel stop it s attached to. What is roof shrinkage. In some instances shrinkage can also damage wall masonry.

Epdm roof membrane shrinkage while epdm roofs are easy to install the installation must be carried out by someone who is trained and experienced in installing epdm roofing. Epdm is a relatively sturdy rubber membrane and is often used to seal vehicles windows and you guessed it roofs. Several factors can hasten epdm shrinkage including incorrect application poor manufacturing and faulty roof design. What is roof shrinkage.

Some common reasons for shrinkage are. Epdm membrane roof is black and thin. Although epdm is one of the sturdiest rubber membranes that you can use it s still prone to shrinking over time. These roofing membranes shrink absorbs heat and the adhesives fail due to ultraviolet rays.

Otherwise it is all to easy to fall victim to problems caused by incorrect installation such as shrinkage for example. Membrane shrinkage can also cause visible damage to the roof surface. Generally the membrane composition and properties were found to not change sufficiently to cause excessive shrinkage.

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