Roof shrinkage commonly occurs on roofs with synthetic rubber membranes such as epdm.
Roof membrane shrinkage.
What is roof shrinkage.
What is roof shrinkage.
Membrane shrinkage can also cause visible damage to the roof surface.
Epdm is a relatively sturdy rubber membrane and is often used to seal vehicles windows and you guessed it roofs.
Roof shrinkage affects roofs that rely on synthetic rubber membranes most commonly ethylene propylene diene monomer epdm.
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.
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.
Some common reasons for shrinkage are.
This includes cracks crazing splitting and ridging of shingles.
As the membrane shrinks it may yank and pull at the wood blocking and gravel stop it s attached to.
Several factors can hasten epdm shrinkage including incorrect application poor manufacturing and faulty roof design.
The paper presents conclusions and recommendations for existing roofs.
Generally the membrane composition and properties were found to not change sufficiently to cause excessive shrinkage.
These roofing membranes shrink absorbs heat and the adhesives fail due to ultraviolet rays.