Roof Membrane Shrinkage

Some common reasons for shrinkage are.

Roof membrane shrinkage.

Roof shrinkage affects roofs that rely on synthetic rubber membranes most commonly ethylene propylene diene monomer epdm. Several factors can hasten epdm shrinkage including incorrect application poor manufacturing and faulty roof design. Damage to the roof s surface. This includes cracks crazing splitting and ridging of shingles.

The paper presents conclusions and recommendations for existing roofs. Membrane shrinkage can also cause visible damage to the roof surface. Its causes include aging of the material poor installation and uv exposure. In some instances shrinkage can also damage wall masonry.

This membrane protects your roof from extreme temperatures and weather and even from the damage from objects that could potentially puncture your roof. Epdm is a relatively sturdy rubber membrane and is often used to seal vehicles windows and you guessed it roofs. Shrinkage is most common on epdm or modified bitumen roofs. Roof shrinkage commonly occurs on roofs with synthetic rubber membranes such as epdm.

All components must be attached uniformly and securely including membrane to insulation insulation to vapour barrier. Rather it refers to the shrinkage of the membrane that coats your roofing materials. As the membrane shrinks it can begin to pull away from the flashing thus creating openings for leaks. Although epdm is one of the sturdiest rubber membranes that you can use it s still prone to shrinking over time.

As mentioned earlier incorrect application of the roof membrane is one of the causes of premature epdm shrinkage. A few decades ago unreinforced rubber roof systems were plagued by shrinkage problems but thanks to technological advancements and improvements to epdm roofs the problems have diminished. Epdm roof membrane shrinkage. Your membrane is what protects your roof from hot and cold temperatures as well as from extreme weather.

This coats the roofing materials and provides something of a protective layer for the roofing materials. Laminating any material introduces weak points that can cause the material to shrink crack craze and deteriorate over time. Otherwise it is all to easy to fall victim to problems caused by incorrect installation such as shrinkage for example. Roof shrinkage refers to the shrinking of the membrane of your roof.

In fact it is common for some cheaper tpo roofs to develop cracks in the surface relatively quickly. This is due in part to the fact that the top layer of the material is laminated. To help prevent shrinkage problems the following guidelines should be followed in preparing drawings and specifications and installing built up roofs. Generally the membrane composition and properties were found to not change sufficiently to cause excessive shrinkage.

How can it be avoided. All insulation stops and. What is roof shrinkage.