Roof Membrane Shrinkage

Some common reasons for shrinkage are.

Roof membrane shrinkage.

This includes cracks crazing splitting and ridging of shingles. To help prevent shrinkage problems the following guidelines should be followed in preparing drawings and specifications and installing built up roofs. What is roof shrinkage. Roof shrinkage refers to the shrinking of the membrane of your roof.

Epdm roof membrane shrinkage. Although epdm is one of the sturdiest rubber membranes that you can use it s still prone to shrinking over time. The paper presents conclusions and recommendations for existing roofs. Epdm is a relatively sturdy rubber membrane and is often used to seal vehicles windows and you guessed it roofs.

In some instances shrinkage can also damage wall masonry. All insulation stops and. Damage to the roof s surface. Generally the membrane composition and properties were found to not change sufficiently to cause excessive shrinkage.

As the membrane shrinks it can begin to pull away from the flashing thus creating openings for leaks. This coats the roofing materials and provides something of a protective layer for the roofing materials. Shrinkage is most common on epdm or modified bitumen roofs. Laminating any material introduces weak points that can cause the material to shrink crack craze and deteriorate over time.

Rather it refers to the shrinkage of the membrane that coats your roofing materials. This is due in part to the fact that the top layer of the material is laminated. Several factors can hasten epdm shrinkage including incorrect application poor manufacturing and faulty roof design. Roof shrinkage affects roofs that rely on synthetic rubber membranes most commonly ethylene propylene diene monomer epdm.

What is roof shrinkage. How can it be avoided. As mentioned earlier incorrect application of the roof membrane is one of the causes of premature epdm shrinkage. Membrane shrinkage can also cause visible damage to the roof surface.

Roof shrinkage commonly occurs on roofs with synthetic rubber membranes such as epdm. This membrane protects your roof from extreme temperatures and weather and even from the damage from objects that could potentially puncture your roof. When it shrinks your roofing materials be they roof shingles or metal roofing are subject to cracking tearing ripping and ridging. Otherwise it is all to easy to fall victim to problems caused by incorrect installation such as shrinkage for example.

Its causes include aging of the material poor installation and uv exposure. Your membrane is what protects your roof from hot and cold temperatures as well as from extreme weather. In fact it is common for some cheaper tpo roofs to develop cracks in the surface relatively quickly.