Why Do Roof Shingles On The South Slope Deteriorate Quickest

4 edition 2006 isbn 10.

Why do roof shingles on the south slope deteriorate quickest. If asphalt roof shingles must be applied on such a low slope say for. Roof shingles may deteriorate faster and need to repel more water than wall shingles. The quality and cost of asphalt roof shingles vary widely and it s generally recommended to stay away from cheap roof shingles as they are the quickest to fall apart and require roof replacement. According to the national roofing contractor s association nrca and the asphalt roofing manufacturers association arma roofing guidelines conventional roof shingles should not be used on slopes less than 3 in 12 that is 3 of rise in 12 of run on a roof slope.

Harsh weather is the main reason shingles deteriorate sooner than expected and the following elements are the most common culprit. The edge of a roof in professional vernacular is called the rake edge. Here are 10 of the most frequently seen roofing mistakes. Starter shingles installed incorrectly or not at all.

Shingle deterioration tends to accelerate in the final third of a roof s lifespan even under normal conditions. How to cut shingles off the edge of a roof in a straight line. Many do it yourselfers make this mistake before they even begin. The minimum requirement is 2 12.

6 common reasons behind deterioration of your roof. Low slope roofing manual of 4th ed c w. Shingles historically were called tiles and shingle was a term. Rain snow ice moisture is roof s enemy 1.

Some portions of the roof are affected by prevailing winds more than others. It can damage its structure cause mildew rot decking and even damage the insulation. Asphalt roof shingles are available as the common 3 tab shingle or the more durable architectural roof shingle. Degree of roof slope.

Leaf debris on the roof especially in valleys the tannic acid seeping though of a pile of rotting leaves in the valley of a roof stains and attacks the shingles while slowing water drainage. Shingles of all types need to have a slope to function properly. Putting a new roof onto a home is an expensive but necessary cost for homeowners. However a roofing project that is characterized by shoddy or amateur workmanship can lead to higher costs in the long run.

As they approach the end of the accelerating deterioration slope most shingles will have common failures. South facing roof slopes have shorter lifespans due to increased thermal cycling and uv exposure. That works out to about nine degrees if that works better for you. The rake edge is the extreme edge of the roof on either side.

They are a very common roofing material in the united states. Griffin richard fricklas mcgraw hill professional. Roof failure causes in depth and specific methods for avoiding them roof design fundamentals and flourishes based on voluminous industry research and experience.