Roofing
Requirements
The following information will help you determine your roofing repair and construction requirements. Please contact us if you have additonal questions.
Mangold Roofing
To see the information on the topics listed below, just click on the button
beside each topic. Use the "Top" selection at the bottom
right of the screen to return to this menu. And remember, notify your
insurance company immediately when you suspect you have a damaged
roof that will require repairs.
How
do I tell if my roof needs repair - conducting a physical examination.
A
Shake Roof that should be replaced.
A
repairable Shake Roof.
A
Deteriorated Composition Shingle.
Picture
of a health roof.
Tar
and Gravel Roof in good condition.
Defects
in Tar and Gravel Roof.
A PHYSICAL EXAMINATION OF YOUR ROOF
Even if you are having a leak problem, it does not necessarily indicate that a new roof is imminent. The age of the roof and the “signs of deterioration” determine if repairs are a viable solution or you need a complete re-roof. See the pictures below for examples of deterioration.
The signs of deterioration on any type of roof system can be attributed to a combination of ultraviolet rays from the sun, storms, insects, and temperature changes. Ultraviolet rays are probably most damaging; therefore it is quite common to find one area of your roof showing more severe deterioration than others. Structural damage from termite, hail, wind, rotting or settling of the house structure or chimney can cause damage that is sometimes hidden from view.
Keeping your roof free of debris is critical to the integrity of any roof system. Also, traffic should be kept at a minimum; only walk on your roof when it is absolutely necessary to perform maintenance such as cleaning the gutters, skylights, or the roof itself. The steeper the pitch or the slope of the roof, the more life expectancy you can expect from your roof.
If you have a TILE ROOF SYSTEM, the life expectancy is 30-100 years.
The integrity of a tile roof is totally dependant on the roof underlayment.
The tile, itself, can last forever but will not keep your home watertight
unless the underlayment is intact. For this reason, it is advisable when
installing a Tile roof system to use a minimum of 2 layers of #30 felt,
although Code requires only one layer and is acceptable in the industry.
Tile roofs can be deceiving when evaluating the condition of your roof.
The tile may appear to be in excellent condition; it is not possible to
inspect the underlayment without removing the tile. For this reason, repairs
on Tile roof systems are more costly than other types of systems. When
the underlayment does deteriorate, the only solution is to remove the
existing tile, replace the underlayment and re-install the tile. You can
anticipate a 5% - 25% breakage of tiles during this process depending
on the type of fasteners used for the original installation and whether
mortar was used or not. Replacement tile cannot always be secured to match
your existing; anticipate the possibility of using a similar tile to complete
the project.
SHAKE ROOF THAT SHOULD BE REPLACED
If your current roof is a SHAKE ROOF SYSTEM, you can expect
a life expectancy of 20-25 years depending on the quality of shakes originally
installed. Signs of deterioration include missing shakes, burnt or curled
shakes, and exposed felt.
REPAIRABLE SHAKE ROOF
If only random areas on the roof reveal these signs of aging, it is
possible that a “tune-up” could extend the lifespan for another
3-5 years. The main objective of the “tune-up” is to ensure
that the felt is not exposed. If the felt is exposed to the sun for any
length of time it is a guaranteed leak in the near future.
DETERIORATED COMPOSITION SHINGLE
If your current roof is a COMPOSITION ROOF SYSTEM, you can expect a life
expectancy of 15-20 years. The newer shingles have a longer life expectancy
ranging anywhere from 25-40 years. The signs of deterioration include
cracking or breaking, balding or excessive granules in the gutters. Once
the shingles display the symptoms described, the only solution is for
roof replacement.
PICTURE OF HEALTHY ROOF
If you have a TAR & GRAVEL ROOF SYSTEM, also referred to as BUILT-UP, HOT-MOP, and ASPHALT AND CAPSHEET SYSTEM, you can expect a life expectancy of 10-15 years. In rare cases, these types of systems do last longer, but that is only under the best circumstances.
These types of roof systems are typically applied to flat roofs; however, some pitched roofs do have these types of systems. When re-roofing a roof with adequate slope, you will always want to select a shingle system for replacement as the life expectancy is longer and shingle systems are more affordable and more attractive.
Signs of deterioration include missing gravel, cracking and blistering. As asphalt based systems age, they dry up and become brittle. Any movement or settling of the structure will cause cracking. When these symptoms are prevalent in the majority of the roof, the success rate for repairs is not good. Water will travel through the field making repairs difficult to achieve a watertight status.
TAR & GRAVEL ROOF IN GOOD CONDITION
EVIDENCE OF DEFECTS IN TAR & GRAVEL ROOF
Typically repairs to these types of roof systems will involve 3-coursing any cracks, meaning applying mastic, webbing, and mastic with granules to shear up the strength in an area. Sometimes, applying a coating will extend the life. Most often, if you are experiencing a history of leaks more than 1-2 rain seasons, it is time for a new roof. There are roof systems available on the market now that will end the most common flat roof problems.
