Causes of Roof Leaks

Posted on Jul 23rd 2012 9:27 AM
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There are many reason a roof systems can fail. We have included the must common causes here for your perusal. If any of these conditions is evident on your roof contact us for a free roofing inspection and we will give you a detailed action plan to correct the problem.


This occurs when smooth surface asphalt roofs dry out by being exposed to the sun, causing cracks to form in large segments in the surface asphalt. If not properly repaired this openings can damage the roof membrane causing filtrations to enter the interior of the residence.

Bare Spots:

Granules and asphalts oxidize and wear away overtime because of weathering,causing bare spots.this wearing away causes the roof felts to be exposed to the elements.when roof felts are exposed,due to uv rays and heat,they lose their volatile oils making them vulnerable to moisture absorption and premature failure.


Blisters are formed when there is a lack of adhesion beneath the roofing material and moisture enters, pushing the roofing material up and making it soft and spongy. Foot traffic on the roof can rupture the the blister, cracking the roof membrane and allowing water to enter the roofing system and causing leaks.


Change in color and pulling away of flashing ,needs to be repaired. this leads to premature failure of the system.and causes roof leaking into home or building.


Ruptures are breaks, punctures, and/or cracks that occur in the roofing membrane. Ruptures can be caused by many sources, but whatever the cause can lead to leaks in the interior of the building and damage to the roof insulation, roof system, and roof deck. Repairs should be made immediately to avoid premature failure of your roofing system.


Movement of the substrate can cause splits or fractures in the roofing material. Splits can cause leaks in the interior of the building, saturated insulation, and deterioration of the roof deck.


Heat can cause shingles to calcinate and create leaks. Calcination happens when a shingle system has been exposed to heat and water over the years. Calcination is the final visible sign in the life of your shingle roof.

Tree Obstruction (Wet Spots) :

Trees can accelerate the decay of your roof by not allowing the roof to properly dry itself after rains. The wet spots create by trees over roofs can in time result in leaks over the tree line area. Maintaining your roof systems entails trimming trees over the roof area to allow for proper drying of the system.