Top Reasons Why Your Roof Is Leaking


how to find a leakA leaking roof is a common source of irritation for many homeowners. Even worse, it can cause serious damage to your home and be a very costly repair. 

The fact is at one time or another, every roof will leak. While roof leaks are worrisome, the reason and source of the leak may be easy to spot and fix. In this article, we will review how to find a roof leak and the reasons why your roof may be leaking.  

Heavy Foot Traffic  

Sometimes walking on the roof is necessary, but it can cause damage. While your roof can sustain some foot traffic, heavy foot traffic without the use of walk pads can not only damage your roof but cause a leak. Additional problems can occur as a result of dropping tools or mishandling parts while walking on the roof.  

Membrane Issues  

A roofing membrane is a thin, single layer of material commonly used on commercial buildings and residential roofs with slopes of less than a ratio of 3:12.  This material provides a watertight seal that can last up to 30 years. However, a membrane that isn’t secure can lead to a roof leak.  

Inclement Weather 

Weather will cause its share of wear and tear. The roof is exposed to all sorts of inclement weather such as intense heat, snow, and ice, which can cause ponds of water to develop. These ponds can lead to a leaking roof, in addition to the regular damage weather can cause that can result in a roof leak. 

Equipment Issues  

HVAC units and exhaust fans are common spots for roof leaks. Since ventilation isn’t waterproof, heavy rain can seep through the equipment. Look for loose screws, dyed-out washers, or gaskets, which can be signs of a leak caused by your equipment.  

Broken Shingles  

Damaged or broken shingles will not give the necessary protection against heavy rain or snow. If you suspect or see a broken shingle, you should contact a professional roofer immediately.  

Clogged Gutters  

Gutters are the main way to collect and remove rainwater from the roof. They help keep the home dry. When a gutter becomes clogged with leaves or debris, the water won’t drain, which can lead to a pool on the roof that can cause leaks.  

Chimney Issues  

An uncovered chimney will allow rain and moisture into the home. The chimney crown or the very top of the chimney could also have a crack in it.  

Improperly Sealed Roof Vents 

Roof vents keep air flowing through the attic and regulate the roof’s temperature. But an improperly sealed roof vent can cause a water leak.  


A more obvious reason for a roof leak is a hole. As with any roof problem, if you notice a hole in your roof shingle or other part of your roof equipment, contact a professional immediately.  

Attic Condensation  

Attic condensation is often assumed to be a roof leak. Condensation develops when humid air comes across a cold surface. Although both condensation and leaks cause pools of water, the biggest difference is the source of damaging moisture. 

Cracked Roof Flashing 

Roof flashing is a thin sheet of material that covers seams and crevices on the roof. While a cracked shingle is more commonly the source of roof leaks, cracked roof flashing may cause them as well. 

Improperly Sealed Valley 

A roof valley is when two roof facets come together at a slope and form an interior angle. This area allows water to flow down properly. If this valley is improperly sealed, a leak may occur.  

Ill-Fitted Skylights  

Skylights are windows that are installed on the roof. These windows increase the amount of natural light coming in. However, if not properly installed or maintained, they can also be the source of leaks.  

Let Us Fix Your Leak 

Although taking care of a house takes time and effort, it is necessary for the safety and comfort of your household. If you suspect your roof has a leak, save time by contacting a roofing professional.  

Let a CertainTeed professional take a look at your roof. We are here for all of your roofing concerns and will find the source of your leak as soon as possible.  

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