Monthly Archives: March 2017

Common Causes for Roof Leaks in Heavy Rain

Even if your roof is well-maintained or fairly new, heavy rainfall is still a cause for concern. The areas of your roof that are prone to pooling water can lead to a leak during heavy rain. Not to mention, your gutters simply may not be able to keep up with the downpour.

Below are some common causes of roof leaks in heavy rain.

Leaking Skylight
It is not uncommon for skylights to leak during heavy rains. This does not necessarily mean the skylight is damaged, but that the condensation from the rain and runoff has a higher chance of leaking through.
Caulking has left gaps that rainwater is seeping into.
In most cases, placing a bucket under the leak will do as a temporary fix. After the rain stops, find a roofing inspector immediately to assess the damages from the leak.

Flat Roofs
Some flat roofs lack the drainage required to keep up with heavy rainfall. If your roof lacks proper drainage, this is an excellent place to begin improvements.
Home and Business Owners with flat roofing must also ensure their roof is properly sealed, and that all eaves and flashings are in good standing. This means that seasonal roof inspections cannot be allowed to fall by the wayside.
Keep in mind that flat roofs don’t always leak in the same manner as roofs with more shape. Instead, you may find drip marks down a large area of your walls or a wet spot on the ceiling.

Chimney Leaks
Chimneys are designed to do an adequate job of keeping the elements out, but your chimney could be the cause of your leaking roof. Homes with chimneys are commonly facing problems with roof leaks.
The outer structure of your chimney often retains water, which can make the roof leak in a hard rain. You must also make sure the shingles and flashing surrounding the chimney are in proper working order.
The flashing is a piece of sheet metal that covers the overlapping areas of the chimney and roof. Two layers of flashing is applied to the chimney and roof, and a sealed with a high-quality urethane caulk.
Naturally this caulk becomes loose over time and creates a pocket for rainwater to seep in. Often times reapplying the caulking could work as chimney leak repair, but flashing may need additional maintenance and a trained eye.

Plumbing Leaks
If you have any vent caps for ventilation exhaust fans on your roof, they may be the source of your leak. Before you climb on the roof to look for leaks, make sure your bath fan duct is insulated.
A fan duct that is not properly insulated will moisten the air. This leads to condensation in the duct. Look out for moisture building in the bathroom walls, or within the attic.
Looking for wet or dark spots when searching for a bathroom exhaust fan leak

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Flat Roof Maintenance IS Important To The Life OF Your Roof

If you have a flat roof and want it to maintain its value and to look its best, a regular flat roof maintenance program is essential. A regular schedule of roof assessment and maintenance will ensure that your roof will hold up to harsh environment exposure, particularly to winter snow and to the overall aging process.

1) Ponding on your roof
A flat roof is particularly vulnerable to “ponding.” Ponding occurs water accumulates in pools when the roof becomes saturated with water from rain or snow. If left undetected and not corrected, this condition can cause leaking and serious structural problems – even roof failure which could result in damage to the interior of your home.

2) Splitting in roof material
When inspecting your roof, look for splits or long cracks that, if present, will be visible parallel joints of your insulation. These will often appear spongy. These cracks are caused by poor workmanship, freeze-thaw conditions and surface stress.

3) Roof blistering
If the wrong bitumen is used on your roof, or if the roof is exposed to excessive heat, this could cause some, or all, of the felt layers on your roof to move.

4) Roof ridging
Ridging usually takes place in bituminous (built up) roofs in the insulation joints, due to moisture that condenses under the felt. These ridges may appear as long, narrow cracks and are typically the result of the roof membrane having been poorly attached.

5) Membrane Fasteners
If your roof is a fastened system, you should examine it for loose fasteners. The fasteners may become loose because they were not long enough or because of water saturation.

6) Felt Movement
If the wrong bitumen is used on your roof, or if the roof is exposed to excessive heat, this could cause some, or all, of the felt layers on your roof to move.

7) Snow Removal
If you live in an area where with heavy snow fall, you will want to be very careful that your flat roof doesn’t accumulate too much snow. This excessive snow could put your roof in danger of collapsing. If there is an accumulation of over 12 inches of snow, you should find a way to have the snow removed. But be aware that removing snow from a roof can be dangerous. Every year there are serious injuries to those who remove roof snow without adequate experience and equipment. Therefore, if possible, hire someone who has the proper equipment and expertise in roof snow removal.