Wednesday, 4 November 2015

Top 5 Causes of Roof Leaks

Top 5 Causes of Roof Leaks

Any roofing contractor can tell you that your roof is leaking, that much is obvious and the reason why
the call is made in the first place. What requires expertise is determining the leak’s origin and identifying its cause.
As a professional roofing contractor, it is our business to diagnose these types of problems on a daily basis. Below is a list of the most common roofing problems that we encounter in regards to a leaky roof.

1: Broken Shingles

No matter which material a roofing shingle is made of, it is susceptible to cracking, erosion and other damage. A shingle’s job is to protect the roof from water damage and rotting. Being so high up on a roof, shingles are often out of range from a home owner’s vision and when damaged, go unnoticed. It doesn’t take very long for a broken shingle to translate into a leak inside the home. Therefore, regular inspections of your roof are important.

2: Damaged or Improperly Installed Flashing 

One of the biggest issues that we see in roofing systems is damaged or improperly installed flashing. Flashing is the metal material that is used to line joints, seams and other transition points on a roof providing water protection. Because the material is metal, flashing is highly susceptible to corrosion, rusting and even bending with the natural shifting of a structure. Flashing is only visible in certain places, and can lie beneath the shingle surface. An experienced roofing contractor will know exactly where the flashing lies and will be able to inspect it safely without causing further damage to a roof.

3: Plumbing and Ventilation Leaks

Many home owners have plumbing and ventilation systems ran through the roof of their house. Most roofing contractors advise against it, due to the frequent occurrence of leaks, but we see it all the time on roofing jobs. If you have a leak in your roof and pipes, hoses or other ventilation is in the vicinity, there’s a good chance that this is the culprit. Hire a qualified roofing contractor to perform a professional inspection and diagnose the cause of your leak.

4: Cracked or Corroded Chimneys

In roofing, chimneys are also a common cause of roofing leaks. Whether the chimney is metal, brick or stone masonry, it can be susceptible to cracking, swelling, corrosion and other degradation over time. When we visit a roofing site with a chimney, it is one of the first places we inspect for a leak. These areas also emit heat during the winter season, creating a constant “freeze / thaw” cycles on the roof. This may lead to ice dam issues which in return cause leaks in the winter. This can be corrected in most cases by having a self sealing membrane installed under the shingles in the area.

5: Skylights

Skylights are beautiful and add a generous amount of sunlight to your home, but they can also
inadvertently add water and cause leaks inside. A skylight is nothing more than a hole in your roof, covered by glass and secured with caulking and other materials that break down over time. If you have a leak in your roof and have had a skylight installed (whether it was recently or several years ago), this may very well be the cause. Again like a chimney, skylights are a source of heat loss from the home. This may cause ice dam conditions in that area during the winter season. Correct installation with proper materials is vitally important.


Don’t try to fix something with a tube or can of tar. If tar is required to stop a leak on a sloped shingled roof, then you have a serious problem. Tar patching is a band aid solution which will return to haunt you sooner than later.

If you have a leaky roof seek the advice of a professional roofing company. A. Shaw Roofing is a professional roofing company with over 25 years of experience, servicing the Great Edmonton and Alberta region. Call us at 780-934 ROOF to schedule an appointment for a free estimate.
You can visit our website at


  1. I guess this blog is perfectly incomparable. roofing company

  2. Withour any causes if you have house you will be must need roof rapair.
    Roof Repair Service

  3. I am really impressed along with your writing skills and also with the format on your blog.
    Roofer Abingdon

  4. Leaking roofs is a serious problem which should not be avoided and it is mainly caused by the excessive range of rainfall or by the bad weather. The roofers are skilled enough and mainly uses the tool sand equipments which helps to remove all kinds of damages and cracks in the rooftops.

  5. This comment has been removed by the author.

  6. That is very good comment you shared. Thank you so much that for you shared those things with us. I really like it.
    AKSHAYA ROOFINGS (12 Years Exp) for Roofing Contractors Chennai / Industrial Metal Roofing Contractors Chennai / Warehouse Shed Roofing Contractors Chennai / College, School Roofing Works Chennai / Indoor Badminton Court Roofing Chennai / Arch Roof Contractors, Godown Shed Fabrication, Work Shop Roofing Shed / Structural Roofing Contractors in Chennai / Marriage Hall Shed in Chennai / Auditorium Contractors in Chennai / Polycarbonate Roofing Contractor Chennai

    Roofing Contractors in Chennai
    Metal Roofing Contractors in Chennai

  7. Good deal for this roofing service. When i need this service for my own home i will must contract to you: Roofing Contractors

  8. Tuflite polycarbonate roofing sheets are perfectly designed to take on harsh weather conditions and impacts from rain, hail and stone.
    Polycarbonate Greenhouse Panels|Polycarbonate Multiwall Sheets

  9. Roof maintenance must be in schedule so that you cold know the condition of your roof. treat little leaks so that they can not Roof Repair Contractors

  10. Good post, Thank you for sharing reasons for roof leaking and letting us know about shaw roofings. Keep posting such posts

  11. Temperature changes through the day and throughout the year, which results in expansion and contraction of the sheets.
    Polycarbonate Roofing

  12. The renovation should be thoroughly Inspected by a qualified person from the company before being considered completeIan