While having their home undergo an eavestrough repair Toronto homeowners can also have their roof inspected for any leaks that have been troubling them. Finding the exact origin of the leak can get tricky but you can start with the flashing since majority of leaks start there. Because they are vulnerable to weather changes, flashings are the likely culprit, but they are also relatively easier to repair than the roof itself.

If the leak started there and you would have it changed, make sure that the new flashing will have enough give to bear the stress of roof contractions. They should also be primed and painted to protect them from the elements.

You can also work with your roofing contractor in tracing the source of the leak by recreating a rainy condition with the use of a hose. If you have a sloping roof, you can start at the lowest section where you supposed the leak could have started.

This is not a single man operation since you would need someone to stay inside the attic and direct the other person inspecting outside to the possible locations. Once you find the leak, you can then patch it yourself or have a contractor fix it.

Source: http://ideas.reliableremodeler.com/Article.aspx?Title=5-Tricks-to-Spotting-a-Roof-Leak&ID=2916