Roof Leak Where Two Gables Meet

Valley rafters and valley jacks where two gable roof lines meet the intersection forms inside corners called valleys.

Roof leak where two gables meet.

Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. If your steep roof creates a sharp valley where it meets the chimney you may have a buildup of leaves sticks or other debris that sit above your chimney. If your roof is older it is possible that the leak is within the roof field.

Ground zero for roof rot is often where roofs meet walls. Other materials such as slate concrete tile or clay tile may not be so forgiving. Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter. Water will reflect light so bring a flashlight along.

More questonable or ugly roof wall flashing examples. This should cover the most leak prone areas. Flashing is the key to a skylight that won t leak water into the roof cutting a hole in a perfectly water tight roof is asking for trouble and true to form skylights. If your roof is asphalt then you can walk around with ease.

This means the expanse of shingles slate shakes whatever. The gables over the set back porches guarantee that snow accumulates up against the siding they ve combined gable vents with ridge vents short circuiting the soffit venting paths the double gable dormer valley is incapable of soffit to ridge venting on the valley side pitches where the dormer ridge meets the upper roof the ridge vent is guaranteed to be buried for months in sloughing snow from the higher roof probably leaks drips. Two ways to flash roof edges. The field of shingles.

If you don t direct water from the roof into a gutter it can pour into the wall. The diagonal rafter that runs from the intersection of the ridges down to the. Once you locate the source of the water mark the area. If leaks continue to occur from ice dams consider installing roof edge heating cables.

Below we illustrate that using a single piece of metal flashing where the uppermost edge of a shed roof abuts a vertical building sidewall works fine though the use of exposed nails see our photo below may form leak or wear points in the roof. The goal is to find the leak before the entire roof goes bad. This should cover the most leak prone areas. If you have an attic the easiest way to spot the leak is to up there on a rainy day.

These valleys are the meeting points between 2 roofs which are highly dangerous areas as they are not only prone to water seepage but their structure also makes it difficult for them to be effectively waterproofed. If leaks continue to occur from ice dams consider installing roof edge heating cables. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in.