Roof Problems: Short Laid Shingles = Rotting Fascia and Soffit

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One of the most frequent roof related problems we see here in the Raleigh market is rotting fascia board and soffit. If the home has gutters, how can that still allow fascia and soffit rot, you may ask? Lets see if we can sort this out.

One possibility is the gutter is filled with trash. This could prevent rain water to move or flow from the gutter to the downspout properly and efficiently. Water will over-flow the gutter, falling from both the front and the back of the gutter. The simple solution is to monitor the gutters for trash on a regular basis.

However, our problem is not related to trash. It is related to a roofing or shingle problem. Specifically, it is related the length of the roof shingles. We have found that many fascia and soffit problems are due to shingles being improperly installed at the eave. Simply put, the shingles are “short-laid”, meaning they do not extend past the fascia board far enough to allow the rain water to fall harmlessly into the gutter below. In some instances, the shingles extend only 1/2″ past the fascia board.

Unfortunately, too many roofs are improperly installed. Since rain water subscribes to surface tension, the water does not fall directly off the edge of the shingle. On shallow pitched roofs the rain water will move backward, toward the fascia and soffit before it falls from the shingle. In doing so, it falls behind the back wall of the gutter or even into the soffit and begins the rotting process.

What is the solution? We can remove and replace the entire slope of the roof. That would be a profitable solution for the contractor, it is not economically feasible for most homeowners. The solution is to install a “custom” aluminum drip edge.

A custom drip edge is a folded piece of metal. The top portion of the drip edge is usually 2″-3″ high, while the bottom portion, below the fold is also about 2″-3″. The drip edge is notched or cut to accommodate the gutter hanger or spike.

Drip edge can be installed on the fascia board and over the back wall of the gutter. Once properly installed, the rain water falling off the shingles has no choice but to drop harmlessly into the gutter below efficiently solving the problem.

The cost of installing the “custom” drip edge is minuscule by comparison to replacing a roof slope. Also, it is virtually unseen from the ground.

The keys here are to have your gutters maintained as well as inspect the performance of the gutters during a shower to determine if there is a problem. You can potentially save hundreds of dollars in fascia and soffit replacement costs by acting proactively.

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Source by Matt Maresh