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Aurora Roofing: Article About Roof Valley Types

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Roofs are architectural designs that keep moisture from damaging interior building areas over several decades. Most roofs aren't flat surfaces, but combine both high and low lying areas. These low lying drainage areas are called valleys. Rainwater usually funnels down their lengths and empties into nearby gutters. Aurora roofing professionals can install either open or closed valley roof areas, but homeowners should understand their differences and features before selecting a style.

A common rooftop style choice is open valleys. Shingles from two adjoining slopes butt closely together near a low lying valley area. Instead of continuing the shingle installation, contractors add flashing down this vertical gap. The finished product is a narrow metal strip ready to funnel water off the roof. Some contractors even trim shingles close to the flashing to make the metal appearance as subtle as possible.

When homeowners want a seamless appearance to the rooftop, a closed valley is chosen. Contractors add underlayment and flashing along roof decking during a basic installation. Instead of allowing the flashing to remain open to the elements, roofers fill in the low lying area with shingles. Contractors weave shingles together at this meeting point, creating an aesthetically pleasing flow across the surface. If any leaks occur at this juncture, protective flashing below can direct moisture.

The expert roofers at Roof Worx of Aurora can assist you with any questions regarding shingle roofing or roof leak repair.

Open valleys are leak free designs over many years, but they must be installed with expert hands. If shingles don't perfectly align with flashing along its metal length, leaks develop at these transition points and water drips under shingle layers and onto roof sheathing. Contractors must verify each shingle is properly nailed for adequate leak control. With shingles firmly affixed to the surface, vertical flashing takes on the brunt of all weather forces to protect the valley.

When homeowners want a closed valley for their rooftop, extra labor charges are usually added to the contract. It takes time and skill to weave shingles over hidden flashing, for example. Homeowners should also note that these low lying shingles will be more prone to weathering because of their rooftop drainage location. Frequent inspections keep these areas healthy and leak free.

Because most valleys have sharp angles down to gutters, homeowners can easily observe these areas from ground level. If any materials appear loose or missing, contact roofers immediately. The next rainstorm could create leaks into the home. From the structure's hip points to tall ridges, all rooftop components work together to move water swiftly away from vulnerable building areas.

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