4 Possible Culprits Behind a Sagging Roof

June 4, 2021 by Heritage Roofing

A sagging roof not only affects the beauty of your home; it is a type of functional roof damage that requires immediate attention. Fortunately, most of its causes are known and can easily be prevented. Local residential roofing contractor Heritage Roofing Co. explains the four possible culprits behind this common roof issue.

1. Roof Weight

Any roofing structure must be built to exact specifications, making sure it is strong enough to support its weight. This might be insignificant if replacing the current roof with the same or lighter roofing material, but it is an essential factor when choosing tile, slate, or anything heavier than asphalt shingles or metal panels. To prevent sagging rooflines, expert roofers either reinforce the existing support structure or build a new one.

2. Old Age

An asphalt shingles roof that is beyond the end of its lifespan can no longer hold itself up. A sagging roofline is one indication that the roof, including the entire support structure, must be replaced with a new one. Keeping your roof well-maintained may not guarantee its preservation, but it can certainly minimize its deterioration.

3. Moisture Damage

Too much moisture can weaken the roof’s support structures, which can lead to sagging if not addressed promptly. Over time, you may notice the roofline bowing or curving. Get up the attic and you might see signs of rot or mold infestation on the wooden components. This problem can be avoided by fixing small leaks before they become worse and ensuring the attic is properly insulated and ventilated.

4. Low-Quality Materials

Unscrupulous roofers utilize substandard materials to reduce installation costs. Problems caused by second-grade asphalt shingles or untreated lumber may not be obvious during the first few months of installation, but the roof may sag over time due to exposure to elements combined with the weight of the structure.

Count on Heritage Roofing Co. for your roofing needs. We have many years of experience dealing with all sorts of roofing issues, including sagging. We perform a thorough inspection of your roofing system, from the decking to the roof surface. Call (803) 393-8703 or fill out our contact form to request a free estimate.