Homeowners often find themselves at a crossroads when it comes to making decisions about their roofing needs. While the concept of a roof-over — installing a new layer of shingles over an existing roof — might seem appealing due to its cost-effectiveness and simplicity, roofing contractors typically advise against this practice. Keep reading to find out the reasons why professionals are hesitant to recommend roof-overs and strongly advocate for complete roof replacements instead.
One of the primary concerns with roof-overs is the additional weight that an extra layer of shingles adds to the existing roofing structure. Most homes are designed to support a specific amount of weight, and doubling up on roofing materials can strain and potentially compromise the structural integrity of the building. The added weight of a roof-over might lead to serious issues, including sagging or even collapse, particularly under heavy snowfall.
Another significant issue with opting for a roof-over instead of a complete roof replacement is the missed opportunity to inspect and repair any underlying damage. Moisture infiltration, rot and mold can lurk beneath the surface of your existing roof, causing long-term damage that remains undetected until it turns into a major problem. Professional roofers prefer to strip away the old materials to thoroughly assess and fix any underlying issues, ensuring the longevity and integrity of your roof.
While a roof-over may initially seem less expensive, it can ultimately compromise the lifespan of your new roof. Layering new shingles over old ones can prevent the new materials from lying flat and adhering properly, which can lead to faster wear and tear. Moreover, many shingle manufacturers may void the warranty on materials used in a roof-over, leaving homeowners without coverage should problems arise.
Roof-overs can result in a less aesthetically pleasing appearance, with mismatched materials and visible irregularities. This can affect curb appeal and, subsequently, the resale value of the home. A complete roof replacement, on the other hand, ensures a uniform and appealing look, enhancing the overall aesthetic of your property.
Effective roof ventilation is essential for maintaining an energy-efficient home. A roof-over can disrupt the existing ventilation paths, trapping heat in the summer and cold in the winter, which can lead to increased energy bills and discomfort. By choosing a complete roof replacement, your roofing company can ensure that ventilation systems are properly integrated and functioning, contributing to the overall energy efficiency of your home.
Roof Masters understands the importance of a well-constructed, durable roof. With our expertise in full roof replacement, we ensure the structural integrity, longevity, and aesthetic appeal of roofs. Call us at (301) 230-7663 or fill out our contact form to schedule a consultation. We serve clients in Rockville, MD, and surrounding areas.