When it’s time to replace an old roof, some homeowners might entertain the idea of a roof-over, a process where a new layer of shingles is installed over the existing one. While it may seem like a cost-effective and quicker solution, most roofing contractors advise against this practice. Continue reading to find out the reasons why roof-overs aren’t ideal.
At first glance, a roof-over appears less expensive than a complete tear-off. However, this method can lead to hidden costs down the line. The added weight of a second layer of shingles can strain the roof, potentially causing issues in the framing and foundation. This could also lead to significant expenses in the event foundation damage occurs. These costs could far exceed price of a full roof replacement.
One of the primary issues with roof-overs is the difficulty in inspecting the condition of the underlying shingles and decking. When new shingles are placed on top of existing ones, signs of rot, moisture damage, or insect infestation are easily concealed. Failure to address these issues can lead to severe damage over time as well as health and safety risks.
Adding a new layer to an existing roof may sound like it would extend the roof’s lifespan. However, the reality is often the contrary. The added layer can trap heat, leading to the accelerated wear of both the new and old shingles. This reduced lifespan ultimately negates any initial savings you may have gotten by avoiding roof replacement.
Manufacturers design shingles for installation on clean, flat surfaces. A roof-over compromises this setup, potentially voiding the manufacturer’s warranty on the shingles. Moreover, local building codes may have specific regulations that a roof-over could violate.
A roof-over can weaken your property’s value, a crucial consideration if you’re thinking of selling in the future. Prospective buyers and home inspectors recognize the potential issues hidden beneath the extra layer of shingles. This can affect your home’s marketability and sale price.
WaynCo Roofing, LLC understands the importance of proper roof installation. With our expertise and commitment to quality work, you can avoid the pitfalls of a roof-over, ensuring your home remains a safe and valuable asset for years to come. Interested in metal roofing? We can give you an estimate on metal roof cost. Call us at (704) 814-9566 or complete our contact form to schedule a consultation.
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