Best roofers near Tiskilwa, IL

You shouldn’t put a new roof underlayment over an old one for a few reasons. Old felt must be removed in order to assess the condition of your roof decking, such as rotting wood or other structural issues. Also, if your roofer doesn't install a fresh layer of felt as is required by shingle manufacturers, your warranty may be voided. Finally, old underlayment removal is often included in the cost of roof repair or replacement, so there's no real benefit to leaving it on before installing a new layer.

During the framing process, builders connect the roof to the walls with materials, including metal connectors, plywood panels, and wood blocks. These roof-to-wall connections are important and provide weatherproofing, noise and temperature insulation, protection against pests, and home integrity. The type of connector and method used will vary, depending on your home’s construction and needs, and each has pros and cons in terms of cost, noise insulation, longevity, and reliability. Talk with your home or roofing contractor about the best connectors for your roof and walls, and what they recommend for your home.

You can only overlay a roof once. Any additional layers of shingles will add too much weight and may also violate building codes. Once your roof has had an overlay, you’ll need to have a full roof replacement, including a tear-off of all existing roofing materials, when it’s time for a new roof. 

The lifespan of asphalt shingles is typically between 15 and 30 years, depending on the type of shingle and other factors. Standard 3-tab shingles have the shortest lifespan, around 10 to 15 years. Architectural shingles last longer, averaging 20 to 25 years. Luxury or designer asphalt shingles are the most durable, with a lifespan of 40 years or more. Climate, installation quality, and regular maintenance also play a significant role in how long your shingles will last. Signs that they need replacement include granule loss, bald spots, and roof leaks.