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all asphalt roofs can be re-reroofed based on your states laws
basically if you have only one layer of roof on your existing roof you are legal to replace it with a "go over" roof, any more then 2 layers is considered bad due to weight, and can be illegal in some areas/states.
this is Avery good way to save alot of money on a new roof as there is no riping labor or waste fees!!!!
you can save money by roofing over an existing layer of rooing, but make sure they check for any rotten wood that may need to be replaced. Otherwise you'll be spending more money for a roofer to come out and repair both layers.
Just a professional opinion:is always better to remove the old roof and start over.
What else can I help you with?
Are tin roofs better then asphalt roofs?
Metal roof is very expensive and not easy to install.
What are three roofs type?
Wood, asphalt, torch-down
What is the best method for cleaning asphalt shingle roofs using an asphalt shingle cleaner?
The best method for cleaning asphalt shingle roofs using an asphalt shingle cleaner is to follow the manufacturer's instructions carefully, apply the cleaner evenly, scrub gently with a soft-bristled brush, and rinse thoroughly with water.
Metal Roofs are Three Times Costlier Than Traditional Asphalt?
Metal roofs cost about three times the amount of conventional asphalt roofs. Several factors contribute to cost, including higher cost of the materials themselves. The installation process also drives up the cost due to time involved as well as the process, which requires specialized installation technicians. Metal roofs take approximately two to three times longer to install. Although costlier than asphalt roofs, metal roofs are comparable in price to cedar shake and tile roofing. Metal roofs, however, are cooler, producing energy savings that will eventually offset materials and installation costs.
What are roofs in California made of?
In California, roofs are commonly made from a variety of materials, including asphalt shingles, clay or concrete tiles, and metal. Asphalt shingles are popular due to their affordability and ease of installation, while clay and concrete tiles are favored for their durability and aesthetic appeal, particularly in Mediterranean-style architecture. Metal roofs are also gaining popularity for their longevity and energy efficiency. Additionally, some homeowners opt for eco-friendly materials like green roofs or solar panels.
Tip for Installing Asphalt Shingles on Old Roofs vs. New Roofs?
Asphalt shingles are some of the most widely used mediums for roofs as they are generally more inexpensive than other types, and they are easy to work with. Whether you're applying those asphalt shingles to an old roof or a new roof, it's helpful to know that the application process is generally the same for all. The important aspect to remember is that when you are re-roofing, the most important thing to pay attention to is how you begin placing the asphalt shingles at the lower edge. Remember that mimicking the arrangement/pattern of the first roof could cause you to end up with waves in your roof design.
What is the Average life span of asphalt shingle roof?
This is a hard to answer question. Asphalt shingle roofs come in many grades measured in life expectancy, like 10-year, 20-year, 30-year, and 45-year.
How is a built up roof made?
Roofing composed of 3-5 layers of asphalt felt laminated with coal tar, pitch, or asphalt; top is finished with crushed slag or gravel; generally used on flat or low-pitched roofs.
What are the advantages of having a tin roof for one's home?
A metal tin roof has many advantages over an asphalt roof. Metal roofs last longer than other roofs, do not deteriorate as quickly, and can withstand more extreme temperature changes. Tin roofs are also less work to install, and can even lower your insurance costs.
How are asphalt roofing shingles manufactured?
Asphalt roofing shingles are made by coating a fiberglass or organic mat with hot asphalt for waterproofing and strength. Colored mineral granules are applied for UV protection and durability. After cooling, the shingles are cut into specific shapes and sizes. Finally, they are bundled and packaged for distribution, providing long-lasting protection for roofs against weather conditions.
What does not allow precipitation to pass through?
Impermeable surfaces such as concrete, asphalt, and roofs do not allow precipitation to pass through. This can lead to increased surface runoff and potential flooding.
What kinds of materials are used to make roofs of houses?
Wood, slate, metal sheet, asphalt shingle, concrete shingles, rubber membrane, fabric, baked clay tiles.
