Slate or Asphalt Shingles? Damaged roofs cost a lot to repair, considering the additional cost from lost utilities and other associated damages. Knowing the condition of your roof is very important in maintaining a roof in good condition. If you don’t know when the roof on your house was installed, you don’t know how long your roof will last in its present condition. You need to know what roofing materials were used on your roof, the dimensions, the method of installation in order to get a good gauge of when you may need to have it repaired or replaced. You will observe that the roofs of residential houses are generally slanted more sharply to the ground. Commercial and industrial buildings have roofs that are more or less flat.
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Roofs in residential houses are usually made of asphalt shingles, but some still use glass, aluminum, straw, or concrete. You might consider slate shingles because it is top of the line in roofing materials, but remember that it would cost you an arm and a leg. Slate shingles may be enormously expensive, but they have a reputation of lasting hundreds of years.
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Spending twice as much for a roof is no longer a priority with modern day families. This is the reason why the popularity of asphalt as the roofing material of choice increased, because of slate shingles’ limitations. 100 years may be too long for a roof to last, but the 50 years that an asphalt roof can give you is worth obtaining for your house. Patching and repair work done on asphalt roofs are also cheaper than on slate roofs. You can find asphalt shingles in three grades: 30-, 40-, and 50-year dimensional. Considering the same styles of shingles, the 50-year dimensional grade is definitely more expensive than both the 30- and 4-year dimensional. On top of the life expectancy that the different grades the asphalt shingles can give you, there is the difference in the quality of their aesthetics. A 50-year dimension gives a more elegant look compared to a 30- or 40-year dimension. A 30-year shingle that is correctly installed will last about 25 years without any need of major repair. 30-year shingles are not made as thick as 40- or 50-year shingles, and not with as much asphalt. A 40-year shingle will give you 30 years of good use before needing any major repair or replacement. The 40-year dimension contains more than 60% asphalt compared to the 30-year and is therefore cheaper per unit price and durability. The 50-year shingle gives you the same degree of durability than the 40-year shingle, about 30 years. 50-year dimensions are made with more asphalt, not for more durability, but for better aesthetic look.