There are many types of roofing materials available with a wide range of prices. But regardless of the price, some are much less advisable for use in rainy environments.
Asphalt shingles
Also known as composition shingles. They are not totally waterproof and will not do well unless on a pitch of at least 4 inches for every foot. Expect them to last around 20 or so years.
They are not the best choice for extreme climates. They become soft in hot weather and tend to crack in severe cold. Because of their rough surface, they tend to catch and hold leaves, tree limbs and other debris. However, they are among the least expensive to purchase and maintain.
If you live in a mild climate, they will probably serve you well.
Ceramic tile
Because of their weight, the roof will often need additional support. Though a little bit pricey, ceramic tiles are good looking, especially if you’re trying for a Spanish or Italian effect. Made in a kiln from natural clay, they are brittle and can break easily especially under the weight of wet, heavy snow. But rain, and in a temperate climate, with a minimum of care they can last 50 years or more
Sheet metal
For a sure protection from inclement weather, steel sheet metal roofing may be your best bet. The price is about mid-range when compared to asphalt shingles or ceramic tile, and lifespan is much greater. Coated with aluminum and zinc alloy, they can last well past 50 years. They can be painted any color to match or contrast the attached building
A higher priced version made from zinc and copper can last as long as 100 years. And the variety of choices doesn’t stop there. Titanium and stainless steel are also available for those who seek only the best. Also roofing with special coating can deflect the sun’s heat to provide additional cooling.
Wood shakes or shingles
Wood is not your best choice for wet climates. The quality of the product varies and is prone to splitting and warping even at it’s best.
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