Polymer shingles, also known as synthetic or composite shingles, are a popular roofing material, but they may not be the best choice for areas with high summer temperatures. Metal, slate, clay, rubber, and terracotta tiles are all better options for hot climates. Each of these materials has its own advantages and disadvantages, so it's important to consider all of them before making a decision. Terracotta tiles are one of the oldest roofing materials and can last up to 50 years.
They are molded in the shape of a half barrel or an S-curve, which allows for greater air and water circulation and reduces the amount of heat that is trapped in the roof. The main drawback of terracotta tiles is their weight; they can weigh up to four times more than common asphalt or composite shingles. This means that additional structural reinforcements may be needed to support the extra weight. Concrete tiles are a slightly more affordable option than terracotta.
They are built thickly, meaning that it takes longer for the sun to heat up through a concrete slab and reach your home. Like terracotta, concrete tiles can also be formed in semicentral or S-shaped forms, allowing greater air ventilation. Staining concrete a lighter color can also help prevent heat absorption. However, concrete can be heavy, which means that you may have to spend more to support the foundations of the roof, and without painting or staining the concrete shingles, your roof design may not be the most aesthetic. Short for ethylene-propylene-diene monomer, EPDM is a synthetic material similar to rubber.
EPDM is commonly used in commercial roofs and comprises a strong thermoplastic that is effectively resistant to weathering, UV radiation and general wear and tear. Optional roof coatings with titanium dioxide can improve the potential for heat reduction by reflecting heat and sunlight. Since EPDM is generally seamless, it can also help as a barrier against water and air leaks. Unlike the two previous options, EPDM is also lightweight and malleable, allowing for easy installation.
However, EPDM is not as durable; it can be easily damaged by fallen branches, rocks, and other debris.
Metal roofsare becoming increasingly popular in warmer climates due to their generally sustainable nature. Most aluminum, steel and copper roofs are made from recycled materials. Compared to other roofing materials, metal takes longer to heat up, retains less heat, and cools faster at night. Most of the metal roofs that are installed also have a visible space between the roof and the actual metal panels; this space acts as a buffer or barrier that can prevent heat from traveling from the ceiling to the actual living room below. Green or living roofs consist of roofs covered with plants and moss suspended over an impermeable protective membrane (usually EPDM).
The membrane is filled with soil and spreads with a variety of local plants. The naturally cool temperature of the soil and the plant's growth process keep the house cool by preventing heat absorption. During the colder months, a green roof also acts as an effective form of insulation to prevent heat loss. Water runoff from plants can also help cool the building, and plants naturally act as a radiant barrier to the roof foundations, increasing the longevity of the roof. For colder climates, metal roofs are a great option.
The main advantage of this type of cover is its lightness; because the surface is smooth, ice and snow slip immediately, preventing icicles from forming on the surface. They also offer the installation of snow protectors on these types of roofs, which ensures a safe sliding of snow little by little. Metal roofs are a good choice for people who live in hot climates. They have experienced a resurgence in popularity in recent years due to their durability and style. A metal roof forms a thermal barrier by creating an air space between the roof and the roof; this air cushion can help reduce cooling costs, which can save you a lot of money in the long run. When choosing what type of roof will keep your house coolest in hot climates, it's important to consider all your options carefully.
Metal roofs offer great durability and style while terracotta tiles provide long-lasting protection against heat absorption. Concrete tiles are slightly more affordable but may not be as aesthetically pleasing as other options. EPDM is lightweight and malleable but not as durable as other materials. Finally, green roofs offer many benefits but require good planning experience and vision.