Facts Speak Well For Metal Roofing
Why has metal roofing has become a serious rival to traditional roofing materials? Metal roofing has become popular in the Houston TX area because of its high resistance to inclement weather and its long term durability. Most types of metal roofing have a coating of various alloys. Almost all metal roof contractors Houston recommend using a coated metal. These alloys can lengthen the useful life of the roofing from 20 to 100 years depending on weather and type of alloy.
What Are the Protective Coatings Used for Metal Roofing?
They are conventional or dull polyester, PVDF (polyvinylidene fluoride), plastisol, pural and zinc-aluminum alloy. Polyester is the most popular and cheap covering, but it has a low resistance to scratches. Dull polyester is thicker than its conventional analog and has better resistance to rust and weather effect. Standard polyester is 25 micron, while dull polyester is 35 micron. PVDF is as thick as both above mentioned protective coverings, but it has excellent resistance to chemicals, rust, fading and inclement weather. Zinc-aluminum alloy is as thick as conventional polyester, and it is of better quality. And at last, plastisol is the thickest protective covering of all (up to 250 microns). It is resistant to low temperatures, rust, and scratches, but its resistance to temperature drops leaves something to be desired.
Durability of The Various Meta Roofing Materials
All types of metal roofing are durable, but each of them has its peculiarities. Copper roofing is the most long-wearing (more than 100 years), but its color affected by time and the weather.
Galvanized steel’s durability is highly dependent on the type of protective coating. Roofing steel covered with zinc-aluminum alloy is more resistant to weathering than galvanized steel. As for the aluminum roofing, its durability is about 40 years. Many Houston metal roof contractors recommend Aluminum roofing for use in coastal areas like Galveston that have a high grade of salt concentration in the air.
Facts about Metal Roofing Construction
In fact, this information concerns not only metal roofing. If you decided to install metal roofing and cannot decide what construction to choose, this article may be helpful. Let’s start with the rectangular hip roof. As a rule, its faces are on the square and symmetric about the central line. The overhang at the wall protects the wall and the eaves from the inclement weather. Wide eaves make it possible to keep the walls of the house cool. Metal roofing itself reflects heat. Combined with such construction the metal roof considerably reduces energy bills.
Other Types Of Roofs
There is one more type of the hip roof which has extra faces because of the walls different positions. These additional faces produce so-called valleys. At the top, there is a level section which is known as a ridge. The hips sitting on the external corner bound the hip ends and reach the ridge. Such construction may have some problems with leaks; This is not a good situation for metal roofing without protective coating. The next type is a gable roof. It seems to be better than the previous hip roof, but it does not protect the walls as well. That’s because the gable’s overhang size is usually half as much as the eaves of the hip roof. For example, if the typical eaves are 1000 inches, the gable is 500 inches. But the gable roof does provide more space under the ceiling. Now, let us talk about the shed roof. This construction is rather easy and has a slope angle which makes it possible the owner of the metal roofing to forget about problems associated with snow and rain. On the other hand, the owners of the building who decided to install such roof may have difficulties with the ceiling hei