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Advantages and Disadvantages of Metal Roofs on Commercial Buildings

Metal rooftops are not recent innovation in the roofing industry. According to some information, they were used in the Middle Ages to cover the churches. Of course, with the advancement of technology and science, today we have high quality and very durable materials that replaced classic roof tiles. Check here how things in roofing industry have changed over the years.

Apart from functionality, metal roof covers are modern and give a touch of elegance to the object. A quality roof system can add value to your facility. The choice of colors and models is large, but the installation of these systems can be complicated. Also, metal roofs can’t suit every object. Besides numerous advantages, metal roofs have some disadvantages that we’ll mention.

Longevity and Durability

Most modern metal roof systems are made of steel, but you can find different materials on the market, such as aluminum, titanium, copper, etc. Roof coverings of steel, whether in the form of a plate or a single tile, are reinforced with a layer of zinc. It provides extra resistance of roof to weather conditions.

Unlike tiles, metal roofs are more resistant to water because they do not absorb it. Due to the structure of the material and the inclination of the roof, water won’t stay on it. If the roof is flat, it is also simple to remove the standing water. Metal roofs are often strengthened to withstand strong winds and storms.

Aluminum and titanium are the ultimate roofing materials. Both are very light, flexible, and not prone to corrosion. Their lifespan is significantly longer than in regular steel roof, but they are expensive and require specific maintenance.

Long-Term Warranty

The legal guarantee which metal roof manufacturers give on their products depends on many things. It usually refers to a period of two to three decades. The material from which the roof is made has its properties; however, many factors affect the durability of the roof structure, such as weather conditions, the environment of the object, the method of installation, and even the type of business carried out inside the building. Some experiments proved that even the color of the metal roof affects its durability. Brighter colors have longer persistence than darker ones.

Environmental Friendly

Unlike ordinary shingle, metal roofs have a significant share of recycled materials. If you ever need commercial building repair or replacement of your roof, you can recycle the old plates once when their lifespan expires.

Installation of these roofs brings significant savings in your heating and electricity bills. In extremely hot areas, the metal roofs of bright colors reflect light and heat, which contributes to not getting too hot inside the building.

Higher Costs as Main Disadvantage

Higher sales price reflects the expenses of production of metal roofs, which is complicated and demanding. Customers usually cite the initial costs in buying, installation, and maintenance of metal roofs as the biggest cons for these roof coverings. But with the advancement of technology and the discovery of new materials for covering buildings, there’s hope that the price of metal roofs will decrease.

Keeping the Inner Moisture

A tile has one significant advantage over metal roofs – it can ‘breathe.’ This means that moisture from the inside can pass through it and get out. Metal roofs ‘trap’ moisture and other vapors that come from the building.

As the steam can’t come out, it stays at the ceiling. It turns into water drops when the roof cools down. That way, the moisture accumulates on the walls, and this further can lead to the appearance of mold, corrosion, etc. The solution can be ventilation and thermal insulation of the roof.

Also, good isolation can save you from another problem – noise. Unfortunately, metal roofs have poor acoustic features. When it’s windy, stormy or rainy outside, metal roofs are pretty ‘loud,’ because of the stiffness of the material.

Until recently, the use of metal roofs was limited to industrial facilities. Gradually, people perceive their functionality, and they started to put them on commercial buildings – malls, business complexes, but also on houses. As humanity is going green more and more, the use of metal roofs is becoming more popular.

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