While the city has expanded quickly over the last 30 years, it’s not a bad idea to check the age of your building and compare that to the leading godown roofing method of the time to see if you’re in need of an upgrade.

But when it comes time to repair, update, or replace the roof of your godown roofing construction, what is the best option?

While every roof is different, as a godown roofing contractors in Chennai let’s run through the most common kinds of warehouse roofing and roofing materials out there.

Liquid-Applied Roofing

There are some basic common truths for a lot of roofs that start of their lives as a liquid:

They are custom-fitted roofing solutions because they can be painted on any existing roofing structure or fixture. Liquid materials are also seamless and monolithic. That means it’s one big solid layer of stuff.

Liquid materials fill in cracks, seams or other gaps in the roof, immediately upping the roof’s water resistance. They often don’t need to be reinforced with fabrics. They do need to be applied to an existing roof structure.

Here are a few types of roofing materials that fit in this category.

Silicone coatings are similar to the acrylic coating system, but offer better water resistance to roofs. They are much less likely to fail under standing water. However, they are less durable than acrylic under physical stress.

Acrylic coatings are similar to paints in that they can be delivered to the surface in similar ways—brushes, rollers, and sprayers. Acrylic coatings are best for low-slope roofs that have some positive flow with minor pooling. They also offer superior resistance to foot traffic, impacts, and dust erosion.

Both are problematic from the perspective of installation and labor. These are highly sensitive materials before they mature and most roofers charge premiums for their expertise. Also, weather conditions prohibit installation.

Multi-layer Membranes

Another more common, more affordable option is rolled bitumen. It is not inaccurate to think of these as rolls of shingle-like material. It also uses similar fastening methods as the single-ply membranes. The big difference is that multiple overlapping layers are needed.

Asphalt Shingles

There is a reason asphalt shingles are the most popular roofing system. It’s a flexible system in more ways than one.

We consider three types of shingles— strip shingles, dimensional shingles, and premium shingles—on this web page.

There are two major downsides to this system: length of life and durability under stress. Many shingle roofs see sub-20-year lifetimes. Also, shingles have a bad habit of blowing off or otherwise compromising in bad weather.

Metal Roofing

Metal roofing is the most expensive option for commercial buildings and some kind of slope is a must to get the most out the possible lifespan of metal.

It comes in three basic forms: sheets, tiles, and look-alikes. The look-a-like option just means the metal is designed to look like something else such as a cedar shake.

Zinc roofing is a must for high-stress environments, especially those with high chemical or saline water exposure such as cities, industrial areas or coastal areas. Zinc is also easy to fit roofing specifics. But it is also pricey. That’s why it is often used with other metals.

Steel roofing materials are the most common and most mid-grade price option. It is often coated or mixed with another material to increase some kind of resistance factor for specific uses. Galvanized steel has a zinc coating to increase corrosion resistance; galvalume steel is coated with aluminum to increase reflectivity and corrosion resistance, for example.

Aluminum roofing is a pricier option but more durable. Its price often restricts its use to smaller buildings or sections of commercial buildings. It is a lighter metal for lower-durability roofs or easier installation. It is also easier to work with and is more easily fitted to roof interruptions.