flat roof material

flat roof material

There are various designs, styles and shapes of roofs options which you can accommodate according to the need of structure covering your area. Protection is the primary need which mainly demands from the structure of a roof but when it comes to cover the flat roofs then you have both limited and expensive option. You have few quite roofing material options for flat roofs.

The flat roof is quite familiar now a day’s in the area where little rainfall or snowfalls and industrial buildings which have wide roof span. Places like a mall, warehouse, apartment, school buildings, industrial buildings, commercial and intuitional buildings, homes are usually features of a flat roof.

You might be searching on internet types of roofing materials for flat roofs here you will find the correct information of roofing material options. Flat roofs are easy to install even at large area or space as compare to others.

Fortunately, there are different types of roofing materials alternatives for your flat rooftop as compare to the earlier traditional hot-mopped built-up roofing; this will expand the reliability of your flat roof.

Let’s survey on the most well-known types of roofing materials for flat roof accessible for your home:

Built-up Roofing

It is also known by TAR &GRAVEL. Built up roofing solves the low pitch roof problems as includes the multilayer of ply sheets which are bonded together by applying hot asphalt. The top layer of the built-up roof is a reflective coating for energy efficiency or gravel which adds durability.

Built up roof includes up to four layers or all the more comprising of substituting layers of bitumen (asphalt at the top, coal tar, or other glue or adhesive) with a garnish total layer of rock or different materials.

The hot black coal tar pitch mixes with the bitumen-doused rooftop and makes a solid rooftop film. The rooftop felt/black-top tar layering is rehashed in covering layers until the point they become two to four plies in thickness.

  • Pros: GRAVEL is known as the fantastic fire retardant. It is attractive for windows and decks that neglect the rooftop. It’s the least expensive from the other flat roof materials.
  • Cons: irresistible, intense and heavy in weight.

Modified Bitumen

Modified bitumen is the advanced and replaced technology of Built-up roofing, this cap sheet roofing developed in 1960. This roofing material option uses a single layer of adhesive roofing material; a base layer is mechanically attached to the roof deck with the plates or bars. The overlapping of ply can be sealed by using the permanent adhesive applying with the base layer.

The top surface is made of granule which has aesthetic and energy efficient property. A single-ply rolled modified bitumen roof can be installed in many techniques, let’s see what methods can be used to install this roofing material for the fat roof:

  • Hot Applied
  • Torch Applied
  • Cold Applied
  • Self-Adhered

Earlier modified bitumen roofing was installed by using torch down system and hot applied which is a fire hazard and can only be installed by professionals but now self-adhered option is available which is easy to install and feasible for DIY(Do it yourself).

  • Pros: It is lighter in color which reflects the infrared energy of the sun and reduces facility HVAC costs.
  • Cons: Modified bitumen is not as durable and resistant to foot traffic.

PVC Single-Ply Membrane

It is the most popular flat roofing material. PVC Single-Ply membranes are a single layer of thermoplastic material and are ideal for domestic, commercial and industrial flat roofs. PVC creases are warm welded (hot air welded) to shape a watertight bond. The welded creases are really more grounded than the material itself! Most PVC layers, particularly white-shaded ones are exceptionally vitality effective, on the grounds that they reflect the solar heat energy instead of absorbing it.

Most of the PVC layers are exceptionally adaptable and can be easily and effectively redone to oblige in rooftop variances. PVC Single-Ply Membrane material frameworks are specially crafted (pre-assembled) to fit each building. Customization can lessen the potential for scrap and waste at the activity site. They come with the lifetime warranty for both residential and commercial PVC installations.

PVC is profoundly impervious to generally synthetic compounds. PVC layers give long haul benefit in the brutal conditions experienced on housetops. A more drawn out enduring rooftop implies less incessant rooftop substitutions over the life of a building. A building enduring 100 years may experience eight to ten non-PVC rooftop frameworks, however PVC rooftops just three to four.

PVC is innately fired safely. PVC layers won’t maintain a fire when the fire source is expelled. High fire opposition can make it less demanding for PVC material frameworks to accomplish Class-A fire evaluations than for other material frameworks. Burning, particularly fragmented ignition is a wellspring of numerous natural poisons. A rooftop layer that does not consume is more outlandish than a combustible roofing material to emanate conceivably hurtful substances.

  • Pros: PVC flat roof material is strong, flexible, durable and energy sufficient; it reflects the solar energy instead of absorbing it. It is inherently flame resistant.
  • Cons: It can be installed by a mechanically attached system. It is very expensive so it may cost you high installing in large area.

Rubber Membrane

The rubber Membrane rooftop is known as EPDM (ethylene propylene diene terpolymer). This rubber membrane is popular from historical time. Holes in rubber Membrane film rooftops can be repaired easily and repair materials are ease. They are moderately light weighted and are sturdier than more seasoned level rooftop frameworks like BUR and Modified however it can be less strong than current PVC films. The light shade color of rubber rooftops makes them inclined to retaining heat and in a few conditions, may require light-hued rooftop coatings, which will build the cost of establishment. Frequently the visual appearance of the dark elastic rooftop is referred to as its greatest derogation.

  • Pros: Easy to install, the homeowner can install itself. Its material is light in weight and highly resistant to scuffs and tears. Leaks are easy to repair.
  • Cons: Rubber Membrane rooftop has the tendency to absorb heat, which derive the house temperature and increase-up the utility bill of the homeowner.


TPO is also a type of roofing material with single ply roofing membrane; it chemically bonds with rubber, ethylene, and propylene as well as some other filler materials. It is introduced in the 1990’s and from then they are vastly growing in popularity. TPO is an energy efficient membrane, but the new technology of TPO requires the experienced contractors in installing it.

Metal Roofing

Steel or Aluminium are commonly utilized as rooftop materials nowadays. One of the greatest offerings focuses on is metal’s lifespan. Most metal rooftops are light weighted, and simple to introduce over existing materials. They are amazing warmth conductors and perfect for Northern states where winter months can keep going for up to 4-5 months.

They are additionally perfect for zones of high snow and precipitation on the grounds that the rooftop boards bolt together and keep away water or snow from entering into the building. Metal rooftops are normally practical for slanted or low-inclined rooftop applications and can’t be utilized at completely level rooftops. The critical cost and commotion of a metal rooftop can likewise be an issue.

  • Pros: Metal roofing materials are best suited for the slanted or low-inclined rooftop.
  • Cons: Not good for the level rooftop. Experts do not recommend metal roofing for flat roof best work in slant roofs. It creates a lot of noise at the time of rain.


In this article, you will find a proper guidance and information about flat roofing material which will help you to accommodate your flat roof with informed decision. After reading this article of roofing material checklist you can decide which flat roof material is best suited for your rooftop and you can easily make your decision that which roof material you need to install on your rooftop.

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