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Modern Flat Roof Design: HOW to get a perfect exterior look

The modern design of the house is not only limited to the interior, he also cares about changing the exterior of the house and how to improve it

learn more about Modern Flat Roof Design, Why use flat roofs? and what is Modern Flat Roof Design material

Content

Why do modern houses use flat roofs?

With the advent of modern home design, consumers and installers have demanded more energy-efficient and inexpensive roofing systems, which is why flat roof systems have become so popular.

How good is Modern Flat Roof Design?

Flat roofs are long-lasting: A flat roof is an ideal solution if you care about sustainability.

A flat roof has water resistance; this means you don’t have to worry about water damage. 

If you use a flat concrete rooftop, you use a roof system that resists strong winds.

Reduced building and repair costs: Flat roofs occupy less space and use less material than sloping roofs. 

It makes the initial construction less expensive and savings in the event of major repairs. Multi-purpose.

What to consider when you want to get a modern flat roof design

Cost: How much is your plan to spend? And will it be sufficient to invest in an option with a longer life?

Weather: will the roof be prone to heavy rainfall, cold temperatures, or sunshine?

Chronology: How fast are you trying to install the roof? 

Setup: will you install it yourself, or is it going to be done by a contractor?

Modern Flat Roof Design material options

Built-Up Roofing, or BUR

Built-Up Roofing

It appeared in the middle of the 1800s.

They are built by applying multiple layers of molten tar and gravel on top to create a waterproof joint.

It is considered one of the most commonly used materials for flat roofs and has been in use for over a hundred years.

Pros:

  • Strong
  • Provides excellent insulation
  • Manageable
  • Life expectancy is at least ten years but may last up to 20 years.

Cons:

  • Installation may take a while due to how many layers needs to be created.
  • The installation can be disorderly and can emit unpleasant odors.
  • Very heavy construction might mean it must reinforce the roof to bear the weight.
  • Can be costly to set up.
  • It is not recommended that you live on the property while installing

Modified Bitumen Flat Roof

Modified Bitumen Flat Roof

Modified bitumen is a single-layer roofing material offered in sheets fabricated from bitumen, a product obtained through the distillation of crude petroleum blended with sand or crushed limestone. 

For the set up of a flat modified bitumen roof, Sheets are heated with a blowtorch or heat pistol and set up with a roller, with heat permitting the material to adhere to the roof’s surface. 

It can also serve as a sub-layer under slate or tile roofs while adding a layer of sand or gravel above to improve its appearance.

Pros:

  • A reasonably inexpensive option
  • Fast and easy to implement
  • Easily repaired
  • High reflectivity index, keeping the roof surface colder in the sun

Cons:

  • Unsuitable for heavy pedestrian traffic
  • Susceptible to tearing
  • Since heat must be directed directly to the roof surface, the installation can be hazardous if not carried out correctly.
  • Bitumen is a potentially dangerous substance

Ethylene Propylene Diene Monomer or (EPDM)

Ethylene Propylene Diene Monomer or (EPDM)

It is an artificial material made from recycled rubber, making it an ecological choice. 

It is installed by connecting the bands with an adhesive which means all the harmful/toxic chemicals that get released when heat application from other materials such as bitumen is prevented.

Pros:

  • Proven to last more than 50 years.
  • Environmentally Friendly Choice – placed first in the classification of low-impact membranes by the Global Environmental Agency Greenpeace.
  • Provides excellent isolation
  • Strong resistance to UV and infrared light.
  • Do not blister, crack or rot.
  • Flexibility develops and shrinks with the weather.
  • Easy to repair

Cons:

  • The installation requires dry conditions.
  • The setup process may require professional intervention on roofs with skylights, fireplaces, and vents.
  • Leaks may happen if they are not installed correctly.

PVC

PVC

PVC is a material that combines ethylene and chlorine for the production of ethylene dichloride (EDC).

That is subsequently converted into vinyl chloride monomer (VCM), polymerized with vinyl resin, and blended for durability and flexibility. 

The PVC cover is installed using a thermal gun to ensure the joints’ strength and that the material resists leakage and wind.

 It is then bonded to the rooftop using an adhesive, high tensile screws, or a weighted roofing system.

Pros:

  • Robust and durable – heat-welded joints will last a long time, but applying heat is unsafe.
  • A lifetime of about 20 years.
  • Polluting resistant
  • Windproof

Cons:

  • Releases toxins to the environment as they are manufactured and disposed of.
  • Additives that help with flexibility can decompose and cause problems after 20 years.
  • It can be a tricky setup.

Glass Reinforced Plastic or (GRP)

Glass Reinforced Plastic or (GRP)

GRP Comprises polyester resin and cut-strand matte fiberglass, blended to form a stratified. 

Pros:

  • Good moisture resistance, so well suited for wetter/damper conditions.
  • Provides excellent insulation.
  • No splits or seams.
  • Long-lasting
  • Leak proof
  • Thin

Cons:

May be loud in the rain, something to consider if you extend your living space.

  • Among the highest-priced choices for a flat roof.
  • Inflexible, if humidity is trapped beneath the membrane, it can cause blisters.
  • May only be set up under dry and mild conditions.
  • Won’t get better if set up in cold weather.
  • It is not thought to be the best option for bigger roofs.

Which type of Modern Flat Roof Design is best?

EPDM Membranes

 The finest flat roof membrane, Ethylene Propylene Diene Monomer, is a relatively inexpensive flat roof material with many important benefits.

Clean and simple installation, amazing strength, long service life, and an elegant finish combine to make Ethylene Propylene Diene Monomer membranes a hard-to-beat.

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