Green Roofs Or White Roofs

Green roofs are also known as vegetative or eco roofs.

Green roofs or white roofs.

A green roof also known as a rooftop garden or a living roof is a vegetative layer grown on a rooftop. Metal roofs generally can run from 120 to 900 per 100. When selecting a roof there are many different options for roofing contractors including thermoplastic epdm metal shingles greens roofs and more. A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof.

Green roofs also provide insulation lower the need for heating and cooling and can reduce the. By absorbing less sunlight than either green or black roofs white roofs offset a portion of the warming effect from greenhouse gas emissions. It has become a leed leadership in energy and environmental design standard of the u s. Commonly referred to as cool roofing it has received a stamp of approval from the state of california which has adopted its use in its building codes.

Green roofs are ideal for urban buildings with flat or shallow pit roofs and can include anything from basic plant cover to a garden. White or reflective roofs have been in use for the past 15 years. They fall into three main categories extensive intensive and semi intensive. Cool roofs reflect sunlight and heat back into the atmosphere while green roofs help absorb the sunlight.

While each of these possesses its own advantages and disadvantages cool roofs and green roofs present facility owners with great options. Though you ll get more life out of a metal roof you ll pay the price at the time of installation. White roofs are more reflective than green roofs reflecting roughly three times more sunlight back into the atmosphere and therefore absorbing less sunlight at earth s surface. Green roofs for healthy cities enroll now living architecture is the result of the integration of organic and non organic systems in on and around buildings such as green roofs walls and many other forms of green infrastructure.

Green roofs typically contain a layered system of roofing that is designed to support plant growth and retain water for plant uptake while preventing ponding on the roof surface. Shingle roofs are cheaper up front. Green building council and has been mandated by government officials in chicago new york seattle and philadelphia. The primary reasons for using this type of roof include managing storm water and enjoying a rooftop open space.

The roofs are designed so that water drains vertically through the media and then horizontally along a waterproofing layer towards the outlet.