Flat Green Roof Extension

A green roof is a great way to create an attractive design feature on an outbuilding like a shed or garage or transform your home.

Flat green roof extension.

Used over a whole roof a green roof will be the single overriding design influence on the house as well as impacting on the construction right down to the foundations. Extensive green roofs are a surface treatment for rooftops typically less than 6 inches in depth involving the addition of growth media and plants to create a sustainable green space on a flat or nearly flat roof. They also deliver a whole range of benefits. Residential green roofs such as theirs protect natural waterways from oily street residue by lessening the chances that municipal storm drain systems will overflow.

Supplied as a complete system this type of roof can be built using a only 50mm soil base and lightweight construction. However vegetation for this type of roof is limited to sedum grasses and mosses contained within a sedum blanket. Extensive green roof advocates have claimed numerous benefits including improved air quality stormwater attenuation reduction of the heat island effect extended roof life and aesthetic value. Flat or gently sloping roofs are most accommodating for green roofs but roofs with as much as a 40 slope can support vegetation with appropriate engineering and soil retention devices.

It replaces the ecology the new house sits upon thereby replacing the habitat that a house takes away. There are two main types of green roof. Planted with hundreds of low growing succulents the little flat roofed extension off their 1925 colonial revival helps slow down and filter rainwater runoff.