This post was written in 2013 and blue roof technology has moved on since then though ross still believes taking the water off a roof is the best underlying policy and a blue roof should remain a last resort as this article states here s an update from 2016 and another on best practice from 2018.
Why industrial roofs blue.
These drainage systems carry runoff to sewers so they can be treated and.
Why specify a blue roof.
Because the stormwater attenuation is designed to fit within the footprint of the building this means that the blue roof is ideal for urban and built up environments where ground space is limited.
Voiding of warranty many roof warranties include a clause that any modification will void the roof s warranty so it s a good idea to read the fine print before going blue.
Blue roof why it is a bad idea update.
Don t know why but those seem to be the only colors that material comes in.
To understand why builders have taken to installing blue roofs you need to know a little bit about how storm water runoff is processed by cities.
Blue roofs are constructed on flat or low sloped roofs in urban communities where flooding is a risk due to a lack of permeable surfaces for water to infiltrate or seep back into the ground.
Load capacity like green roofs blue roofs are heavy so some roofs might need to be fortified before adding blue or green features.
In measures to prevent flooding planners are restricting the amount of rainwater leaving a site via the drainage system which can be limited to 5 10 litres per second per.
A green roof also known as a rooftop garden or a living roof is a vegetative layer grown on a rooftop.
Development and expansion of towns and cities has seen exponential use of impervious surfaces causing artificially high rates of rainwater runoff.
Why install a blue roof.
Urban areas currently manage runoff through ground sources like ponds and drainage systems.
A blue roof controls the flow of roof drainage by increasing temporary storage and more slowly releasing rainwater by means of detention which is considered a stormwater management practice smp.
The aluminum sandwich panel buildings they sometimes use here cheap last 10 20 years used for industrial or storage purposes sometimes stores beside the highways all seem to have beige walls and blue roofs.
A bird s eye view of a residential area in yunyan district of guiyang guizhou province.
Blue roofs are suitable for a wide variety of building types including industrial domestic and commercial properties.
Unlike traditional black tar roofs green roofs reduce energy costs by absorbing heat instead of attracting it and.
Blue roofs alone or combined with a second on site water storage system can be utilized to satisfy local municipalities stormwater management.
Last week we delivered a cpd our new riba.