How Hot Does A Green Roof Get

In germany between 40 100 of rainfall can be retained dependent.

How hot does a green roof get.

This is especially pronounced in aging roofs. A well maintained green roof can more than double the number of years before a roof needs to be replaced compared to a standard roof making up for some of the added costs of installation. I have a roof with a 2 12 pitch aka hot mop roofing. Clearly black roofs get the hottest.

It has become common in large cities on high rise apartment buildings so that residents can get fresh vegetables or enjoy blooming flowers. A green roof will typically intercept the first 5mm and more of rainfall providing interception storage. In the summer a green roof can typically retain between 70 80 of the run off. While most are designed to last 20 years or longer black roofs can suffer because heat speeds up the breakdown of materials in fact heat wear and tear is the main issue from a longevity standpoint.

The amount will be dependent on the depth and type of substrate in the green roof system. Beehives on the roof of the chicago city hall help polinate the green roof plants and provide homes for the urban bee population. Why would it be much different with a roof shingle. Metal roofs also get hot.

It layed perfectly flat prior to open cell foam being installed against the underside. Green roofs can also help reduce building energy usage and noise levels while increasing the durability and lifespan of the roof compared to conventional roofs. Green roofs can significantly reduce the amount of rain water that would otherwise run off an impervious roof surface.