How Do White Roofs Reduce Smog

Volunteers have taken white paint to nearly 7 million square feet of tar roofs in the city though that is still only about 1 percent of the potential roof area.

How do white roofs reduce smog.

We can also evaluate your roof and provide you with a complimentary estimate on the same day. Black roofing is also responsible for heating our waterways. Lawrence berkeley estimates that installing so called cool roofs and cool pavement and planting trees over 30 percent of the los angeles basin would lower the average outside temperature by five degrees which would in turn reduce smog by 10 percent. 1 3 these temperature reduction and.

That would reduce la smog as much as a total ban on cars and lorries. A cool roof transfers less heat to the building below so the building stays cooler and uses less energy for air conditioning. This is not just a question of painting things white. There are many small scale initiatives in cities to make roof surfaces more reflective.

Known simply as cool roofing this process is designed to reduce the solar radiation. In urban areas white roofs also help lower smog levels by lowering local temperatures which tend to be higher due to the large proportion of paved surfaces. How do they work. Recently launched by the 3m smog reducing granules nitrogen oxides or nox using roofing shingles.

Roofs and roads are routinely repaired and replaced and. 1 2 in addition green roofs can reduce building energy use by 0 7 compared to conventional roofs reducing peak electricity demand and leading to an annual savings of 0 23 per square foot of the roof s surface. Cool roofs can reduce air temperatures inside. Green roof temperatures can be 30 40 f lower than those of conventional roofs and can reduce city wide ambient temperatures by up to 5 f.

By lowering energy use cool roofs decrease the production of associated air pollution and greenhouse gas emissions. The study concludes by stating that the rate of smog formation increases exponentially with temperature and that making the switch to white roofing would reduce smog by 10 percent in urban areas which is the equivalent of removing three to five million cars from the roads. Pro roofing nw can have one of our mobile showrooms stop by so you can see our wide selection of malarkey roofing shingles in kirkland. Improved human health and comfort.

Reduced air pollution and greenhouse gas emissions. Critics have suggested white roofs do.