Asphalt Shingle RecyclingSubmitted by dfrankl on Tue, 07/06/2010 - 12:40
I recently attended a workshop at Iowa State University focused on recycling asphalt shingles. The workshop focused on the logistics of diverting old asphalt shingles from landfills so that they can eventually become a key ingredient in our roadways. I found this to be exciting news as asphalt shingles are landfilled each year at a rate of more than 10 million tons.
The process is not exactly turn-key, however, many states have used recycled asphalt shingles (RAS) in there Hot Mix Aspalt paving spec for several years. This is good news for Iowa (no need to re-invent the wheel), and for those of us who would like to reduce our impact on the environment. The Iowa DOT recently drafted a paving spec that would allow up to 5% of the Asphalt Paving Mixture to be RAS. I also learned that the state consumes about 5 million tons of asphalt paving each year. At 5%, the math comes out to 250,000 tons of RAS.
Gannon Roofing Supply is an advocate for asphalt shingle recycling, and if interested, can direct you to the closest recycler to you. If located in or near Cedar Rapids, torn off shingles can be brought to our facility where we currently have a tenent recyling shingles (R2R Recycling).