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The answer is yes, you can lay new roof shingles over old ones. But before we get started, one thing must be clear: adding new roofing over old (sometimes called a "re-roof") is possible only with asphalt shingles (also called "composition shingles").

Tile and Asphalt are the most used materials for roofing, and they're manufactured with the usage of concrete, clay or oil. The rise of oil prices can directly impacted asphalt shingles to become more costly. Furthermore, the cost of disposing old and damaged materials has also increased in the recent years.

Cast aluminum is very brittle and when broken, the inside will appear very grainy. A majority of the cast aluminum that comes across our scale is from auto parts. Transmission housings, engine cylinder heads, and electronic covers are all examples of cast aluminum auto parts. Other miscellaneous items that are made of cast aluminum include BBQ cove

Most experts agree that a typical roof will last between 20 and 25 years. It also depends on whether the old roof was removed and you only have one layer of shingles, and if it is properly ventilated.

The bottom of an aluminium can is much more shiny than a steel can bottom. The best way to tell the difference is to use a magnet on the side of the can. If it is magnetic, then it is a steel can. Do not test the top of the can as all cans have an aluminium top and tab. Another way to identify an aluminium can is to look out for the aluminium recyc

The common types of Aluminum Scrap are Sheet Aluminum, Cast Aluminum, Dirty Aluminum, Aluminum Cans, Aluminum Gutters/Siding, Aluminum Wire & Aluminum Rims.