Being a âSettlementâ currency is not quite the same as being a âReserve Currencyâ like the dollar, but it a major step in that direction. It is, in fact, a very large step. Which currency large international trades are done in matters.
There are approximately 33.33 square feet in a bundle of standard composite shingles. A square is a 10-foot by 10-foot area and requires three bundles of shingles for coverage.
There are many different types of shingles on the market. The standard 3-tab Owens Corning Classic 20 year shingle weighs approximately 66 pounds per bundle. There are 22 shingles per bundle, and it takes 3 bundles to cover one square of roof (100 square feet). The Berkshire series put out by Owens Corning averages about 360 pounds per square, has nine shingles per bundle, and there are 5 bundles to the square.