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Single coverage thicknesses range from 55 to 90 pounds per square (100 sq. ft.) for single-coverage; Double coverage range from 110 to 140 pounds per square. [4] Fibre content: mixed rag fibre - lowest cost, shortest life; all plastic fibres; fibreglass - longest lived; Bitumen: bitumen - stiffens & hardens in winter, cracks in time
Area density typically ranges from 1.8 to 2.3 pounds per square foot (8.8–11.2 kg/m 2). Fiberglass shingles gradually began to replace organic felt shingles, and by 1982 overtook them in use. Widespread hurricane damage in Florida during the 1990s prompted the industry to adhere to a 1700-gram tear value on finished asphalt shingles ...
A simple rafter roof consists of rafters that the rafter foot rest on ... due to lower installation costs. Asphalt shingles dominate ... per 150 sq ft (14 m 2) (1 ...
Otta seal is considered to be a low cost seal. With its low initial cost and less demanding maintenance, it is a very cheap alternative for road surfaces. The cost for a double layer Otta seal is about US $2.00 to US $2.70 per square meter (US $2.40 to US $3.25 per square yard) and will last from 8 to 15 years.
Chip seal products can be installed over gravel roads to eliminate the cost of grading, road roughness, dust, mud, and the cost of adding gravel lost from grading. Adding chip seal over gravel is about 25% of the price of resurfacing with asphalt, $170,000 for a 4-mile project done in Minnesota [6] compared to $760,000 had it been redone with ...
A study by Ducker International in 2005 identified the average cost per year of a metal roof to be US$3.2 per square metre ($0.30/sq ft) while single-ply roofs stood at $6.1/m 2 ($0.57/sq ft) and built-up roofing at $4.0/m 2 ($0.37/sq ft).
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By the end of 2006, the cost had doubled to approximately $320 per ton, and then it almost doubled again in 2012 to approximately $610 per ton." [ 21 ] The report indicates that an "average" 1-mile (1.6-kilometer)-long, four-lane highway would include "300 tons of asphalt," which, "in 2002 would have cost around $48,000.