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2. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   A shingle is the generic term for an individual roofing unit that is applied with other such units in an overlapping fashion. [2] Wood shingle, shingles sawn from bolts of wood such as red cedar which has a useful performance life expectancy of up to 30 years. However, young growth red cedar has a short life expectancy and high cost.

3. Asphalt shingle - Wikipedia

   en.wikipedia.org/wiki/Asphalt_shingle

   While more expensive to install, they come with longer manufacturer's warranties, sometimes up to 50 years - typically prorated, as virtually all asphalt shingle roofs are replaced before such an expiration could be reached. While three-tab shingles typically need to be replaced after 15–18 years, Dimensional typically last 24–30 years.

4. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   Felt paper is available in several grades, the most common being Type 1—commonly called 15-pound (15#) or No. 15 (#15)—and Type 2—commonly called 30-pound (30#) or No. 30 (#30). The weight designations originated with organic base felt weighing 15 or 30 pounds per 100 sq. ft. (6.8 kg or 14 kg per 9.3 m 2 ).

5. Roof - Wikipedia

   en.wikipedia.org/wiki/Roof

   The 20th century saw the manufacture of composition asphalt shingles which can last from a thin 20-year shingle to the thickest which are limited lifetime shingles, the cost depending on the thickness and durability of the shingle. When a layer of shingles wears out, they are usually stripped, along with the underlay and roofing nails, allowing ...

6. Average rate on a 30-year U.S. mortgage hits 6.91% ... - AOL

   www.aol.com/average-rate-30-u-mortgage-171537608...

   The uptick in the cost of home loans reflects a rise in the bond yields that lenders use as a guide to price mortgages. The benchmark 30-year fixed rate loan rate rose to 6.91% from 6.85% last ...

7. GAF Materials Corporation - Wikipedia

   en.wikipedia.org/wiki/GAF_Materials_Corporation

   GAF is an American manufacturing company based in Parsippany, New Jersey. [1] Operating as a subsidiary of Standard Industries, GAF is the leading roofing and waterproofing manufacturer in North America, with 30 locations across the U.S. GAF produces both commercial and residential roofing products, as well as pavement coatings.