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2. How Much Does it Cost to Replace a Roof? - AOL

   www.aol.com/much-does-cost-replace-roof...

   Basic asphalt shingles cost between $2,000 and $4,000 for the material alone, ... This part of the project typically costs $1 to $5 per square foot or an average of $1,000 to $1,500.

3. Asphalt roll roofing - Wikipedia

   en.wikipedia.org/wiki/Asphalt_roll_roofing

   Asphalt shingles did not come into general use until about 1911. During 1939, thirty-two manufacturers, representing about 95 percent of the asphalt-prepared roofing industry, produced 34,225,187 squares ^ of prepared roofing. Almost one third of this, 11,173,856 squares, was in the form of asphalt shingles, which are used principally for ...

4. Asphalt shingle - Wikipedia

   en.wikipedia.org/wiki/Asphalt_shingle

   Per 2003 International Building Code Sections 1507.2.1 and 1507.2.2, asphalt shingles shall only be used on roof slopes of two units vertical in 12 units horizontal (17% slope) or greater. Asphalt shingles shall be fastened to solidly sheathed decks. Shallower slopes require asphalt rolled roofing, or other roofing treatment.

5. Domestic roof construction - Wikipedia

   en.wikipedia.org/wiki/Domestic_roof_construction

   Building codes in the U.S. specify ventilation rates as a minimum of 1 sq ft (0.093 m 2) of opening per 150 sq ft (14 m 2) (1:150) with a ratio of 1:300 in some conditions. [8] Warm air rises, so ceiling insulation is designed to have a higher r-value and the insulation is often installed between the ceiling joists or rafters.

6. How Much Does It Cost To Build a House? - AOL

   www.aol.com/much-does-cost-build-house-210010797...

   Cost Per Square Foot: $120 to $500. It shouldn’t surprise you that the more you build, the more expensive it will be. ... Painting a home exterior cost: $1,800 to $4,400. Roofing installation ...

7. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   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). However, modern base felts are made of lighter-weight fibre, so the weight designations, though common colloquially, are no longer literally accurate. [2]