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

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

    Asphalt shingles are the cheapest roofing option for a roof replacement. Basic asphalt shingles cost between $2,000 and $4,000 for the material alone, while premium options such as copper can cost ...

  3. Roof coating - Wikipedia

    en.wikipedia.org/wiki/Roof_coating

    A 35 °C (95 °F) heat reduction was observed on this modified bitumen roof with a white, reflective roof coating. Roof coatings are seamless and when installed correctly, can solve roof leaks on almost any type of roofing material. There are exceptions: "professionals do not recommend using cool coatings over existing shingles.

  4. 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.

  5. Roof pitch - Wikipedia

    en.wikipedia.org/wiki/Roof_pitch

    Roof pitch is the steepness of a roof expressed as a ratio of inch(es) rise per horizontal foot (or their metric equivalent), or as the angle in degrees its surface deviates from the horizontal. A flat roof has a pitch of zero in either instance; all other roofs are pitched .

  6. Bituminous waterproofing - Wikipedia

    en.wikipedia.org/wiki/Bituminous_waterproofing

    The underlayment also sheds any water which penetrates the roof covering from an ordinary leak, a leak from wind-driven rain or snow, wind damage to the roof covering, or ice dams. However, the application of underlays may increase the roof temperature, which is the leading cause of ageing of asphalt shingles. Not installing an underlay may ...

  7. Roof - Wikipedia

    en.wikipedia.org/wiki/Roof

    These buildings tend to accumulate a large amount of snow on them, which is seen as a factor in their insulation. The pitch of the roof is in part determined by the roofing material available, a pitch of 3 in 12 (1:4) or greater slope generally being covered with asphalt shingles, wood shake, corrugated steel, slate or tile.