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  2. National Roofing Contractors Association - Wikipedia

    en.wikipedia.org/wiki/National_Roofing...

    "The association has more than 3,500 members from all 50 states and 53 countries and is affiliated with 97 local, state, regional and international roofing contractor associations” [1] [2] Professional Roofing is NRCA's monthly publication. Reid Ribble is the current Chief Executive Officer.

  3. Bituminous waterproofing - Wikipedia

    en.wikipedia.org/wiki/Bituminous_waterproofing

    ASTM D4869 / D4869M Standard — Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing. ASTM 4869-03 now includes the non-perforated felt referred to in ASTM D226-97a which will be phased out.

  4. Roof pitch - Wikipedia

    en.wikipedia.org/wiki/Roof_pitch

    Display of roof pitches 1:12 through 18:12 A roof made of thatch, one of the oldest roofing materials, needs a steep pitch to drain properly Some types of stone roof have a very restrictive roof pitch, which can lead to leaking Working on roofs with pitches too steep for safety requires a staging of scaffolding boards secured with roof brackets A pitch gauge measuring the slope of an asphalt ...

  5. Steep slope regulations approved unanimously by Winnetka ...

    www.aol.com/steep-slope-regulations-approved...

    Plans to enact steep slope regulations are far from a new conversation. Village Council slated the initiative for consideration in 2020 but the COVID-19 pandemic quickly overshadowed these plans ...

  6. List of commercially available roofing materials - Wikipedia

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

    Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...

  7. List of roof shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_roof_shapes

    For steep tower roof variants use Pyramid roof. Pyramid roof: A steep hip roof on a square building. Pyatthat: A multi-tiered and spired roof commonly found in Burmese royal and Buddhist architecture. Tented: A type of polygonal hipped roof with steeply pitched slopes rising to a peak; Helm roof, Rhenish helm: A pyramidal roof with gable ends ...

  8. Ponding - Wikipedia

    en.wikipedia.org/wiki/Ponding

    Ponding water accelerates the deterioration of many materials, including seam adhesives in single-ply roof systems, steel equipment supports, and particularly roofing asphalt. On low-slope asphalt roofs, ponding water allows the oil solvent components of the asphalt to leach out and evaporate, leaving the roof membrane brittle and susceptible ...

  9. Flat roof - Wikipedia

    en.wikipedia.org/wiki/Flat_roof

    A flat roof is a roof which is almost level in contrast to the many types of sloped roofs. The slope of a roof is properly known as its pitch and flat roofs have up to approximately 10°. [1] Flat roofs are an ancient form mostly used in arid climates and allow the roof space to be used as a living space or a living roof. Flat roofs, or "low ...