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2. Seismic retrofit - Wikipedia

   en.wikipedia.org/wiki/Seismic_retrofit

   Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. With better understanding of seismic demand on structures and with recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged ...

3. Asphalt shingle - Wikipedia

   en.wikipedia.org/wiki/Asphalt_shingle

   Asphalt shingles are an American invention by Henry Reynolds of Grand Rapids, Michigan. [2] They were first used in 1903, in general use in parts of the United States by 1911 and by 1939 11 million squares (100 million square meters) of shingles were being produced. [3] A U.S. National Board of Fire Underwriters campaign to eliminate the use of ...

4. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   Bituminous waterproofing. Bituminous waterproofing systems are designed to protect residential and commercial buildings. Bitumen (asphalt or coal-tar pitch) is a material made up of organic liquids that are highly sticky, viscous, and waterproof. [1] Systems incorporating bituminous-based substrates are sometimes used to construct roofs, in the ...

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

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

   On average, replacing your roof costs around $9,257 in 2024. However, the wider range is between $5,848 and $12,915 depending on where you live, size of your home, roofing material and many other ...

6. Flashing (weatherproofing) - Wikipedia

   en.wikipedia.org/wiki/Flashing_(weatherproofing)

   This enables a roof to be built without weak points. Since flashing is expensive to replace if it fails, copper's long life is a major cost advantage. Cold rolled (to 1/8-hard temper) copper is recommended for most flashing applications. This material offers more resistance than soft copper to the stresses of expansion and contraction.

7. Roof shingle - Wikipedia

   en.wikipedia.org/wiki/Roof_shingle

   Roof shingles are a roof covering consisting of individual overlapping elements. These elements are typically flat, rectangular shapes laid in courses from the bottom edge of the roof up, with each successive course overlapping the joints below. Shingles are held by the roof rafters and are made of various materials such as wood, slate ...