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Asphalt shingles on a home in Avalon, New Jersey. Two types of base materials are used to make asphalt shingles, organic and fiberglass.Both are made in a similar manner, with an asphalt-saturated base covered on one or both sides with asphalt or modified-asphalt, the exposed surface impregnated with slate, schist, quartz, vitrified brick, stone, [6] or ceramic granules, and the under-side ...
Here’s photos and video of damage taken by Herald-Leader staff photographers around Lexington and Central Kentucky and social media posts on the severe weather.
Satellite photos of New Orleans taken in March 2004, then on August 31, 2005, after the levee failures. Investigators focused on the 17th Street and London Avenue canals, where evidence showed they were breached even though water did not flow over their tops, indicating a design or construction flaw. Eyewitness accounts and other evidence show ...
Shingles historically were called tiles, and shingle was a term applied to wood shingles, [1] as is still mostly the case outside the US. Shingles are laid in courses, usually with each shingle offset from its neighbors. The first course is the starter course and the last being a ridge course or ridge slates for a slate roof.
Ventilation of the roof deck speeds the evaporation of water from leakage or condensation and removes heat which helps prevent ice dams and helps asphalt shingles last longer. 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 ...
Some modern shingles are produced in pre-cut decorative patterns, sometimes called fancy-cut shingles, and are available pre-primed for later painting. The sides of rectangular shingles may be re-squared and re-butted, which means they have been reworked so the sides are parallel and the butt is square to the sides.
Raising awareness. Ali Fedotowsky opened up about her struggle with shingles after being diagnosed at a rare age. Celebrity Health Scares Through the Years Read article “Some of you noticed that ...
For much of the 20th century, the then-titled Johns-Manville Corporation was the global leader in the manufacture of asbestos-containing products, including asbestos pipe insulation, asbestos shingles, asbestos roofing materials and asbestos cement pipe. [1]