In 2001, backed by the National Academy of Sciences research report, Occupational Safety and Health Administration (OSHA) Assistant Secretary Charles Jeffress stated to Congress that implementation of the recently passed Ergonomics Standard would prevent over 460,000 serious workplace injures and save the nation’s employers $9 billion each year.
Ventilating today's cathedral ceilings is more of a challenge than ventilating regular roofs. Because of the isolated air spaces in rafter cavities, cathedral ceilings are especially prone to moisture damage - posing unique ventilation problems.
Roof hatches are frequently used to provide safe and convenient access to and from rooftop areas in commercial buildings. These products allow service personnel to gain access to the roof for maintenance and facilitate the installation or removal of large pieces of equipment into or out of a building.
Every year in the United States, chemical and thermal burns account for an estimated 700,000 emergency room visits, with more than 45,000 patients requiring extended hospitalizations for treatment such as skin grafts.
All successful roof projects require that the installers adhere to proper application methods. Improper workmanship contributes to a decrease in the roof systems service life. All types of roof systems - both steep-slope and low-slope applications - are prone to potential workmanship errors. In the case of steep-slope shingle applications, there are a number of common mistakes that should be avoided to ensure a long service life. A successful roofing project and satisfied client can be achieved if these common mistakes can be avoided in the field.
Decades ago, a foreman instructed me in my roofing duties by simply stating, "Keep your feet under you and your ass behind you." I've had worse advice since then.
It's a clear July morning with temperatures in the high 80s - a perfect day to lay 20 or 30 square of shingles. It's a little humid, but the winds out of the south give you just enough relief as you begin to sweat.
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