Prefabricated roof curbs have been in use since the roof has been utilized for something other than keeping weather out. And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday. The primary function of the curb is to keep weather out while supporting/flashing the equipment on it.
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.
Webster's unabridged dictionary defines the verb "innovate" as "to introduce something new, or make changes in anything established." This article explores five ladder innovations designed to make ladders safer, more versatile, and easier to use.
The Bureau of Labor Statistics (BLS) has estimated that 33 percent of construction trade fatalities are due to falls from heights and 6 percent of these falls originated from a ladder. According to the Consumer Product Safety Commission's 1994 study, more than 90,000 people in the United States received emergency room treatment for ladder-related injuries and 300 died. Underwriters Laboratories estimates that over 222,000 portable ladder accidents requiring professional medical treatment are reported every year in the United States.
The cranes being driven out of the assembly plants at Grove, Manitowoc, Link Belt, Krupp and Liebherr, are not your grandfather's or even your father's models.
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