Top States. Bureau of Labor Statistics data show that forensic science technicians in the District of Columbia lead the nation, with $74,050 in average annual earnings in May 2011. Workers in Illinois made $73,290 on average, crime scene investigators in Virginia earned $71,140 and workers in California made $68,880.alifornia employed the greatest number of forensic science technicians of any state, followed by Florida, where workers earned $46,820 on average. Arizona had the highest concentration of investigators after the District of Columbia, and workers in Arizona earned $55,110 a year on average.
While more expensive than asphalt, metal roofing lasts longer and is more wind resistant. Materials: May be composed of steel, aluminum, copper, or zinc alloy. Steel roofs come with either a zinc coating or painted finish. Copper roofs are installed unfinished and acquire a protective green patina with age.
Standing seam metal roofs are a particular type of metal roofing that is made up of panels that are held together in place by small clips at the seam. The clips are configured to remain raised or standing above the level of the metal panels, hence the term standing seam.These seam clips can be anywhere from 0.5 inch to 1.5 inch high, and snap over the edges of the panels. They are fastened into the roof using a screw.his is exactly what you'll get with this type of roofing. 10. Cost benefits. While a standing seam metal roof is typically not the cheapest roofing option to install, it offers unmatched costs advantages when you consider the periodic repairs, maintenance, and shorter life expectancy of traditional roofing systems.