Crankshaft Company manufactures equipment. Crankshaft s products range from simple automated machinery to complex systems containing numerous components. Unit selling prices range from $224,000 to $1,680,000 and are quoted inclusive of installation.
Roofing felt requires a minimum overlap of 4 inches between seams of felt and an overlap of 6 inches at roof valleys, peaks and intersections with flashing and fascia. Roofing felt must be attached to the decking with plasticap nails to resist wind damage.
In low-slope roofs, which include 2:12 up to 4:12, felt courses should overlap a minimum of 19 inches. This will provide a double layer of underlayment across the entire roof. In steep-slope roofs (4:12 and steeper), the upper courses of felt underlayment should overlap lower courses by at least 2 inches.