Home Roofing and False ceiling Roofing Estimate Sheet Roofing Estimate Form For Flat Roof Forms And Picture Of Sheet 0007062
Brief description from Roofing Estimate Sheet above :
Pre-manufactured roof trusses come in a wide variety of styles. They are designed by the manufacturer for each specific building. Timber trusses also are built in a variety of styles using wood or metal joints. Heavy timber rafters typically spaced 8 feet (2.4 m) to 12 feet (3.7 m) apart are called principal rafters. Principal rafters may be mixed with common rafters or carry common purlins.