American Steel Buildings, LLC   1-800-511-3670      Copyright 2010 Home  I  About Us  I  Contact Us  I  Buying Process  I  F.A.Q. The Roof Slope is explained as the tangent of an angle that a roof surface makes with the horizontal, usually expressed in units of vertical rise to 12 units of horizontal run The roof pitch or roof slope is usually shown as a ratio to 12 (i.e., 1:12, ½:12, 4:12, etc.).  When inches are used as a basic unit, a 4:12 roof pitch means that the roof rises 4 inches in every 12 inches measured horizontally across the width of the building from the side to the peak of the building. So as an example, if you have a 60’ wide building and the eave height is 10’ tall, from the sidewall to the center of the width of the building it would be 30’ wide With a 2:12 slope, for every foot in width you gain, you will be adding 2 inches in height. With 30’ to the center of the building you will have gained 60” inches to the center of the peak When you divide that by 1 foot (12 inches) we see that we will have increased by a height of 5’ feet. So a 60’ wide building with a 10’ eave and a 2:12 roof slope will have a peak of 15’ where-as a 1:12 slope will have only added 2’6”, 12’6” peak We offer roof slopes from .25:12 up to 6:12 (and greater upon special request) Please view the pictures below to see several examples of buildings with different Roof Slopes American Steel Buildings Roof Slope - Agricultural - Aircraft Hangars - Automotive - Boat Storage - Church Buildings - Commercial/ Retail - Custom Design - Equestrian - Manufacturing - Mini-Storage - Office Buildings - Personal Garage - Pre-Engineered - Recreational - Warehouses Roof Panels PBR Double-Lok Retro-R Craftsman Lok-Seam Wall Panels PBR PBA PBU Insulated Panels Liner Panels Color Charts Ultra-Dek Batten-Lok Super-Lok Traditional Shadow-Rib Nu-Wall Primary - Gable Symmetrical - Gable Unsymmetrical - Single Slope - Lean-To Secondary - Purlins - Girts - Eave Struts - Base Condition - Building Design - Quote Request - Canopies - Eave Trim - Framed Openings - Insulation - Louver Vents - Mansards/ Facades - Overhead Doors - Parapet Walls - Partition Walls - Purlin Extensions - Roof Vents - Skylights/ Wall-Lights - Sliding Doors - Walk Doors - Windows Home > Building Design > Roof Slope Buildings with 1:12 Slope Roof Pitch Buildings with 2:12 Slope Roof Pitch Buildings with 3:12 Slope Roof Pitch 4:12 Slope 5:12 Slope 6:12 Slope 3:12 Slope on Left ; 1:12 Slope on Right Steel  Buildings American