Duac Clindamycin (1.2%) and Benzoyl Peroxide (5%) Gel reviews. Read or post reviews on thousands of acne products & treatments.
To find the length of your rafters, multiply the run in inches by the rafter length factor and divide by 12. For example: The run is 96 x 12.65 (length factor for a 4/12 roof) = 1214.4 divided by 12 =101.2 inches.Not quite done yet!dd that to the 102.2 inches (101.2 plus 14.75 = 115.95 or 116 inches). Your rafters will need to be at least 116 inches long. Porch Home / Build a Porch / Roofing Materials Comparison. If your rise and run (or slope) is 4/12, multiply the square footage above (504) by 1.06.
Rafters are found on steep roofs (slope of more than 2 in 12). Rafters are typically 2 by 4's, 2 by 6's, 2 by 8's or 2 by 10s. The rafters support the sheathing and typically run from the roof peak down to the eaves. The rafters carry the dead load of the sheathing and roofing material, and the live loads above. Rafters may also carry the ceiling loads below on cathedral ceilings. Roof joists are found on low-slope roofs (slope of 2 in 12 or less). Their functions are similar to rafters.