Minimum Shed Roof Slope

The corrugated metal roof minimum slope is 5 degrees.

Minimum shed roof slope. For lots more information on which roof finish to use for which slope and indicative costs. It is the recommended slope as there is no guarantee if you opt for flatter pitch than this. Visit the shed roofing page. There are advantages and disadvantages to having a steep pitch versus a shallow or low pitch.

A quarter inch slope is the lowest you would go with a metal roof experts recommend at least a half inch minimum to ensure a weatherproof interior for your shed. The minimum pitch for. Determine the minimum slope of the roof based on the roofing material. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.

Match roof material and use appropriate slope match the roofing on the covered porch with the main roof. For slopes below 20 degrees systems such as epdm fibreglass metal roofing can be used. A 4 12 pitch being 4 inches of vertical rise over one foot or 12 inches of horizontal run. Remember metal roofing is more expensive than shingles.

Felt shingle systems can achieve lower slopes down to about 20 degrees. In roofing it is expressed in inches of vertical rise over inches of horizontal run.