Roof Slope 1 4 Over 12 Roof Plan Notes

The replacement of the roof shall be conducted in such a manner as to protect the existing building and all of its contents in their entirety.

Roof slope 1 4 over 12 roof plan notes.

The slope ratio represents a certain amount of vertical rise for every 12 inches of horizontal run. Provide a minimum roof r value of r 24 or greater. I e if the roof surface slope is 1 4 ft the cricket panel slope should be 1 2 ft there are exceptions to this rule please call us for further information. This will give you the rise over run or pitch.

Provide positive drainage to roof or deck drains at slope 1 4 per foot minimum on the entire roof. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. Distance between points 1 and 2. Concrete deck deck clamp clamping ring strainer base flashing ply 40 1016mm hpr modified membrane felt base ply hpr modified membrane min.

However you can only use this pitch with built up roofing or specialized synthetic roofing. If the rise is 6 inches for every 12 inches of run then the roof slope is 6 in 12 the slope can be expressed numerically as a ratio. Provide guard rail roof plan general notes a. A roof that rises 4 inches for every 1 foot or 12 inches of run is said to have a 4 in 12 slope.

48 1219mm taper insulation. For example if you measure 4 inches the pitch of your roof is 4 12. Provide tapered insulation as required to maintain a 1 4.