For example if a roof has a pitch of 412 then for every 12 inches the building extends horizontally it rises 4 inches. Then youll be able to measure slope from an unfinished attic space under the roof. Access one of the rafters then take.
For example if a roof has a pitch of 412 then for every 12 inches the building extends horizontally it rises 4 inches.
Mark the length with the marker. On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12-inch. On a ladder at the gable end of your house place the level against the gable trim flat against the side of the. Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.