Pitching A Flat Roof

Step 3 prepare the materials.

Pitching a flat roof.

If you a looking for a sleek modern style a not entirely flat roof with a pitch of 1 40 should be used. How to make a flat roof have a pitch general steps step 1. For a gothic style the rafters must equal the span 60 while an elizabethan style requires the rafters to be longer than the span. Flat roof slope the slope of a roof or pitch is determined by how many inches the roof rises over 1 foot or 12 inches.

Then he and kevin install a rubber protected roof over an addition. The pitch of a roof is arrived at by dividing the vertical rise and its horizontal span or what people in the roofing industry would refer to as the slope. Step 1 calculate the roof span. The best roof pitch depends on the style of roof you are going for.

A pitched roof is more expensive. There are different kinds of roofs and all these have particular specifications for their installation. Flat roofs which aren t perfectly flat require a small slope to allow for water runoff. Determine the roof span and pitch.

Calculate how much the roof span is going to be by measuring from one top plate to the other top plate. Step 4 re sheath roof. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Step 2 calculate material prices.

Generally such roofs have a pitch ranging from 1 2 12 to 2 12. It is a significant renovation if you are converting from flat to pitched. Flat roofs also don t last as long. An example for a steep sloped roof is 8 12.

Another possibility is to cut a fall into the roof insulation something several businesses now offer it s often referred to as tapered insulation. Roof pitch in layman s language simply refers to the steepness of the roof. Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks. Step 5 replace roofing.

Tommy explains how to seal a flat roof. Thisoldhouse asktoh subscribe to this old house. This means that the rise of the slope goes up or down 8 inches for every 12 inches. Tear off the old materials and apply roof sheathing.

A far more common method is to use firring strips which are battens cut at an angle and placed on top of the roof joists. Adding pitch to a flat roof.