Roof Eave Length

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.

Roof eave length.

By gibraltar building products 17 95. The length of the overhang depends primarily on the climate. 29 gauge galvalume gr2 gable rake flashing in gray. An eave is the edge of the roof that overhangs the face of a wall and normally projects beyond the side of a building.

If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. The rafter member will be longer. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12. It is the length of this portion of the rafter.

29 gauge galvalume ef3 eave flashing in white. Drip edge flashing. The roof overhang length must be properly engineered to resist wind uplift. Roof base length width how roof pitch is calculated.

The eaves may terminate in a fascia a board running the length of the eaves under the tiles or roof sheets to cap off and protect the exposed rafter ends and to provide grounds on which to fix gutters. Includes result for hip valley factor slope factor and the roof slope in degrees. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. This is particularly true in geographical regions where high winds are a common issue.

To accurately calculate the area of your roof you must first determine its slope or pitch. Pitch is the incline of the roof represented as the ratio of rise to the span twice the run. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction. Multiply the gutter length by four if the eave is roughly one foot by five for a two foot eave and by six for a three foot eave.

It is often compared to slope but is not exactly the same. If you plan to have overhang etc. For example if the roof rises 4 feet and the span is 16 feet twice the run then the pitch is 4 16 or 1 4. Overhangs are common in most house designs providing protection against both wind and rain.

The siding underneath the overhang is known as the soffit.