NOTE-- We retired the BidMagic construction estimating
software in 2001. It has been replaced by Goldenseal construction
estimating software.
We still include this BidMagic estimating software manual
as a convenience for users of our older program. Many features are similar, in Goldenseal estimating.
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Roof Type
The BidMagic construction estimating software needs to know what type of roof you will have,
so it can use some basic geometry to suggest important roof dimensions. If the roof is
all one type, you can choose a simple roof type, and define the roof with
just a few numbers. Otherwise, you can specify it as a complex roof, and break it up into separate components.
Choosing
a Roof type
Use the cycle button to choose one of the ten possible roof types. When deciding on a
roof type, ignore any dormers or extra gables, and concentrate on just the main roof.
- None-- There is no
work being done on the roof at all.
- Flat-- The entire roof consists of one or more horizontal planes with
zero slope.
- Shed-- The entire roof consists of simple sloped planes with no ridges. The planes don't
have to be connected, and they can run in different directions, but they should all have
the same slope. If not, choose Complex.
- Gable-- The roof consists of one or more pairs of planes sloping in opposite
directions, with a ridge between them.
The gable roofs don't have to be connected, and they can run in different directions, but all surfaces should have
the same slope. If not, choose Complex.
- Gambrel-- The roof is similar to a gabled roof, but with two different slopes
on each side. The upper slope can be flatter
than the lower slope (Example 1) or steeper (Example 2). NOTE: If a gable roof has a second slope
at the overhang only, it can still be treated as a gable with a different overhang
slope (see page 211).
- Hip-- The roof
consists of multiple planes all with the same slope, draining towards each wall (Example 1)
- Mansard-- The
roof is similar to a hip roof, but each segment consists of two slopes (Example 2).
The upper slope may be zero (flat). NOTE: If a hip roof has a second slope at the overhang
only, it can still be
treated as a hip with a different overhang slope (see page 210).
- Arch-- The roof is similar to a gable
roof, but the roof surface is curved. The entire roof may consist of a portion of
a cylinder, with a flat spot on top and no ridge line (Example 3). It may also consist of
two cylinder sections with
a sharp ridge on top (Example 4).
- Dome-- The roof is a fully curved surface draining in all directions--either
a hemisphere (flat on top, Example 3), or a curved surface that's been rotated around a central axis (with a point
on top, Example 4). Unlike an arch roof, a dome will have no straight lines in any direction.
- Complex-- The roof is
a mixture of more than one roof type, or it consists of one roof type with multiple slopes.
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