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EXAMPLES
These examples will indicate the potential decrease in costs by illustrating material differences, both in size and quantity. Decreased Costs on Labor will follow the same pattern. Because of the many variations throughout the country in manual work, materials, organization, etc., it is too difficult to give dollar values that will be consistent.

However, a quick comparison of the examples will show the possible savings available. Each individual can then relate this to their own situation and realize the money saved through the cost reduction.

The following examples illustrate the potential savings and advantages that can be achieved with Raintrol® roof drains.
CONDITIONS APPLY TO ALL EXAMPLES 1 THRU 7:
Location.........................................Paducah, Kentucky
Rainfall..................................................... 4" per hour
Flow Control...........................10 yr. storm return period
Leaders ........................................Vertical- 20 ft. high
Storm Sewers.....................................1/4" per ft. slope
 Roof Size ...........................210' x 580' or 121,800 sq. ft.
 Type Roof.....................Flat Roof or 4" Rise (as indicated)

To view an example, click on the Example name(s):

EXAMPLE 1 - CONVENTIONAL METHOD USING SMITH 4" FIG. 1010 ROOF DRAIN FOR FLAT ROOF

EXAMPLE 1 - CONVENTIONAL METHOD USING SMITH 4" FIG. 1010 ROOF DRAIN FOR FLAT ROOF

EXAMPLE 2 - CONVENTIONAL METHOD USING SMITH 5" FIG. 1010 ROOF DRAIN FOR FLAT ROOF

EXAMPLE 2 - CONVENTIONAL METHOD USING SMITH 5" FIG. 1010 ROOF DRAIN FOR FLAT ROOF

EXAMPLE 3 – RAINTROL® METHOD - MAXIMUM ECONOMY FOR FLAT ROOF
EXAMPLE 3 – RAINTROL® METHOD - MAXIMUM ECONOMY FOR FLAT ROOF

EXAMPLE 4 - RAINTROL® METHOD - LIMIT DRAIN DOWN TIME TO 12 HOURS FOR FLAT ROOF
EXAMPLE 4 - RAINTROL® METHOD - LIMIT DRAIN DOWN TIME TO 12 HOURS FOR FLAT ROOF

EXAMPLE 5 – CONVENTIONAL METHOD USING SMITH 6" FIG. 1010 ROOF DRAIN FOR 4" RISE ROOF
EXAMPLE 5 – CONVENTIONAL METHOD USING SMITH 6" FIG. 1010 ROOF DRAIN FOR 4" RISE ROOF

EXAMPLE 6– RAINTROL® METHOD – MAXIMUM - ECONOMY FOR 4" RISE ROOF
EXAMPLE 6– RAINTROL® METHOD – MAXIMUM - ECONOMY FOR 4" RISE ROOF

EXAMPLE 7– RAINTROL® METHOD – LIMIT DRAIN DOWN TIME TO 12 HOURS FOR 4" RISE ROOF
EXAMPLE 7– RAINTROL® METHOD – LIMIT DRAIN DOWN TIME TO 12 HOURS FOR 4" RISE ROOF
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