Roof drain clamp ring

What’s in this rate

This unit is installing one roof drain clamp or compression ring at an existing or new drain bowl. The roofer seats the ring, compresses the membrane, and seals the bowl interface. The rate is per each ring. Full commercial roof drain assembly and overflow drain are separate units.

Build-up

Labor 0.5 hr × $65.00 wage and burden

$32.50

Material and small tools

$50.75

Direct rate (labor, material, and tools)

$83.25 / EA

Overhead 10% of direct

$8.32

Fee 10% of (direct and overhead)

$9.16

Loaded rate

$100.73 / EA

Related rates

• Commercial roof drain — $577.26 / EA
• Parapet wall flashing — $35.17 / LF
• Heat-weld seam TPO — $7.50 / LF

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