The ChemCurb Penetration Seal System

PDF DownloadDownload Product Literature

ChemCurb System penetration seals

Penetration Calculator

Calculate product required for square ChemCurb/E-Curb installation

Number of Penetrations/Installations

Volume of the ChemCurb/E-Curb:
Always figure 2" minimum depth. Less sealant invalidates warranty.

Width (inches) Depth (inches) Length (inches)

Volume of penetration displacement (inches):

Width (inches) Depth (inches) Length (inches)

Sealant packaging size:

Calculate product required for round ChemCurb/E-Curb installation

Number of Penetrations/Installations

Volume of the ChemCurb/E-Curb:
Always figure 2" minimum depth. Less sealant invalidates warranty.

Diameter (inches) Depth (inches)

Volume of penetration displacement:

Diameter (inches) Depth (inches)

Sealant packaging size:

The ChemCurb System Penetration Seal System

Roof penetrations are the most common source of leaks. Pipes, mechanical equipment, vents, solar panels and lightning protection are examples of penetrations which, in time, will create avenues for water. Repeated cycles of load, heat, cold, moisture, water ponding, and ultraviolet inevitably degrade pitch pans, rain caps, boots and other types of seals aimed at preventing leaks.

The ChemCurb System replaces the old style metal pitch pans with versatile precast curb components, pourable sealant, and structural adhesive/sealant. The system can usually be installed in under 15 minutes and eliminates the need for flashing or mechanical attachment.

The ChemCurb System is designed for use on granulated modified bitumen, PVC, PIB, TPO single ply, asphalt, and coal tar B.U.R. Please note TPO Primer must be used on TPO substrates.

The ChemCurb system forms a durable waterproof rubber seal around penetrations of any size. An extended warranty against leaks is activated when CHEM LINK Construction & Maintenance receives a completed warranty card and proof of purchase.

Purchase chemlink products

The ChemCurb System - Advantages

ChemCurb System Components

ChemCurb precast form components are composed of gray polyester resin. The ChemCurb is 2 inches high and is available in a variety of shapes and sizes. Bisected circular curbs have an inside diameter of 7.5 or 5 inches. Straight pieces are available in 6 and 12 inch lengths and combined with 2-inch radius corners to create larger sizes. The outer surface is impervious to ice, corrosion, UV (ultraviolet light), and ponding water.