distributed by: best materials ® ph: 800-474-7570, 602 …may 12, 2013 · m-1® structural...

Distributed by: BEST MATERIALS ® Ph: 800-474-7570, 602-272-8128 Fax: 602-272-8014 www.BestMaterials.com Email: [email protected]

fillers shrink and then leak, allowing water to penetrate and enter the building. These pitchpans are the weakest part of your roof.

The ChemCurb System turns the weakest part of your roof into the strongest.

The ChemCurb System was designed to replace sheet metal pitchpans and rain caps, relying instead on a permanent rubber penetration seal. Pitchpans seldom survive more than three years without repairs or replacement. ChemCurb components are guaranteed for ten years, but typically last much longer.

A twenty-year warranty is available on warranted and inspected roof systems.

ChemCurbs consist of tough, polyester forms that are bonded to the roof around the penetration, creating a cavity which is then filled with non-shrinking rubber sealant. A tight, unified bond is formed, which integrates with the penetration. Because ChemCurbs are modular and come in straight and curved sections, they

can be assembled to fit the size and shape of almost any roof penetration.

The ChemCurb System is easy to work with… and it’s environmentally friendly.

The cumbersome and labor-intensive pitchpan often takes about 45 minutes to install. ChemCurbs install easily in fewer than 15 minutes per penetration.

The ChemCurb System is based on GREEN technology: All components are completely safe for use on occupied buildings. ChemCurbs contain no solvents, no toxic materials and no carcinogens. There is no risk of fire or explosion, and ChemCurbs contain no greenhouse chemicals.

2

ChemCurbs can eliminate the number one cause of roof leaks.

Properly Installed ChemCurb Penetration Seals

Make sure your contractor installs the genuine ChemCurb System to protect the investment you’ve made in your building’s roof.


3

Roofing contractors…deliver a higher quality job at a competitive price…and eliminate callbacks.The ChemCurb System replaces messy, labor-intensive pitch pans with an engineered, modular seal that permanently encapsulates penetrations with a durable waterproof rubber boot. Chem Link warrants properly installed ChemCurbs for ten years.

ChemCurbs can be installed in an easy three-step process, significantly reducing labor costs. The system is compatible with virtually every type of low-slope roof from single ply EPDM and PVC to mod bit, TPO and asphalt.

Because of their modular design, ChemCurbs offer greater flexibility in application. They can be used on complex jobs involving multiple penetrations and structural components such as H-beams and pipe supports. A smaller series of circular 3-inch, 6-inch and 9-inch ChemCurbs called E-Curbs are available for thinner penetrations such as single pipes or electronic conduit. In all cases, ChemCurbs provide a permanent, watertight seal that saves money in installation and virtually eliminates callbacks, giving you a more value-added finished roof.

Short on installation, long on performance

4

Short on installation, long on performance.The ChemCurb System consists of three essential components: A pre-cast polyester shell, M-1® Structural Adhesive/Sealant and a self-leveling pourable sealant.

ChemCurbs are impervious to ice, corrosion, UV and ponding water and are available in Round, Straight and Corner shapes. These modular components can be arranged to fit any size and shape of the penetration. ChemCurbs bond to the roof’s surface using M-1 Structural Adhesive/Sealant, which delivers a permanent, waterproof bond. Liquid sealant is then poured to fill the cavity formed by the curbs. Installation takes eight to ten minutes under normal conditions.

Installation takes about 8-10 minutes under normal conditions.


5

Instructions for installing the ChemCurb System:

1. Preparation: It is VERY IMPORTANT to remove all previously applied caulk, mastic, cement, asphalt and other contaminants from penetrations with a wire brush to ensure proper bonding. Brush away all gravel and loose granules.

2.Position the ChemCurbs around the penetrations in the desired configuration. Use a marker to trace the perimeter of the ChemCurbs, then remove them and set aside.

3.Seal the base of each penetration with Chem Link M-1 Structural Adhesive/Sealant by coating the penetrations to three inches above the roofline.

4.Hold a section of ChemCurb flat side up, and apply two parallel beads of M-1 over the entire bottom surface. Tool the M-1 to a 1/8-inch deep coating. Apply excess M-1 to the bonding surface at the roofline to fill in and level all gaps and irregularities.

1

2 3 4

6

5.Place the coated curb section on the roof surface in the position marked in Step 2, creating a half form. Press down firmly until M-1 extrudes from the outside edges. Tool M-1 to a 1/8-inch deep coating. Place the remaining section(s) of curb on the roof surface to complete the form. Press firmly in place until excess adhesive extrudes from the outside edge and scarf joints. Tool the joints smooth. Apply a bead of M-1 around the outside base of the installed curb, and tool to form a smooth fillet. NOTE: On granulated modified bitumen, tool a thin application of M-1 ½-inch wide, around the exterior base of the installed ChemCurb to seal in granules.

6.Pour the sealer: The ChemCurb is now ready to be filled with 1-Part Pourable SealantTM. (If using Pro Pack™, thoroughly mix Parts A & B until uniformly black.) Carefully pour sealer into the ChemCurb cavity and tool off to a smooth surface.

7. Skins over and becomes watertight in 20 minutes under normal conditions. 1-Part cures from the top down and bottom up and reaches a full cure in 1 week to 4 weeks time depending upon jobsite conditions. Do not disturb the ChemCurb system until fully cured.

5 6

7

ChemCurb System

The ChemCurb penetration pieces consist

of the following sizes:

ChemCurb Straights

F1304P (6" - Gray)

-Contains 8 straights per carton only.

F1303P (12" - Gray)

-Contains 8 straights per carton only.

ChemCurb Corners

F1305P (Gray)

-Contains 8 Corners per carton only.

ChemCurb Diameter Rounds

F1302P (Gray)

-Contains 6 curbs per carton only.

F1307P (1-Part Gray Kit)

-Contains 3 curbs per carton with (2) 28 oz.

10.1 oz. cartridges of M-1 Structural Sealant.

F1301P (Gray)

-Contains 4 curbs per carton only.

F1306P (1-Part Gray Kit)

-Contains 2 cubs per carton with (2)

1

2

gal. pouches

cartridges of M-1 Structural Sealant.

F1300P (ProPack Kit)

-Contains 2 Curbs per carton with 1 gal. of PRO

10.1 oz. cartridges of M-1 Structural Sealant.

5" diameter ID round consisting of (2) 2.5" radius pcs.

7.5" Diameter ID round consisting of (2) 3.75" radius pcs.

2" corner pieces used with straight sections

to make box shapes.

6" & 12" straight sections used to lengthen the

ChemCurb. Fit both curb sizes.

Sheet:

1 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


HOW TO CALCULATE

CHEMCURB VOLUMES

Note: These figures represent volume of

sealant needed for various sizes of curb

combinations without displacement for

penetrations. (To estimate exact volume

needed, also figure volume of penetrations

and subtract from volume of curbs.)

To figure volume of a square curb:

Multiply length x width x depth, (2") x

(quantity of curbs needed) the divide by

gallons needed to fill the curb.

Note:

One

1

2

Always figure 2" depth of ChemCurbs.

Less invalidates warranty.

A corner curb adds two inches to a

straight curb on each end.

Examples:

Four 12" Straights + Four 2" Corners

Form a square 16" x 16" x 2" deep.

To figure volume of a round curb:

multiply (radius squared x 3.14 x depth)

x (quantity of curbs needed) then divide

gallons needed to fill the curb.

Four 6" Straights + Four 2" Corners

Form a square 10" x 10" x 2" deep.

7.5" round Curb + two 12" Straights

Form an oval 19.5" x 7.5" x 2" deep.

7.5" round Curb + two 6" Straights

Form an oval 13.5" x 7.5" x 2" deep.

5" round Curb + two 12" Straights

Form an oval 17" x 5" x 2" deep.

5" round Curb + two 6" Straights

Form an oval 11" x 5" x 2" deep.

7.5" round Curb

Form a diameter 7.5" x 2" deep.

5" round Curb

Form a diameter 5" x 2" deep.

Sheet:

2 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


M-1 APPLICATION TO THE

BOTTOM OF THE CHEMCURB SECTIONS

Apply

1

4

" diameter beads of M-1 as shown, to

the bottom of each ChemCurb section.

DO NOT TOOL THE M-1 BEADS SMOOTH!

Apply

1

4




Apply

1

4




Sheet:

3 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


2"

1" minimum

between pipe

and ChemCurb

1" minimum

between pipes

16"

M-1 Structural

Sealant all

around. At least

3" above

penetration(s).

SECTION VIEW

2"

Roof Surface

Apply M-1

Structural

Sealant

Prime this surface

as needed

Apply M-1

Structural

Sealant

A A

SECTION A-A

SCALE 1 : 4

Sheet:

4 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


STANDARD CHEMCURB DETAIL

Roof Membrane

Fill ChemCurbs

Pourable Sealer when installing

on granulated membranes. On all

Pourable Sealer can be used.

M-1 Structural Sealant for

bonding ChemCurb scarf joints.

(Not shown for clarity)External bead of M-1 required.

ChemCurb Sections

Prime penetrations wth

M-1 , extending up 3" from

base of penetration.

DO NOT USE ROOF CEMENT!

A minimum 1" space is required between all

penetrations and the interior wall of all ChemCurbs.

Sheet:

5 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


L - SHAPED CONFIGURATION

Roof Membrane

Fill ChemCurbs






(Not shown for clarity)

External bead of M-1 required.

ChemCurb Sections

Prime penetrations with






Mitre cut inside corners

as necessary.

ALWAYS WEAR SAFETY GLASSES

WHEN CUTTING SECTIONS.

Sheet:

6 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


H - BEAM PENETRATION



Roof Membrane

Fill ChemCurbs








OPTION: An additional bead of

applied over top of the external

bead of M-1 to lock in granules

on granulated roof membranes.

ChemCurb Sections





Christian Appold

Sheet:

7 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


CABLE SUPPORT PENETRATION



Roof Membrane

Fill ChemCurbs












ChemCurb Sections





Sheet:

8 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


SOLAR PANEL MOUNT



Roof Membrane

Fill ChemCurbs












5" Diameter ChemCurb Sections





Solar Panel Mount shall be mechanically

secured to the decking in a manner at

eliminates movement.

Sheet:

9 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


MACHINERY SCREEN



Roof Membrane

Fill ChemCurbs


on granulated membranes and

around high movement details.









ChemCurb Sections





Angle iron or support

members shall be fabricated

out of structural steel that is

secured to the structural

supports or decking in a

manner that reduces

structural movement as

much as possible.

Sheet:

10 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


VERTICAL WALL PENETRATIONS



flush with the top of the ChemCurb.



External bead of

ChemCurb Sections




Sheet:

11 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


ANGLE IRON PENETRATION






ChemCurb Sections


M-1 , extending out 3" from








Roof Membrane

Fill ChemCurbs



around high movement details.

Angle iron or support

members shall be fabricated

out of structural steel that is

secured to the structural

supports or decking in a

manner that reduces

structural movement as

much as possible.

Sheet:

12 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


SLOPED ROOF PENETRATION



Roof Membrane

Fill ChemCurbs on sloped roofs



ChemCurb Sections




Sheet:

13 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


PENETRATION NEAR WALL FLASHING






ChemCurb Sections


M-1 , extending out 3" from








Roof Membrane

Fill ChemCurbs



around high movement details. On all


Prime roof cant with M-1

Structural Sealant before filling.

Mitre cut inside corners

as necessary.

ALWAYS WEAR SAFETY GLASSES

WHEN CUTTING SECTIONS.

Sheet:

14 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


HOT STACK PENETRATION



Roof Membrane

Fill ChemCurbs with DuraSil SL silicone

for low slope applications

or DuraSil Non Sag silicone

for sloped roof applications.

DuraSil



External bead of DuraSil

silicone required.

ChemCurb Sections


DuraSil

up 3" from base of

penetration.


Sheet:

15 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


TPO MEMBRANE



TPO Roof Membrane

Fill ChemCurbs

Pourable Sealer.





ChemCurb Sections





Apply ChemLink TPO Primer with

a brush to the surface of the TPO

membrane. Primer shall extend

from the base of the pentration(s)

to 1" beyond the outside perimeter

of the ChemCurb.

Allow TPO primer to dry

before installing the ChemCurb.

Sheet:

16 of 16

DRW #:Title:

ChemCurbs

Date:

May 12, 2013

Drawn by:

Christian Appold

DRW #:

CL-CC-02


distributed by: best materials ® ph: 800-474-7570, 602 …may 12, 2013 · m-1® structural...

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