distributed by: best materials ® ph: 800-474-7570, 602 …may 12, 2013 · m-1® structural...
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Distributed by: BEST MATERIALS ® Ph: 800-474-7570, 602-272-8128 Fax: 602-272-8014 www.BestMaterials.com Email: Sales@BestMaterials.com
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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.
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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.
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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
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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.
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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.
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2 3 4
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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.
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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
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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
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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
" 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
" diameter beads of M-1 as shown, to
the bottom of each ChemCurb section.
DO NOT TOOL THE M-1 BEADS SMOOTH!
Sheet:
3 of 16
DRW #:Title:
ChemCurbs
Date:
May 12, 2013
Drawn by:
Christian Appold
DRW #:
CL-CC-02
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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
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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
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L - SHAPED CONFIGURATION
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 with
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.
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
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H - BEAM PENETRATION
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
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.
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
Prime penetrations with
M-1 , extending up 3" from
base of penetration.
DO NOT USE ROOF CEMENT!
Christian Appold
Sheet:
7 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, 602-272-8128 Fax: 602-272-8014 www.BestMaterials.com Email: Sales@BestMaterials.com
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CABLE SUPPORT PENETRATION
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
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.
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
Prime penetrations with
M-1 , extending up 3" from
base of penetration.
DO NOT USE ROOF CEMENT!
Sheet:
8 of 16
DRW #:Title:
ChemCurbs
Date:
May 12, 2013
Drawn by:
Christian Appold
DRW #:
CL-CC-02
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SOLAR PANEL MOUNT
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
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.
OPTION: An additional bead of
applied over top of the external
bead of M-1 to lock in granules
on granulated roof membranes.
5" Diameter ChemCurb Sections
Prime penetrations with
M-1 , extending up 3" from
base of penetration.
DO NOT USE ROOF CEMENT!
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
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MACHINERY SCREEN
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
Roof Membrane
Fill ChemCurbs
Pourable Sealer when installing
on granulated membranes and
around high movement details.
M-1 Structural Sealant for
bonding ChemCurb scarf joints.
(Not shown for clarity)
External bead of M-1 required.
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
Prime penetrations with
M-1 , extending up 3" from
base of penetration.
DO NOT USE ROOF CEMENT!
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
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VERTICAL WALL PENETRATIONS
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
flush with the top of the ChemCurb.
bonding ChemCurb scarf joints.
(Not shown for clarity)
External bead of
ChemCurb Sections
Prime penetrations with
base of penetration.
DO NOT USE ROOF CEMENT!
Sheet:
11 of 16
DRW #:Title:
ChemCurbs
Date:
May 12, 2013
Drawn by:
Christian Appold
DRW #:
CL-CC-02
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ANGLE IRON PENETRATION
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
M-1 Structural Sealant for
bonding ChemCurb scarf joints.
(Not shown for clarity)
ChemCurb Sections
Prime penetrations with
M-1 , extending out 3" from
base of penetration.
DO NOT USE ROOF CEMENT!
External bead of M-1 required.
OPTION: An additional bead of
applied over top of the external
bead of M-1 to lock in granules
on granulated roof membranes.
Roof Membrane
Fill ChemCurbs
Pourable Sealer when installing
on granulated membranes and
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
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SLOPED ROOF PENETRATION
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
Roof Membrane
Fill ChemCurbs on sloped roofs
bonding ChemCurb scarf joints.
(Not shown for clarity)
ChemCurb Sections
Prime penetrations with
base of penetration.
DO NOT USE ROOF CEMENT!
Sheet:
13 of 16
DRW #:Title:
ChemCurbs
Date:
May 12, 2013
Drawn by:
Christian Appold
DRW #:
CL-CC-02
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PENETRATION NEAR WALL FLASHING
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
M-1 Structural Sealant for
bonding ChemCurb scarf joints.
(Not shown for clarity)
ChemCurb Sections
Prime penetrations with
M-1 , extending out 3" from
base of penetration.
DO NOT USE ROOF CEMENT!
External bead of M-1 required.
OPTION: An additional bead of
applied over top of the external
bead of M-1 to lock in granules
on granulated roof membranes.
Roof Membrane
Fill ChemCurbs
Pourable Sealer when installing
on granulated membranes and
around high movement details. On all
Pourable Sealer can be used.
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
Distributed by: BEST MATERIALS ® Ph: 800-474-7570, 602-272-8128 Fax: 602-272-8014 www.BestMaterials.com Email: Sales@BestMaterials.com
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HOT STACK PENETRATION
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
Roof Membrane
Fill ChemCurbs with DuraSil SL silicone
for low slope applications
or DuraSil Non Sag silicone
for sloped roof applications.
DuraSil
bonding ChemCurb scarf joints.
(Not shown for clarity)
External bead of DuraSil
silicone required.
ChemCurb Sections
Prime penetrations with
DuraSil
up 3" from base of
penetration.
DO NOT USE ROOF CEMENT!
Sheet:
15 of 16
DRW #:Title:
ChemCurbs
Date:
May 12, 2013
Drawn by:
Christian Appold
DRW #:
CL-CC-02
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TPO MEMBRANE
A minimum 1" space is required between all
penetrations and the interior wall of all ChemCurbs.
TPO Roof Membrane
Fill ChemCurbs
Pourable Sealer.
M-1 Structural Sealant for
bonding ChemCurb scarf joints.
(Not shown for clarity)
External bead of M-1 required.
ChemCurb Sections
Prime penetrations with
M-1 , extending up 3" from
base of penetration.
DO NOT USE ROOF CEMENT!
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, 602-272-8128 Fax: 602-272-8014 www.BestMaterials.com Email: Sales@BestMaterials.com
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