nystrom EJ-EWN-200MB User manual

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©2020 Nystrom, Inc.
Rev/2020
Installation, Operation
+ Maintenance Manual
Elastomeric Exterior Wall System Expansion Joint
Model(s): EW/200MB/300MB/400MB/500MB/600MB
GENERAL DESCRIPTION
This Elastomeric Exterior Wall System is a weather tight system that
accommodates thermal and seismic movement. The visual seal
matches many exterior building colors and the rear moisture
barrier prevents and exterior moisture or condensation from
entering the wall cavity.
Introduction + Safety
Please read the complete instructions carefully before beginning any work. To ensure proper
installation and performance of the Roof Hatch, the following actions must be completed by
the installing contractor. Failure to do so will affect product warranty.
Transportation + Storage
oInspect all shipments and materials for missing or damaged components and hardware.
oMaterial must be stored in a clean, dry location.
GENERAL SAFETY PRECAUTIONS Improper selection, installation, or use can cause personal injury or property damage. It
is solely the responsibility of the user, through its own analysis to select products suitable for their specific application
requirements, ensure they are properly maintained, and limit their use to its intended purpose. Follow proper local,
state and federal regulations for proper installation and operation requirements.

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©2020 Nystrom, Inc.
REV JUL/2020
Installation, Operation & Maintenance Elastomeric
Exterior Wall System Expansion Joint
Model(s):EW/200MB/300MB/400MB/500MB/600MB
STANDARD COMPONENTS
* Additional components needed for adhesive installation. Place order for required quantities.
** Optional components for splice procedures. Place order for required quantities
Components
Visual Seal Color Part Number
Model
Black
Seal
White Seal
Gray Seal
Beige Seal
EJ-EWN-200MB
-
B
W
G
E
EJ-EWN-300MB
-
B
W
G
E
EJ-EWN-300MB
-
B
W
G
E
EJ-EWN-400MB
-
B
W
G
E

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©2020 Nystrom, Inc.
REV JUL/2020
Installation, Operation & Maintenance
Elastomeric Exterior Wall System Expansion Joint
Model(s):EWN/200MB/300MB/400MB/500MB/600MB
EJ-EWN-500MB
-
B
W
G
E
EJ-EWN-600MB
-
B
W
G
E
INSTALLATION
1. Apply adhesive along back of the aluminum extrusions prior to installation. (following adhesive
manufacturers guidelines).
a. Note: Adhesive manufacturer may require coating adjacent surfaces, verify with adhesive
manufacturer prior to proceeding.
2. Field measure all lengths and directional changes for aluminum extrusions to ensure their proper
layout where required.
3. Mount extrusions to wall surface and install temporary wood
blocking (Fig. 1) to secure extrusions to wall while adhesive cures
and for field drilling for standard installation.
oWood blocking should be non-continuous to permit field
drilling of anchor holes at required spacing. Contact
adhesive manufacturer for proper cure times before
proceeding to next step.
oAlways review architectural plans for specific project requirements
Note
oFor Standard Installation, continue to step 4
oFor adhesive installation, continue to step 6
Fig. 1

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©2020 Nystrom, Inc.
REV JUL/2020
Installation, Operation & Maintenance
Elastomeric Exterior Wall System Expansion Joint
Model(s):EW/200MB/300MB/400MB/500MB/600MB
4. Position aluminum extrusions and mark hole locations. Drill holes through aluminum flange and into
walls for 3/16” @ 18” on center (Fig. 2).
5. Secure aluminum extrusion to wall with 3/16” Tapcon screws at
18” on center
6. Before installing moisture barrier, apply Sikaflex 1A adhesive to
rear locking cavities of the aluminum extrusions. Ensure full
engagement of locking lug.
7. Before installing visual seal apply Sikaflex adhesive into the front locking cavities of the aluminum
extrusions (1A Fig. 3). Ensure full engagement of locking lug.
8. Utilizing roller tool apply pressure directly over locking lug to ensure
proper engagement of seal lug (Fig. 4).
Visual Seal Field Splice Procedures (Fig. 5)
1. Cut ends of the visual seal, with a sharp knife, to the desired angle
using a formed jig with miter box {supplied by contractor). Ensure
cuts are clean, straight and square.
2. Cleans ends of seal with a solvent to remove any foreign
material.
3. Reassemble mitered ends of adjacent seals utilizing the
reinforcing corner clips (for go transitions only}.
4. Apply adhesive as specified by the manufacturer to one of the two seal
surfaces to be bonded.
5. Apply pressure bringing the two surfaces in tight contact immediately upon completing application of
the adhesive. Hold in place for approximately one to two minutes to allow adhesion.
6. Re-check quality of all miters or splices and apply additional adhesive if required to ensure proper
miter or
7. splice.
8. Contact manufacturer for clarification of above procedure (if
required) prior to proceeding with splicing visual seal profile. It is
usually recommended to allow 15 minutes time before installing
spliced seal. Care shall be exercised as a result that it takes 24
hours for adhesive to fully cure.
Fig. 3
Fig. 4
Fig. 5
Fig. 2

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©2020 Nystrom, Inc.
REV JUL/2020
Installation, Operation & Maintenance Elastomeric
Exterior Wall System Expansion Joint
Model(s):EW/200MB/300MB/400MB/500MB/600MB
OPERATION
Expansion Joints are designed and built for years of dependable service.
MAINTENANCE
oAnnual inspections should be performed to make sure the system is still in position. Repair and/or
replace as needed.
QUESTIONS?
For more information on installation, repair or replacement, please visit www.Nystrom.com