EFCO 8800 Assembly Instructions Vol.2

EFCO 2012 Page

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Flat Wall Assembly Instructions Volume 2 of 6 - Sections 4 - 6

April 2012

PART NO. Y802

EFCO 2009 Page 2

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Table of Contents

Volume 1 of 6

1. General Notes and Guidelines

2. Parts Identification

3. Frame Assembly

Volume 2 of 6

SECTION PAGE

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

4. Unit Glazing Preparation : SSG and Captured………….........................................

5. SSG Unit Glazing

A. Temporary Glazing Locators…………………………......................................

B. Setting and Caulking Glazing ……………………………………………………
C. Adapter Installation………………….……………………………………………..
D. Weather Seal Application…………………………………………………………
E. Jamb Mullion Installation………………………………...……………………….

6. Captured Unit Glazing
A. Temporary Glazing Locators……………………………………………………..
B. Setting and Caulking Glazing ……………………………………………………
C. Adapter and Cover Installation……….………………………………………….
D. Joint Plug Installation………………….…………………………………………..
E. Jamb Mullion Installation………………………………...……………………….

6 - 7

8
9 - 10
11 - 15
16 - 17
18 - 19

20
21 - 22
23 -30
31 - 32
33 - 34

Note: Assembly Instructions are provided as a supplement, and should be used in conjunction with

the approved shop drawings.

EFCO 2009 Page 2

EFCO 2009 Page 3

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Table of Contents

Volume 3 of 6

7. Outside 90° Corner Frame Assembly

8. Inside 90° Corner Frame Assembly

9. Outside 90° Corner Unit Glazing Preparation : SSG and Captured

10. Inside 90° Corner Unit Glazing Preparation : SSG and Captured

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Volume 4 of 6

11. Outside 90° Corner SSG Unit Glazing

12. Inside 90° Corner SSG Unit Glazing

13. Outside 90° Corner Captured Unit Glazing

14. Inside 90° Corner Captured Unit Glazing

Note: Assembly Instructions are provided as a supplement, and should be used in conjunction with

the approved shop drawings.

EFCO 2009 Page 3

EFCO 2009 Page 4

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Table of Contents

Volume 5 of 6

15. General Notes and Guidelines

16. Size Limitations

17. Standard Hardware Identification

18. Frame Assembly - Vent at Fixed Horizontal

19. Frame Assembly - Vent at Stack Sill

20. Unit Glazing Preparation - Vent at Fixed Horizontal

21. Unit Glazing Preparation - Vent at Stack Sill

22. SSG Vent Unit Glazing at Fixed Horizontal

23. SSG Vent Unit Glazing at Stack Sill

24. Captured Vent Unit Glazing at Fixed Sill

25. Captured Vent Unit Glazing at Stack Sill

26. Assembly and Glazing - SSG Vent at Fixed Horizontal

27. Assembly and Glazing - SSG Vent at Stack Sill

28. Assembly and Glazing - Captured Vent at Fixed Horizontal

29. Assembly and Glazing - Captured Vent at Stack Horizontal

30. Hardware Mounting On Unit Assembly

31. Hardware Mounting On Sash

32. Mounting Vent Assembly Into Unit Assembly

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Note: Assembly Instructions are provided as a supplement, and should be used in conjunction with

the approved shop drawings.

EFCO 2009 Page 4

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Table of Contents

Volume 6 of 6

33. Shadow Box Assembly

34. Shadow Box Installation

35. Shadow Box Insulation Installation

36. Back Panel Installation

37. Back Panel Insulation Installation

38. Final Cleaning

Minimizing Condensation

Note: Please reference EFCO's "Understanding Condensation" brochure which can be obtained through your EFCO
representative.
Condensation will form on any surface when unfavorable conditions (interior temperature and relative humidity and
exterior temperature) are present. When the formation of excessive condensation is a concern, it is highly recommend ed that a
design professional is utilized to perform an analysis of the shop drawings to recommend the best possible installation methods.
Please contact your EFCO representative for information on EFCO's Thermal Analysis Services.
Many current installation practices lead to an increase in the possibility of the formation of condensation. Though not all
inclusive, the list of examples below illustrates conditions under which condensation is lik ely to occur:

1. Bridging system thermal break with non-thermally broken metal flashing or lintels th at are exposed to the exterior

2. System exposure to cold air cavities

3. Interior relative humidity levels not maintained at recommended levels, see EFCO’s “Understanding
Condensation” brochure

4. Inadequate separation between system and surrounding condition at perimeter

5. Product combinations during the shop drawing stage that result in bridging thermal breaks
of one or all products involved

Note: Assembly Instructions are provided as a supplement, and should be used in conjunction with

EFCO 2009 Page 5

the approved shop drawings.

EFCO 2011 Page 5

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Section 4 - Unit Glazing Preparation : SSG and Captured

1. Using an approved solvent or cleaner, clean the surfaces of the mullions to receive the WC18 spacer gasket and sealant of all oils and other
contaminants. The sealant manufacturer’s preparation and application instructions should be followed exactly.

2. If sealant primer is required, apply it per the primer/sealant manufacturer’s instructions. See the note in Figure 1 below.

3. Frames must be true and square before being structurally glazed. Improperly squared units will ca use significant problems during the erection process.
Check the frame for squareness by comparing the difference between the two diagonal measurements of the frame by measuring from corner to opposing
corner for the two diagonal dimensions. The maximum out of square tolerance for a 10’-0” unit frame dimension is a dia gonal dimens ion difference of 1/16”.
If frames are found to exceed this tolerance limit, the frame must be squared using bar clamps. Additionally, individual D.L.O. squareness should be checked
using the procedure above. If bar clamps or other methods are used to square the frame, the device may need to remain on the frame until the sealant is
cured (8 hours minimum).

4. Inspect the I.G. units for the frame. Any excessive sealant or irregularities in the dual seal or glass edge should be cleaned and trimmed. Check for glass
damage, particularly along the glass edges and discard any unacceptable units. At this time, the secondary sealant joints of the insulated glass units should
be checked for proper size. The approved shop drawings will indicate the required secondary sealant joint size on the general information page. Check the
alignment of each pane making up the I.G. unit to ensure they are within acceptable limits. The I.G. unit overall dimensions should be verified for proper size.

Note: After cleaning and priming the glazing substrates
(priming when required), the glazing must be set
immediately and the structural silicone applied. The time
between cleaning, priming and applying the structural
silicone should be less than two hours. Otherwise, the
substrates may become contaminated, and the primer will
oxidize. If units have been prepared for glazing at the end
of the day, and sealant has not yet been applied, cleaning
and priming must be redone prior to glazing the next day.

Apply the WC18 spacer

gasket to the mullions.

Figure 1

EFCO 2009 Page 6

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Section 4 - Unit Glazing Preparation : SSG and Captured

5. Apply the WC18 spacer gasket to the mullions as shown below and on page 6. The gasket will run through vertically, and butt together at the corners (see
Figure 4). “Crowd” in extra gasket, (approximately 10% extra) where it runs between the vertical gaskets to ensure a snug butt joint at the corners. It is
important that there are no gaps in the gaskets where they meet in the corners. Note that the gasket is not symmetrical, and must be installed so that it is
flush with the side of the mullions (see Figure 2).

6. A 3/8” backer rod should be applied into the isolator reglet to prevent sealant from getting into the reglet. Remove the backer rod immediately after the
sealant is applied, and before the sealant begins to cure and skin over (See Figure 3).

Insert a 3/8” backer rod into isolator reglets to

keep free of sealant. Remove the backer rod

immediately, before sealant begins to skin over.

Apply WC18 gaskets

flush with the side of

the mullions.

Isolator
Reglet

Figure 2

JAMB

Butt gaskets at
D.L.O. corners.

SILL

Butt gaskets at
D.L.O. corners.

JAMB

INTERMEDIATE

Figure 4

Figure 3

Butt gaskets at
D.L.O. corners.

JAMB

HEAD

EFCO 2009 Page 7

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Section 5 - SSG Unit Glazing : A. Temporary Glazing Locators

1. In order to properly
locate the glazing,
temporary adapters must
be used at the bottom
edge of the glazing.
Apply two temporary
glazing locators (KV01,
KV02) at approximate
quarter points at the sill
and intermediate
horizontal locations as
shown in Figures 5, 6,
and 7.

2. Using an approved

solvent or cleaner,
thoroughly clean the
edges of the glazing
that will contact the
structural silicone and
spacer of all oils and
other contaminants.

Once the glass has been
cleaned, it should be
handled with gloves to
avoid contaminating the
edges that come into
contact with the
structural silicone
glazing joint.

Temporary Glazing

Locators

Figure 5

17H6

L142

HS32

KV02

Figure 6 - SSG Intermediate Horizontal

HS32 17B7

L142

EFCO 2009 Page 8

Figure 7 - SSG Stack Sill

KV01

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Section 5 - SSG Unit Glazing: B. Setting and Caulking Glazing

3. Set the glazing on the silicone spacer gaskets positioned as shown below. The edge of the gla zing i s flush with the edge of the vertical mullion. Refer to
Figure 9 below. Ensure the glazing is pressed firmly onto the setting blocks of the temporary retainers as shown in Figures 10 and 11.

4. Align the glazing as shown and noted. Ensure the glazing is positioned with the exterior side out, and the bottom of the glazing to the setting blocks. Care
should be exercised to avoid shifting or rolling the spacer gaskets when adjusting the position of the glass.

5. After the glass is aligned and in the final position, remove the setting blocks and temporary glazing locators.

6. Apply structural silicone sealant into the void between the glass and mullion per the sealant manufacturer’s application instructions. A 3/8” backer rod should
be applied into the isolator reglet to prevent sealant from getting into the reglet (see Figure 9). See additional notes, and Figures 12, 13, and 14 on page 10
for sealant application and tooling instructions.

7. Immediately tool the sealant joint after application to insure the joint is completely filled with sealant on all four sides of each piece of glazing. Make sure no
air bubbles or voids are present in the sealant joint.

8. Remove the backer rod, before the sealant begins to cure and skin over.

Note:
Only silicone sealants
which have been
developed and tested
specifically for structural
glazing applications
should be used for
glazing purposes.

Apply structural silicone
sealant into the void and

tool the joint to fill the

void completely.

Insert a 3/8” backer rod

into isolator reglet to keep

free of sealant. Remove the

backer rod immediately

before sealant begins to

skin over.

Glass is flush with

edge of mullion.

SILL

Figure 10

Figure 9

JAMB

Figure 11

JAMB

Figure 8

KV01

HEAD

Set glazing onto the silicone
spacer gaskets and against
the setting blocks at the
temporary glazing locators.

KV02

EFCO 2009 Page 9

Figure 9

Figure 10 Figure 11

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Section 5 - SSG Unit Glazing: B. Setting and Caulking Glazing

9. Follow the sealant manufacturer’s instructions for application equipment preparation and qu ality control procedures.

10. Apply sealant and tool the frames as required per the sealant manufacturer’s application instructions in the Structural Sealant Glazing Manual. Care should
be taken to insure that the sealant void at the glass edge is completely filled. The sealant gun operator should visually confirm that this void is being filled at
the time of application (See figures 12, 13 and 14). Clean up any excess sealant that may get into the gasket reglets or any other areas that sealant would
be undesirable.

11. Frames should not be moved until the sealant has cured and per the sealant manufacturer’s recommendations.

Figure 12

Note:
Only silicone sealants
which have been
developed and tested
specifically for structural
glazing applications
should be used for
glazing purposes.

Figure 13

GLASS SIZE FORMULAS

Per Side Add Dimensions

Standard Mullions - D.L.O. + 13/16”

Inside Corner Mullion - D.L.O. + 13/16”

Outside Corner Mullion - D.L.O. + 1 7/16”

Note: Job specific corner conditions may

vary glass bite. Refer to final approved

shop drawings.

Figure 14

EFCO 2012 Page 10

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2

Section 5 - SSG Unit Glazing: C. Adapter Installation

1. After sealant has cured, cut L142 to length with vinyl cutters. Apply the thermal isolator L142 into the verticals and horizontals. L142 is supplied in 1 0’-0”
lengths. L142 may be used in several pieces to accommodate the required length. By butting multiple pieces together, waste will be avoided and the desired
length can be obtained.

2. Apply the preset thermal isolator (WC16) to the head, running the gasket continuously between the vertical mullions (See Figure 18).

3. Figure 17 shows the various isolators and gaskets used in this section.

L142 Thermal

Isolator Clip

L142

Vinyl Cutters

Figure 15

WC16

L142

WC19

WC16

LC23

WC17

Figure 17

L142 Thermal

Isolator Clip

Figure 16

Figure 18

WC16 Isolator
Gasket

EFCO 2009 Page 11