Stewart Filmscreen AT 1.5 User manual

AT 1.5
Fixed Frame, Tensioned and Grommet Screen
OWNER’S MANUAL

Printed in U.S.A. Stewart Filmscreen Corporation
Stewart Filmscreen reserves the right to make changes to the product specified in this document.
Sizes and specifications subject to change without notice at manufacturer’s discretion. From time to
time, this document is updated. Current versions of documentation are posted on the Stewart
Filmscreen website at: www.StewartFilmscreen.com
Revision 1.1
Date: 6/25/2021

AT 1.5
O W N E R’ S M A N U A L
Contents
To the Owner
4
About the AT 1.5 Screen
5
Preparing the Installation
6
Frame Assembly Instructions
8
Wall Board Mount
9
Wall Plate Mount
11
Eye Bolt (Hanging) Mount
12
T-Stand (Self-Supporting) Mount
14
Aperture Mount
15
Attaching the Screen to the Frame
16
This Screen Seems too Small
19
Caring for and Cleaning the Screen
20
One (1) Year Limited Warranty
21

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Stewart Filmscreen – AT 1.5
TO THE OWNER
Congratulations on purchasing the finest optical viewing screen in the world.
Your handcrafted AT 1.5 projection screen has been carefully inspected to ensure you will have an
optimal viewing experience that will last many years. Please take a moment to review this manual. It
will guide you through the installation and the operation of your screen and will also provide you with
detailed instructions on how to care for your screen’s viewing surface.
From all of us at Stewart Filmscreen, we would like to thank you for choosing AT 1.5. Should you have
any questions, please don’t hesitate to contact our customer service department at
1 [phone], or toll free at 1 [phone]. We’re here to help.
Mary Stewart Frank Gomez
CEO and Owner Fixed Frame Masking Specialist

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Stewart Filmscreen – AT 1.5
ABOUT THE AT 1.5 SCREEN
The AT 1.5 fixed frame supports all projection applications. The screen features angled corners and a
beveled edge that brings the image area closer to the frame. The tensioned and grommet mounting
assures perfect lay-flat characteristics of the screen. The VeluxTM finish is designed to absorb any
projector overscan.
USING THIS MANUAL FOR INSTALLATION
If you are using this manual to install the AT 1.5, you should be aware that it describes procedures for
several types of mounts. You must refer to the section for the type of mounting system you are utilizing.
In addition, there are general instructions for attaching the screen to the frame that are provided in a
separate section. This procedure is to be performed at a specific step in the overall sequence.
For the instructions related to your specific mount type, refer to the appropriate page:
‣Wall Board Mount (page 9)
‣Wall Plate Mount (page 11)
‣Eye Bolt (Hanging) Mount (page 12)
‣T-Stand (Self-Supporting) Mount (page 14)
‣Aperture Mount (page 15)
At the designated point in the installation, you will need to refer to the general instructions for
Attaching the Screen to the Frame, pages (16-18).

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Stewart Filmscreen – AT 1.5
PREPARING THE INSTALLATION
Before proceeding with the installation of this screen, take the time to thoroughly read and understand
these installation instructions. Failure to comply with the instructions and guidance contained in this
manual may result in voiding your warranty.
SPECIFICATIONS
Specifications regarding the individual screen dimensions, weight, etc., are provided by the factory
when the unit is ordered.
Before beginning the installation
‣Make sure there is a clean surface on which to unroll the screen and assemble the frame.
‣Check the size and weight of the screen to be installed so that you can plan for the number of people
required for installation. You will need at least two people to mount the smaller screens; more are
needed for larger, heavier screens.
What’s inside the box?
Inside your AT 1.5 unit box, you will find everything you need to get started on enjoying your Stewart
screen:
‣Screen material, rolled up in a tube
‣Disassembled frame with all the hardware needed to reassemble
‣Packing material
‣Specified optional mounting hardware
‣Quick Start Guide
You will need
‣A level
‣A drill
‣A drop cloth
‣Tools for tightening fasteners
‣Lint-free, clean cloth gloves for handling the screen
‣Fasteners appropriate for the surface on which the screen is being mounted
‣Ladders for the personnel supporting the screen during the mounting process
‣Lift or scaffolding, if the screen is to be flown

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Stewart Filmscreen – AT 1.5
PREPARING THE INSTALLATION (CONTINUED)
NOTE: Bolts and other fasteners for the screen are standard gauges and sizes used in the U.S.,
regardless of the installation country. For this reason, sizes are in inches rather than metric
measurements.
Unpacking
Be sure to unpack carefully in a clean area. Use special care when handling the screen so that it does not
become soiled or damaged. If you plan to repack your screen and hardware for transportation to another
location, you may wish to photograph or make a note of how it was packed. Keep the packing material.
⚠
CAUTION
Do not stand on the screen tube or store it on its end. This will cause screen damage. If you
are not going to install the screen immediately, make sure it remains horizontal during
storage. Note: Failure to comply with the instructions and guidance contained in this
manual may result in voiding your warranty.

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Stewart Filmscreen – AT 1.5
FRAME ASSEMBLY INSTRUCTIONS
1. Connect the frame members by matching numbered dots on the ends of the
members (see Figure 1).
2. Secure the frame members with the supplied 1/4-20 x 3/4” hex head bolts.
Figure 1. Frame Assembly
Detail A. Repeat for all Corners

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Stewart Filmscreen – AT 1.5
WALL BOARD MOUNT
NOTE: Professional mounting techniques should be used. Stewart Filmscreen cannot be liable
for substandard or faulty installations. Failure to comply with the instructions and guidance
contained in this manual may result in voiding your warranty.
1. Lay assembled frame face down
on a clean surface (see Figure 2).
2. Fit wall boards to the outside of
the brackets already attached to
the frame.
3. Bolt wall boards to brackets using
the supplied 1/4-20 x 3/4” hex
head bolts (see Figure 3).
Note: Depending on the size of the
screen, the number of wall boards
may vary. This temporary
attachment of the wall boards to the
frame helps to position the frame
and brackets on the wall.
4. Without the screen material
attached, position the frame and
boards on the wall.
5. Make sure the unit is level and
plumb. You may need to use
shims between the boards and
the wall to achieve vertical
plumb.
6. Align the board holes with wall
studs.
7. Mark and drill holes in the wall
that align with the board holes.
Figure 2: Temporarily Attaching
Wall Boards to the Frame
Figure 3: Positioning the Frame
and Wall Boards to the Wall
Wall Boards

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Stewart Filmscreen – AT 1.5
WALL BOARD MOUNT (CONTINUED)
8. Remove the boards from
the frame and attach them
to the wall using the
provided hardware where
applicable or other such
appropriate fasteners (lag
bolts, wall anchors, molly
bolts, wood carriage screws,
etc. (refer to Figure 4.)
9. Attach the screen to the
frame (see pages 16-18).
10. Attach the frame/screen
assembly to the previously
mounted wall boards on the
wall using the 1/4-20 x 3/4” hex
head bolts (refer to Figure 5).
Note: On some large custom sized
frames the use of additional “back
support braces” may be included.
These vertical support braces
assure parallel top and bottom
frame member alignment once the
screen has been attached to the
frame. Do not install the
screen/frame without the
required back braces.
Figure 4: Attaching the
Wall Boards to the Wall
Figure 5: Finished Screen
Attached to Wall Boards
⚠
CAUTION
Be careful not to touch or scratch the
viewing surface.

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Stewart Filmscreen – AT 1.5
WALL PLATE MOUNT
NOTE: Professional mounting techniques should be used. Stewart Filmscreen cannot be liable for
substandard or faulty installations. Failure to comply with the instructions and guidance contained
in this manual may result in voiding your warranty.
The Wall Plate Mount allows you to install the screen frame as close as possible to wall. In order to
do so, you will need to install the screen material after the frame has been mounted.
1. Prepare wall for mounting by
ensuring you have wall studs
located in same location as your
AT 1.5 frame (see Figure 6).
2. With the help of another person,
carefully lift the frame and place
against the wall. A third person will
then need to fasten the top frame
member to the wall, first starting
with the middle-most wall plate
and going to the sides (see Figure
7).
3. After the top frame member is
secured, you may fasten the rest of
the members in any order desired.
4. Attaching the screen to the frame
(see pages 16-18).
Figure 6. Wall Studs in Location of Wall Plate with no Screen
Installed at this Step. (Wall Studs Shown for Clarity)
Figure 7. Fasteners Being Attached to Top Frame Member.

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Stewart Filmscreen – AT 1.5
EYE BOLT (HANGING) MOUNT
NOTE: Professional mounting techniques should be used. Stewart Filmscreen cannot be liable
for substandard or faulty installations. Failure to comply with the instructions and guidance
contained in this manual may result in voiding your warranty.
1. Attach the screen to the frame (see pages 16-18).
2. Use the Eye Bolt Mount to suspend the screen. Eye bolts are already secured to the frame,
making your AT 1.5 ready for installation to an appropriate surface (refer to Figure 8).
Note: A false ceiling is not intended to support the weight of an AT 1.5. Contact a Stewart
representative for more information.
Figure 8. Eye Bolts Mounted Securely to Frame
NOTE: On some large custom sized frames the use of additional “back support braces” may be
included. These vertical support braces assure parallel top and bottom frame member alignment
once the screen has been attached to the frame. Do not install the screen/frame without required
back braces.
⚠
CAUTION
Be careful not to touch or scratch the viewing surface.
Eye Bolt

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Stewart Filmscreen – AT 1.5
EYE BOLT (HANGING) MOUNT (CONTINUED)
3. If the installation requires the use of a scaffold or lift, one person on the floor must work together with
the person on the scaffold to rotate the screen cylinder to unroll the screen. You also may need a third
person on the ground to move the scaffold or lift.

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Stewart Filmscreen – AT 1.5
T-STAND (SELF-SUPPORTING) MOUNT
NOTE:Professional mounting techniques should be used. Stewart Filmscreen cannot be liable
for substandard or faulty installations. Failure to comply with the instructions and guidance
contained in this manual may result in voiding your warranty.
1. Attach the screen to the frame (see pages 16-18).
2. Use the T-Stand knobs provided to first attach the vertical members to each base, then attach
the finished screen (frame/screen assembly) to the T-Stands. The through holes on each vertical
member should run parallel to the base (refer to Figure 9).
3. Hand-tighten the knobs.
NOTE: On some large custom sized frames the use of additional “back support braces” is
required. These vertical support braces assure parallel top and bottom frame member
alignment once the screen has been attached to the frame. Do not install the screen/frame
without the required back braces.
⚠
CAUTION
Be careful not to touch or scratch the viewing surface.
Figure 9. Attaching T-Stand Knobs

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Stewart Filmscreen – AT 1.5
APERTURE MOUNT
NOTE: Professional mounting techniques should be
used. Stewart Filmscreen cannot be liable for
substandard or faulty installations. Failure to comply
with the instructions and guidance contained in this
manual may result in voiding your warranty.
The Aperture Mount allows you to install the screen
into an opening in a wall or wall unit. You will need
access to the back of the screen to install the
attachment hardware.
1. Prepare the aperture.
2. Attach the screen to the frame (see pages 16-18).
3. Carefully insert the frame (with the screen
already attached) into the aperture. Take care so
that you do not damage the screen.
4. Install the frame/screen assembly in the aperture
using the attached mounting brackets and
appropriate fasteners (see Figure 10).
Figure 10: Installing Frame/Screen
Assembly - Rear View, Close Up
⚠
CAUTION
Be careful not to touch or scratch the viewing surface.

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Stewart Filmscreen – AT 1.5
ATTACHING THE SCREEN TO THE FRAME
The general procedure for attaching lace and grommet screens to the frame is the same for all
mounting and screen types. Specific notes for wraparound screens and owner supplied frames are
as follows:
Attach the screen to the top left corner of the frame first, then along the top, then the sides, then the
bottom. Read all of the tips below and follow the sequence.
Note: Read all instructions before beginning. Have all tools and equipment ready.
During packing and transit, the screen may shrink. Stewart vinyl screen material has some
elasticity and will stretch and spring back. The grommet edge binding will not stretch past the
manufactured outer dimensions. After the screen is attached to the frame, some tension will be
apparent at each grommet. If you have concerns, please read the section, This Screen Seems
too Small (see page 19).
Handle the screen carefully. Avoid contact of the screen fabric with fingernails. Grasp the
screen edge binding only.
As you finish attaching each section, take a moment to pause and inspect the screen to ensure
that it is not pulling or stretching in such a way that it may tear.
‣The screen is held onto a core tube by means of tie cords so that the screen material remains safe during
transit. You can cut one to two tie cords before starting to attach the screen as it is unrolled so that
there is no danger of pulling out a grommet when the screen is unrolled.
‣As the screen is being unrolled, it will be necessary to slide the extension post (at the bottom of
the screen) along the floor to keep the screen vertical as well as continuing to cut more tie cords
as you unroll.
‣Start at the top left corner, using the techniques described below (see Figure 11).
‣Attach S-hooks to the grommets to make a proper corner fit. Starting at the top left corner,
attach two to six hooks down the side and across the top. Do not allow the weight of the screen
to rest on any one hook during this time.
‣Continue along the top, using the techniques described on the next page.
⚠
CAUTION
To avoid damage to the screen use caution when handling the screen roll. Carry the roll by
the ends only. Do not place the screen roll on steps or any uneven surface as the pressure
can make permanent indentations in the screen.

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Stewart Filmscreen – AT 1.5
ATTACHING THE SCREEN TO THE FRAME (CONTINUED)
Figure 11.Screen, Audience Viewing Side
‣Continue attaching S-hooks to grommets along the top from the top left to the center top. The screen
centerline is marked with a red grommet at the frame center (see Figures 11 and 12).
‣As you work, continue to unroll the screen, cutting tie cords as required and attaching S-hooks to
grommets along the top.
‣Inspect the screen to ensure that it is properly attached and not overstretched.
‣When the middle S-hook is attached to the center top grommet, the grommet should be
within 3” or 7.5 cm of the center of the screen. If the center hook is short of the center
grommet, continue attaching the hooks along the top until you reach the end. You will need to
adjust the screen on the frame before attaching the sides. Shift the S-hooks, one grommet at a
time, to move the screen sideways on the frame. When the screen is centered on the frame,
you can proceed with the sides.
Center line
Corner
⚠
CAUTION
Do not use excessive force to stretch the screen into place as this can cause the screen to
tear and become damaged.
Center grommet
Screen center line

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Stewart Filmscreen – AT 1.5
Figure 12. Top Center of Frame
ATTACHING THE SCREEN TO THE FRAME (CONTINUED)
‣You may need to skip three or four S-hooks on the top frame member to develop enough slack
in the bungee cord to hook the grommet without creating too much tension. If you feel that you
are pulling on the screen or the bungee too much, attach only the hooks that allow for minimal
tension to give the material enough time to stretch before attaching the skipped hooks.
‣Attach the screen to the sides of the frame, using the techniques described below.
‣Attach S-hooks on the right side from the top to the center. If the screen edge is more than 4” or
10 cm from the frame on the right side, allow a few minutes for the screen to stretch before
continuing. Tension should be even — the top of the screen and frame should be parallel.
‣Attach the S-hooks on the left side, from top to bottom. Attach the S-hooks on the right
side, from the center to bottom.
‣Inspect the screen to ensure that it is properly attached and not overstretched. Check for
even tension.
‣Attach the screen to the bottom of the frame, using the techniques described below. Begin
attaching the bottom in the corners, being careful not to put too much tension on any
grommets. Work toward the center.
‣You may, once again, need to skip three or four S-hooks on the bottom frame member to
develop enough slack in the bungee cord to hook the grommet without creating too much
tension. If you feel that you are pulling on the screen or the bungees too much, attach only the
hooks that allow for minimal tension to give the material enough time to stretch before attaching
the skipped hooks.
‣If there is too much tension, wait to allow the screen time to stretch as needed. Continue
attaching the remaining S-hooks along the bottom, working toward the center.
‣Make a final inspection of the screen to verify that it is attached properly and that the corners
are free from tears and stress.

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Stewart Filmscreen – AT 1.5
THIS SCREEN SEEMS TOO SMALL
While the screen may seem too small for the frame, rest assured that it will fit. Grommeted screens
manufactured by Stewart are unique in several ways. Stewart uses a proprietary process that allows
seamless construction of all vinyl screen materials: front and rear projection, perforated and non-perf
screens. The Stewart process provides the flattest, most uniform surface possible. The final step in
achieving this surface occurs during installation when the fabric is gently pulled into its final, specified
dimension. This is accomplished by means of the shock cord and “S” hook framing system.
DON’T WORRY
It is normal and expected that a Stewart tension and grommet suspended screen appears to be too
small for the frame as the screen is unrolled. A rule of thumb is that for every 10 feet or 3 m of vertical
height, approximately 8” or 20 cm of “stretch” is engineered into the fabric. Do not worry; this is
exactly as planned.
RED GROMMET AND HOOK AT EACH CENTER LINE
Stewart puts a red grommet at the centerline of each side of the fabric. The grommet spacing is 4” or
10 cm center to center. While installing the fabric, you may find that you’ve hit the red grommet
exactly, or you may be off a grommet. If the layout is off a grommet, continue to hang the top, then go
back and do a hook for hook exchange across the top. The remainder of the fabric will be fine
“unhooked” for as long as this takes.
When the top binding of the screen is entirely
suspended and centered in the frame, the fabric
should be “necking” in toward the center from
each edge, and significantly raised above the
bottom frame member (see Figure 13).
As you lace down the sides, the shock cord
lacing system will easily come out and meet the
screen edge and the screen fabric will quickly
elongate to a perfectly planar surface.
LACING THE BOTTOM
For large scale screens that are more than 15 feet or 4.5 m in height, it may be helpful to hook every
third “S” hook across the bottom, initially, then after a few minutes, start again at the centerline, and
begin hooking all the “S” hooks. This stretching process may take up to one hour, but not more.
It is desirable that the installation site’s room temperature be somewhere between 60 to 78
degrees Fahrenheit, 15.5 to 25.5 degrees Celsius.
Figure 13. Top of Screen Laced, Showing the
“Necking” on the Sides of the Screen.

CARING FOR AND CLEANING THE SCREEN
GENERAL MAINTENANCE
With reasonable care, you may expect many years of dependable use of your Stewart projection
screen.
FOR VINYL SCREEN MATERIALS ONLY
The surface of your screen is delicate, so we encourage you to keep your screen clean. Special
attention to these instructions should be followed when cleaning.
‣Avoid getting any foreign objects on the screen, as cleaning may prove very difficult. It may not be
possible to remove scratches, paint, ink, etc.
‣A draftsman-style brush may be used to lightly whisk away any loose dirt or dust particles. ( This type
of brush is usually available at office supply stores.)
‣For tougher spots, you can make a cleaning solution using a water-based detergent and warm water.
To make the solution, mix one-part Simple Green, 409, or another water-based industrial cleaner
with three parts warm water. Moisten a clean cotton cloth, or cotton swab with this solution, moisten
the stained area, and gently lift off the stain. Never use an aggressive scrubbing action as you could
damage the screen surface by removing the optical coating. Re-moisten the area with clean water
and dab dry with a clean sponge or cotton cloth. Any residual watermarks will evaporate on their
own in afew minutes; do not attempt to manually dry the screen.
‣Contact tech support at Stewart Filmscreen if you have questions about removing difficult spots.
VELUX™ COVERING
‣Use a lint roller to remove particles from the Velux, which is the material covering the frame.
‣A brush may be used to comb (lift) the nap of the Velux material to eliminate depression marks.
ONE (1) YEAR LIMITED WARRANTY
⚠
CAUTION
‣Do not use any other cleaning materials on the screen.
‣Do not use chemicals, solvents, or alcohol-based cleaners to clean the screen. Use only
commercially available, water-based degreaser or liquid dish soap.
‣Do not use chemicals, solvents, or liquid cleaners to clean the Velux covering.
‣Do not fold or crease the screen.