Installation Instructions
BUILDING LIGHT TUNNEL
800.280.2545
www.kennedyskylights.com
STEP 7 Install Headers
Opening fits between
rafters, use single headers.
One rafter cut,
use double headers.
Opening ends short of
rafter, install jack rafter.
STEP 8
Frame out the inside of the
roof opening with double
headers at the top and
bottom of the opening.
Butt 2" x 4"s against the
outside of the truss or
rafters that frame the
opening and nail into place to provide extra stability when mounting
the skylight. (Note dotted lin
es on drawing). Re: Large skylights. Any
rafter or truss that runs through the skylight opening must be cut to
meet local building codes.
IMPORTANT NOTE: If the opening is too big, fill it in with the proper
lumber to the suggested rough opening size or smaller (see size chart).
Install roofing felt and shingle to bottom of opening.
In structures that have
a space between the
ceiling and the roof
such as an
attic or
crawl space, a light
tunnel must be built.
Nailers of 2" x 4" must
be used to frame the
opening between the
roof header and the ceiling header. These will be used for
attaching the finishing material (i.e. drywall, wall board,
plywood, etc.) The light tunnel should be wrapped with
insulation for optimum performance. Select desired shaft and
frame accordingly.
ANGLED SHAFT
An angled shaft is required
when the skylight cannot be
positioned directly above the
area to be lighted because of
existing pipes, electrical wiring,
duct work or roof limitations,
such as ridges or valleys.
Locate the skylight as close to
the desired areas as possible
and then build the shaft on an
angle to the ceiling opening.
SPLAYED SHAFT
The splayed shaft is used to
permit the greatest light
exposure. This is done by
making the ceil
ing opening
larger than the roof opening.
STRAIGHT SHAFT
A straight shaft from the roof
to ceiling can be used. If the
roof is flat the ceiling and roof
openings will be the same
dimension. With a pitched
roof, however, the ceiling
opening will be slightly smaller
than the roof opening.
STEP 9
Apply liberal amount of
sealant to surrounding roof
opening. Carefully center
skylight into place. Using
pre-punched hole
s in flange,
secure to roof surface using
#8 x 1 5/8" Truss Head
Drywall Screws.* Apply liberal amount of sealant cover each hole
and fasteners, and outside of curb flange.
Pitched Roofs: Replace shingles, covering base of curb flange.
*For impact glass units, use #10 x 1 5/8" Truss Head Drywall Screws (supplied).
BUILT-UP ROOFS:
(Use SFG 4" model or check local building codes.)
Carefully apply hot pitch o
r sealant to surrounding area and base of
curb flange. Cover with rock.
INSTALL SKYLIGHT
BARREL TILE INSTALLATION:
(Use 4" or 6" curb. Check local building codes.)
After locating skylight
position on roof, carefully
remove barrel tiles and cut
rough opening. Carefully
center skylight over rough
opening and secure into
place using pre-punched
holes in flange. Mop in roll roofing over flashing. Cement tiles on
roof
around curb and skylight assembly. Finish inside curb with drywall
and trim.
Indicates 2” x 4” Headers
This information is supplied in good faith, without recommendation as to its
use and without charge. No guarantee of results of any use of the informa-
tion is to be implied, since the conditions of use are beyond our control.
Opening ts between
rafters, use single
headers
One rafter cut
use double
headers
Opening ends short
of the rafter, install
jack rafter
Planning
Step 1 - Identify Desired Location
► Overhead Placement: Consider natural light, sunshine and shade.
► Eye Level Placement: Consider natural light, sunshine and shade. To optimize the
view, the eye level is from 56” to 67” from the oor.
► Obstructions: Consider HVAC duct, gas/water pipes, and electrical devices.
Step 2 - Determine Type of Light Shaft & Header Setback
Prepare Rough Opening
Step 3 - Measure and Mark Corners
Locate position by measuring from a known point
such as a vent passing through the roof. Mark
rectangular opening.
IMPORTANT: Corners may be located by driving nails
through roof from inside.
Step 4 - Remove Shingles and Nails
Remove shingles and nails from area at least 10” back from opening. Mark rough
opening (A) by stretching and snapping a chalkline, and cut opening (B).
Step 5 - Install Headers
Based on size of opening and
rafter pattern.
Install Skylight
Step 6 Frame out the inside of the roof
opening with double headers at the top and
bottom of the opening. Butt 2x4’s against the
outside of the truss or rafters that frame the
opening, and nail into place to provide extra
stability when mounting the skylight. Any rafter
or truss that runs through the skylight opening
must be cut to meet local building codes.
IMPORTANT NOTE: If the opening is too big, ll it in with the proper lumber to the
suggested rough opening size or smaller. Install roong felt and shingle to bottom of the
opening.
Step 7 Apply a liberal amount of sealant to
the surrounding roof opening. Carefully center
the skylight into place. Using pre-punched
holes in ange, secure to roof surface using
#8x1 5/8” Truss Head Drywall Screws. Apply
liberal amount of sealant to cover each hole,
fastener, and the outside of curb ange.
Pitched Roofs: Replace shingles, covering base of curb ange. For impact glass units,
use #10 x 1 5/8” Truss Head Drywall Screws (supplied).
SFVG / SFG 2", 4", and 6"
Installation Instructions
Important Precautions:
Skylights are subject to condensation caused by warm moist air
rising from the room below. Insulate the light shaft and other areas
surrounding skylight to minimize condensation. In some cases,
light shaft may require special ventilators to remove moist air.
• Be sure skylight remains adequately supported by roof if either
headers
or rafters are setback from edge of the rough opening
to prevent roof failure and possible injury.
Important Warnings:
• Do not cut roof trusses. If trusses must be cut, obtain expert
guidance from an architect, structural engineer, or roof truss
manufacturer. Work from professionally prepared plans.
• Support roof with braces before cutting rafters to prevent roof
failure which can cause severe inju
ry and structural damage.
• Obtain guidance from an architect or structural engineer, if more
than one rafter is cut to prevent roof failure and possible injury.
Important Safety Notes:
• Remove nails and other obstructions to prevent them from
being thrown while cutting.
• Be sure electrical wires, pipes, and other building
components will not be cut or damaged.
• Wear eye protection and follow safety p
rocedures
recommended by saw manufacturer.
• Use blocks or bracing to prevent cutout section from
dropping as it is freed to avoid injury or damage.
• Stay clear of cutting area while sawing; be especially
careful of hand placement and falling debris on the interior,
underneath work area.
Tools and Materials Needed:
• Safety Glasses
• Saw
• Hammer
• Utility Knife
• Crow Bar
• Sealant Gun
• Tape Measure
• #8 x 1
/5/8” Truss
Head Drywall Screws
• Shingles
• Roofing Felt
• Sealant
• 2” x 4” Lumber
• Plywood/Drywall
• Level/Plumb Bob
STEP 1 Identify Desired Location
4 Overhead Placement: Consider natural light, sunshine and shade.
4 Eye Level Placement: Consider natural light, sunshine and shade.
Optimize the view, eye level is 56" to 67".
4 Obstructions: Consider HVAC duct, gas/water pipes and electrical
devices.
STEP 2 Determine Type of Light Shaft
STEP 4
Measure and Mark Corners
Locate position by measuring
from a known point such as
a
vent passing through the roof.
Mark rectangular opening. IMPORTANT: Corners may be located
by driving nails through roof from inside.
STEP 5
Remove Shingles and Nails
Remove shingles and nails from
area at least 10" back from
opening. Mark rough opening by
stretching and snapping a chalkline.
STEP 6
Cut Opening
HORIZONTAL CROSS SECTION
STANDARD SKYLIGHT SIZES
23"x 39"
23"x 55"
31"x 31"
31"x 39"
31"x 55"
55"x 31"
31"x 78"
39"x 39"
39"x 55"
55"x 55"
14.5"x 30.5"
14.5"x 46.5"
22.5"x 22.5"
22.5"x 30.5"
22.5"x 46.5"
46.5"x 22.5"
22.5"x 69.5"
30.5"x 30.5"
30.5"x 46.5"
46.5"x 46.5"
ROUGH OPENING
width x length
OUTSIDE FRAME
includes flange
1430
1446
2222
2230
2246
4622
2269
3030
3046
4646
MODEL
SFG/SFVG
STEP 3 Determine Header Setback (optional)
PLANNING
PREPARE ROUGH OPENING
11/13
SFVG / SFG 2", 4", and 6"
Installation Instructions
Important Precautions:
Skylights are subject to condensation caused by warm moist air
rising from the room below. Insulate the light shaft and other areas
surrounding skylight to minimize condensation. In some cases,
light shaft may require special ventilators to remove moist air.
• Be sure skylight remains adequately supported by roof if either
headers
or rafters are setback from edge of the rough opening
to prevent roof failure and possible injury.
Important Warnings:
• Do not cut roof trusses. If trusses must be cut, obtain expert
guidance from an architect, structural engineer, or roof truss
manufacturer. Work from professionally prepared plans.
• Support roof with braces before cutting rafters to prevent roof
failure which can cause severe inju
ry and structural damage.
• Obtain guidance from an architect or structural engineer, if more
than one rafter is cut to prevent roof failure and possible injury.
Important Safety Notes:
• Remove nails and other obstructions to prevent them from
being thrown while cutting.
• Be sure electrical wires, pipes, and other building
components will not be cut or damaged.
• Wear eye protection and follow safety p
rocedures
recommended by saw manufacturer.
• Use blocks or bracing to prevent cutout section from
dropping as it is freed to avoid injury or damage.
• Stay clear of cutting area while sawing; be especially
careful of hand placement and falling debris on the interior,
underneath work area.
Tools and Materials Needed:
• Safety Glasses
• Saw
• Hammer
• Utility Knife
• Crow Bar
• Sealant Gun
• Tape Measure
• #8 x 1
/5/8” Truss
Head Drywall Screws
• Shingles
• Roofing Felt
• Sealant
• 2” x 4” Lumber
• Plywood/Drywall
• Level/Plumb Bob
STEP 1 Identify Desired Location
4 Overhead Placement: Consider natural light, sunshine and shade.
4 Eye Level Placement: Consider natural light, sunshine and shade.
Optimize the view, eye level is 56" to 67".
4 Obstructions: Consider HVAC duct, gas/water pipes and electrical
devices.
STEP 2 Determine Type of Light Shaft
STEP 4
Measure and Mark Corners
Locate position by measuring
from a known point such as
a
vent passing through the roof.
Mark rectangular opening. IMPORTANT: Corners may be located
by driving nails through roof from inside.
STEP 5
Remove Shingles and Nails
Remove shingles and nails from
area at least 10" back from
opening. Mark rough opening by
stretching and snapping a chalkline.
STEP 6
Cut Opening
HORIZONTAL CROSS SECTION
STANDARD SKYLIGHT SIZES
23"x 39"
23"x 55"
31"x 31"
31"x 39"
31"x 55"
55"x 31"
31"x 78"
39"x 39"
39"x 55"
55"x 55"
14.5"x 30.5"
14.5"x 46.5"
22.5"x 22.5"
22.5"x 30.5"
22.5"x 46.5"
46.5"x 22.5"
22.5"x 69.5"
30.5"x 30.5"
30.5"x 46.5"
46.5"x 46.5"
ROUGH OPENING
width x length
OUTSIDE FRAME
includes flange
1430
1446
2222
2230
2246
4622
2269
3030
3046
4646
MODEL
SFG/SFVG
STEP 3 Determine Header Setback (optional)
PLANNING
PREPARE ROUGH OPENING
11/13
SFVG / SFG 2", 4", and 6"
Installation Instructions
Important Precautions:
Skylights are subject to condensation caused by warm moist air
rising from the room below. Insulate the light shaft and other areas
surrounding skylight to minimize condensation. In some cases,
light shaft may require special ventilators to remove moist air.
• Be sure skylight remains adequately supported by roof if either
headers
or rafters are setback from edge of the rough opening
to prevent roof failure and possible injury.
Important Warnings:
• Do not cut roof trusses. If trusses must be cut, obtain expert
guidance from an architect, structural engineer, or roof truss
manufacturer. Work from professionally prepared plans.
• Support roof with braces before cutting rafters to prevent roof
failure which can cause severe inju
ry and structural damage.
• Obtain guidance from an architect or structural engineer, if more
than one rafter is cut to prevent roof failure and possible injury.
Important Safety Notes:
• Remove nails and other obstructions to prevent them from
being thrown while cutting.
• Be sure electrical wires, pipes, and other building
components will not be cut or damaged.
• Wear eye protection and follow safety p
rocedures
recommended by saw manufacturer.
• Use blocks or bracing to prevent cutout section from
dropping as it is freed to avoid injury or damage.
• Stay clear of cutting area while sawing; be especially
careful of hand placement and falling debris on the interior,
underneath work area.
Tools and Materials Needed:
• Safety Glasses
• Saw
• Hammer
• Utility Knife
• Crow Bar
• Sealant Gun
• Tape Measure
• #8 x 1
/5/8” Truss
Head Drywall Screws
• Shingles
• Roofing Felt
• Sealant
• 2” x 4” Lumber
• Plywood/Drywall
• Level/Plumb Bob
STEP 1 Identify Desired Location
4 Overhead Placement: Consider natural light, sunshine and shade.
4 Eye Level Placement: Consider natural light, sunshine and shade.
Optimize the view, eye level is 56" to 67".
4 Obstructions: Consider HVAC duct, gas/water pipes and electrical
devices.
STEP 2 Determine Type of Light Shaft
STEP 4
Measure and Mark Corners
Locate position by measuring
from a known point such as
a
vent passing through the roof.
Mark rectangular opening. IMPORTANT: Corners may be located
by driving nails through roof from inside.
STEP 5
Remove Shingles and Nails
Remove shingles and nails from
area at least 10" back from
opening. Mark rough opening by
stretching and snapping a chalkline.
STEP 6
Cut Opening
HORIZONTAL CROSS SECTION
STANDARD SKYLIGHT SIZES
23"x 39"
23"x 55"
31"x 31"
31"x 39"
31"x 55"
55"x 31"
31"x 78"
39"x 39"
39"x 55"
55"x 55"
14.5"x 30.5"
14.5"x 46.5"
22.5"x 22.5"
22.5"x 30.5"
22.5"x 46.5"
46.5"x 22.5"
22.5"x 69.5"
30.5"x 30.5"
30.5"x 46.5"
46.5"x 46.5"
ROUGH OPENING
width x length
OUTSIDE FRAME
includes flange
1430
1446
2222
2230
2246
4622
2269
3030
3046
4646
MODEL
SFG/SFVG
STEP 3 Determine Header Setback (optional)
PLANNING
PREPARE ROUGH OPENING
11/13
BUILDING LIGHT TUNNEL
800.280.2545
www.kennedyskylights.com
STEP 7 Install Headers
Opening fits between
rafters, use single headers.
One rafter cut,
use double headers.
Opening ends short of
rafter, install jack rafter.
STEP 8
Frame out the inside of the
roof opening with double
headers at the top and
bottom of the opening.
Butt 2" x 4"s against the
outside of the truss or
rafters that frame the
opening and nail into place to provide extra stability when mounting
the sk
ylight. (Note dotted lines on drawing). Re: Large skylights. Any
rafter or truss that runs through the skylight opening must be cut to
meet local building codes.
IMPORTANT NOTE: If the opening is too big, fill it in with the proper
lumber to the suggested rough opening size or smaller (see size chart).
Install roofing felt and shingle to bottom of opening.
In structures that have
a space between the
ceiling and the roof
such as an attic or
crawl space, a light
tunnel must be built.
Nailers of 2" x 4" must
be used to frame the
opening between the
roof header and the ceiling header. These will be used for
attaching the finishing material (i.e. drywall, wall board,
plywood, etc.) The light tunnel should be wrapped with
insulation for optimum performance. Select de
sired shaft and
frame accordingly.
ANGLED SHAFT
An angled shaft is required
when the skylight cannot be
positioned directly above the
area to be lighted because of
existing pipes, electrical wiring,
duct work or roof limitations,
such as ridges or valleys.
Locate the skylight as close to
the desired areas as possible
and then build the shaft on an
angle to the ceiling opening.
SPLAYED SHAFT
The splayed shaft is used to
permit the greatest light
exposure. This is done by
making the ceiling opening
larger than the roof opening.
STRAIGHT SHAFT
A straight shaft from the roof
to ceiling can be used. If the
roof is flat the ceiling and roof
openings will be the same
dimension. With a pitched
roof, however, the ceiling
opening will be slightly smaller
than the roof opening.
STEP 9
Apply liberal amount of
sealant to surrounding
roof
opening. Carefully center
skylight into place. Using
pre-punched holes in flange,
secure to roof surface using
#8 x 1 5/8" Truss Head
Drywall Screws.* Apply liberal amount of sealant cover each hole
and fasteners, and outside of curb flange.
Pitched Roofs: Replace shingles, covering base of curb flange.
*For impact glass units, use #10 x 1 5/8" Truss Head Drywall Screws (supplied).
BUILT-UP ROOFS:
(Use SFG 4" model or check local building codes.)
Carefully apply hot pitch or sealant to surrounding area and base of
curb flange. Cover with rock.
INSTALL SKYLIGHT
BARREL TILE INSTALLATION:
(Use 4" or 6" curb. Check local building codes.)
After locating skylight
position on roof, carefully
remove barrel tiles and cut
rough opening. Carefully
center skylight over rough
opening and secure into
place using pre-pun
ched
holes in flange. Mop in roll roofing over flashing. Cement tiles on roof
around curb and skylight assembly. Finish inside curb with drywall
and trim.
Indicates 2” x 4” Headers
This information is supplied in good faith, without recommendation as to its
use and without charge. No guarantee of results of any use of the informa-
tion is to be implied, since the conditions of use are beyond our control.
BUILDING LIGHT TUNNEL
800.280.2545
www.kennedyskylights.com
STEP 7 Install Headers
Opening fits between
rafters, use single headers.
One rafter cut,
use double headers.
Opening ends short of
rafter, install jack rafter.
STEP 8
Frame out the inside of the
roof opening with double
headers at the top and
bottom of the opening.
Butt 2" x 4"s against the
outside of the truss or
rafters that frame the
opening and nail into place to provide extra stability when mounting
the sk
ylight. (Note dotted lines on drawing). Re: Large skylights. Any
rafter or truss that runs through the skylight opening must be cut to
meet local building codes.
IMPORTANT NOTE: If the opening is too big, fill it in with the proper
lumber to the suggested rough opening size or smaller (see size chart).
Install roofing felt and shingle to bottom of opening.
In structures that have
a space between the
ceilin
g and the roof
such as an attic or
crawl space, a light
tunnel must be built.
Nailers of 2" x 4" must
be used to frame the
opening between the
roof header and the ceiling header. These will be used for
attaching the finishing material (i.e. drywall, wall board,
plywood, etc.) The light tunnel should be wrapped with
insulation for optimum performance. Select desired shaft and
frame accordingly.
ANGLED SHAFT
An angled shaft is required
when the skylight cannot be
positioned directly above the
area to be lighted because of
existing pipes, electrical wiring,
duct work or roof limitations,
such as ridges or valleys.
Locate the skylight as close to
the desired areas as possible
and then build the shaft on an
angle to the ceiling opening.
SPLAYED SHAFT
The splayed shaft is used to
permit the greatest light
exposure. This is done by
making the ceiling opening
larger than the roof opening.
STRAIGHT SHAFT
A straight shaft from the roof
to ceiling can be used. If the
roof is flat the ceiling and roof
openings will be the same
dimension. With a pitched
roof, however, the ceiling
opening will be slightly smaller
than the roof opening.
STEP 9
Apply liberal amount of
sealant to surrounding roof
opening. Carefully center
skylight into plac
e. Using
pre-punched holes in flange,
secure to roof surface using
#8 x 1 5/8" Truss Head
Drywall Screws.* Apply liberal amount of sealant cover each hole
and fasteners, and outside of curb flange.
Pitched Roofs: Replace shingles, covering base of curb flange.
*For impact glass units, use #10 x 1 5/8" Truss Head Drywall Screws (supplied).
BUILT-UP ROOFS:
(Use SFG 4" model or check local building codes.)
Carefully apply hot pitch or sealant to surrounding area and base of
curb flange. Cover with rock.
INSTALL SKYLIGHT
BARREL TILE INSTALLATION:
(Use 4" or 6" curb. Check local building codes.)
After locating skylight
position on roof, carefully
remove barrel tiles and cut
rough opening. Carefully
center skylight over rough
opening and secure into
place using pre-punched
holes in flange. Mop in roll roofing over flashing. Cement tiles on roof
around curb and skylight assembly. Finish inside curb with drywall
and trim.
Indicates 2” x 4” Headers
This information is supplied in good faith, without recommendation as to its
use and without charge. No guarantee of results of any use of the informa-
tion is to be implied, since the conditions of use are beyond our control.
A B
Straight Angled Splayed
www.kennedyskylightsatmenards.com | 800.280.2545
Flared Opening
HeadersBlocking
Squared Opening
Headers
Building Light Tunnel
In structures that have a space between the ceiling and
the roof such as an attic or crawl space, a light tunnel
must be built. Nailers of 2” x 4” must be used to frame the
opening between the roof header and the ceiling header.
These will be used for attaching the nishing material, i.e.,
drywall, wall board, plywood, etc. The light tunnel should
be wrapped with insulation for optimum performance.
Select the desired shaft, and frame accordingly.
ANGLED SHAFT
An angled shaft is required when the
skylight cannot be positioned directly
above the area to be lighted because
of existing pipes, electrical wiring,
duct work, or roof limitations such as
ridges or valleys. Locate the skylight
as close to the desired areas as
possible, and then build the shaft on
an angle to the ceiling opening.
SPLAYED SHAFT
The splayed shaft is used to permit
the greatest light exposure. This is
done by making the ceiling opening
larger than the roof opening.
STRAIGHT SHAFT
A straight shaft from the
roof to ceiling can be used. If the roof
is at the ceiling and roof openings
will be the same dimension. With
a pitched roof, however, the roof
opening will be slightly larger than the
ceiling opening.
Indicates
2”X4” Headers
Built-Up Roofs:
(Use 4” model or check local building codes.)
Carefully apply hot pitch or sealant to the surrounding
area and base of curb ange. Cover with rock.
Barrel Tile Instructions:
(Use 4” or 6” curb. Check local building codes.)
After locating skylight position on roof, carefully remove
barrel tiles and cut rough opening. Center skylight over
rough opening, and secure into place using pre-punched
holes in ange. Mop in roll roong over ashing. Cement
tiles on roof around curb and skylight assembly. Finish
inside curb with drywall and trim.