Installation Instructions
Installation should only be completed by individuals skilled with the necessary tools for installation.
If you doubt your skills, please consult a qualifi ed installer.
Deck Mount Glass Skylight
Deck Mount Skylight
Installation Instructions
WARNING: Please take the time to read
through the ENTIRE instructions prior
to starting any work. Not following the
instructions will invalidate the warranty.
Tools Needed:
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, the
light shaft may require special ventilators to remove moist air.
■ To prevent roof failure and possible injury, be sure the skylight
remains adequately supported by the roof, if either headers or
rafters are setback from edge of the rough opening.
Important Warnings:
■ Do not cut roof trusses. lf trusses must be cut, obtain expert
guidance from an architect, structural engineer, or roof truss
manufacturer. Work from professionally prepared plans.
■ Support the roof with braces before cutting rafters, to prevent roof
failure which can cause severe injury 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 procedures
recommended by the saw manufacturer.
■ To avoid injury or damage, use blocks or bracing to prevent
cutout section from dropping as it is freed.
■ Stay clear of cutting area while sawing; be especially
careful of hand placement and falling debris on the interior,
underneath the work area.
Horizontal Cross Section:
• Safety Glasses
• Saw
• Hammer
• Utility Knife
• Crow Bar
• Sealant Gun
• Tape Measure
• #8 x 1 5/8” Truss
Head Drywall Screws
• Shingles
• Roo ng Felt
• Sealant
• 2” x 4” Lumber
• Plywood/Drywall
• Level/Plumb Bob
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
Standard Skylight Sizes:
Size
Rough Opening
width x length
21x38 21.5” x 38.5”
21x46 21.5” x 46.5”
Deck Mount Vented Glass Skylight