Installation Guide

5 Build curb:
a) Construct curb with 2 x 4’s, 2 x 6’s, etc. (depending on height desired or
building code requirements). Curb should be minimum 3½” high. Be sure
inside measurement of curb is the same as roof opening measurement.
b) Secure curb to roof. See fastener schedule and drawing.
6 Shingle roof up to bottom of curb.
7 Flash curb with Sun-Tek’s preformed, pre-cut Step Flash Kit with one-piece head and sill - (not for use on metal roofs). Or use
galvanized sheet metal, aluminum, or copper. Metal should extend a minimum of 4” over shingles (on bottom side), then up sides of
curb. Flashing should be flush with curb top.
MODEL iCMG
Use on any type roof (curb required)
CURB O.D.
Roof
Opening
Finished
Opening
SIZE INFORMATION Fastener Schedule
Size
Code
Roof
Opening
Finished
Opening
(½” Drywall
Dimension)
Curb Outside
Dimension
Fits on
Center
Spacing
SKYLIGHT TO CURB
#12 x 2” Phillips Pan
Head Screws
CURB TO DECK
#10 x 3½”
Deck Screws
Short
Side
(Per)
Long
Side
(Per)
Short
Side
(Per)
Long
Side
(Per)
2525 22½” x 22½” 21½” x 21½” 25½” x 25½” 24” 3 3 3 3
2549 22½” x 46½” 21½” x 45½” 25½” x 49½” 24” 3 4 3 4
4949 46½” x 46½” 45½” x 45½” 49½” x 49½” 16”, 24” or 48” 4 4 5 5
2582 - 1/21
Sun-Tek Manufacturing, Inc.
10303 General Drive
Orlando, FL 32824
[phone]
www.Sun-Tek.com
[e-mail]
You will need:
• hammer • utility knife
• keyhole saw • tape measure
• skill saw • chalkline or straight edge
• nails • trowel or caulk gun
• drill
• 2 x 4’s
For Light Tunnel:
• 8 or 10 penny nails
• plywood or drywall
RECOMMENDED SEALANTS:
• 100% Silicone
• (or equivalent) Butyl
rubber sealant/caulk
1 To properly position skylight between trusses/rafters, locate the roof opening from the
underside of the decking. (If this area is not accessible, locate the ceiling joists from inside the
house, mark opening in ceiling (a-c), and cut ceiling opening. Then follow steps below for roof
opening.)
a) measure distance between trusses/rafters and mark center point.
b) to center skylight, measure one-half of appropriate roof opening to each side of center
point and mark.
c) using the side marks as a guide, mark corners by drilling holes or driving nails through
roof.
2 Remove shingles 6 - 8” out from roof opening.
3 Cut roof opening (snap a chalkline from corner to corner, or draw line with a straightedge.)
4 Frame roof opening:
a) cut two 2 x 4’s to fit the actual distance between trusses/rafters and nail into place.
b) cut two 2 x 4’s to the exact length of the roof opening and nail to the trusses/rafters.
c) if applicable, cut ceiling opening and build tunnel framing. (See “Light Tunnel Installation
Instructions.”)
INSTALLATION INSTRUCTIONS
INSULATED GLASS SERIES
FAILURE TO FOLLOW RECOMMENDED INSTALLATION PROCEDURES MAY VOID WARRANTY
Check local building codes for glass requirements. • Please read instructions completely before beginning. • Deck and roofing felt
should already by installed.
All installation information is supplied in good faith, but without recommendation to its use. No guarantee of the results of any use of this information is to be
implied, since conditions of use are beyond our control. Please consult local building codes for compliance before installing.