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 3-1/2” high. Be sure
inside measurement of curb is the same as roof opening measurement.
b) Secure curb to roof.
6
Shingle roof up to bottom of curb.
7
Flash curb (sizes 2525, 2549, 3333,
3349, 4949 can be used with Sun-Teks
preformed, pre-cut Step Flash Kit with
one-piece head and sill). 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 ush with
curb top.
8
Shingle up sides and across the top.
9
Position the skylight over the curb with
the THIS EDGE DOWN” label at the lowest side of the curb. Center the skylight
over the curb making sure the foam gasket is in contact with the top of the curb.
As the fasteners, (see fastener schedule), are being attached to the curb, push
down on the frame just above the fastener to insure the gasket is compressed
to form a good seal. Use the 1¾” spiral ring shanked nails, provided. Continue
attaching the remaining fasteners in the same manner. All fastener installation
holes provided must be used.