Installation Guide
19
(2) 2-1/2” Pan Head Sheet 
Metal Screws (Not Included)
3/32” Bit
Drill
Phillips Drill Bit
TOOLS & PARTS
On roof, locate and install Top Adjustable Tube 
into roof ashing. Install Trim Ring at ceiling. Install 
Bottom Adjustable Tube in attic as seen in diagram.
1
Frame 2 x 4 support between joists. Span from roof 
to ceiling with a length of 2 x 4 flat to outside of each 
Adjustable Tube creating a “spine”.
2
Put a (2) 2-1/2” pan-head, sheet metal screw (not 
included) in each connecting extension.
3
Slide next tube section in and attach with screw/s. 
Continue until all but one extension is connected. Cut 
and install last section of extension tube.
4
Tape ALL joints. Go to Section 9 to continue standard install.
5
Long Shaft Installation
For long shaft installation, use steps listed below, referring to 
those listed on previous pages for more specific install details.
Extension Tube(s)
Top Adjustable
Tube
Bottom
Adjustable Tube
2 x 4 Support
(2) 2-1/2” 
Sheet Metal
Screws
Section-11
Long Shaft Installation










