Installation Instructions
INSTALLING HORIZONTAL SHEET METAL ON THE CARPORT FRAME:
Sheet metal panels run horizontally on your carport/building.
Carport Panel lengths are all 10’ or 10’ and 14’ for longer structures:
10’ panels at the ends of an 18’ long frame will overhang the frame 11” at both ends. 14’ panels at the ends of the roof
will overhang the frame 5” at the front and 4” at the back.
Panel layout for the different possible frame lengths in the order of assembly down the length of the building:
18’ frame: 10’,10’ (11” overhang front & back). 22 1/2’ frame: 10’, 14’ (5” overhang front & 4” back). 27’ frame: 10’,
10’, 10’ (11” overhang front & 10” back) 31 1/2’ frame: 10’, 14’, 10’ (11” overhang front & 10” back). 36’ frame: 14’, 10’,
14’ (5” overhang front & 4” back). 40 1/2’ frame: 14’, 14’, 14’ (5” overhang front & 4” back). 45’ frame: 10’, 14’, 14’,
10’ (11” overhang front & 10” back). 49 1/2’ frame: 14’, 14’, 10’, 14’ (5” overhang front & 4” back). 54’ frame: 14’, 14’,
14’, 14’ (5” overhang front & 4” back). 58 1/2’ frame: 10’, 14’, 14’, 14’, 10’ (11” overhang front & 10” back). Note: different
length panel combinations will require different amounts of overlap at the front to back joints. You will have to determine
the amount you will need based on your panel combinations. (The basic 18’ long carport using two 10’ panels will have a
overlap of 2” on top of the center frame section and 11” frame overhangs at both ends of the carport.)
STEP 1: Installing Panel 1 (See list above for the required panel length)
On the bottom of the panel, put a light pencil mark to indicate the overhang. (11” or 5”) This line will help you keep the
overhang square with the end of the frame.
THE FIRST PANEL SHOULD BE INSTALLED ON THE LOW END OF THE CARPORT FOR PROPER DRAINAGE.
Before you assembled the Roof/Wall sections, you should have put a mark on one side of each peak as a guide for the
under lap edge of the first run of panels down the peak of the carport. If you did not, refer to page 10 for the proper mark
location.
Place the first panel on the roof with the under lap edge of the panel lined up with the marks on the peaks and the end of
the panel overhanging the end of the building 11” or 5” (see notes above). You may want to clamp the panel in place
while installing the screws. With the panel lined up with all your marks, attach the panel to the first frame section with
painted #12 x 3/4” self-drilling screws with rubber washers about 1” above the major ribs. Do not install screws above
the edge ribs at this time. You will be sliding the lower panels under the edges of the panels above.
Before you install screws in the second frame section, check to see that it is square with the first section. Take a meas-
urement between the frame sections at the base rail and transfer that dimension up to the peaks. Now, install screws in
the second frame section. The other end of the panel should line up with the back of the third frame section for 10’ panels
with an 11” overhang, the forth frame section for 14’ panels with a 5” overhang. Do not install screws into the third/forth
frame section at this time.
Run a strip of Butyl Caulk Tape across the end of the panel 1” from the end as shown below. Let a little bit hang over
the edges.
PAGE 23
VIEW FROM THE LOW END OF THE CARPORT
© MSMP INC. 1-4-05
BUTYL CAULK TAPE
1”
17 1/8” FROM
END OF PEAK
11” OR 5”
OVERHANG
NO SCREWS ABOVE
EDGE RIBS OR INTO
THIRD/FORTH FRAME
UNDER LAP EDGE
PAINTED #12 X 1”
SCREW WITH RUBBER
WASHER
11" or 5”
Bottom view of panel
STICK FOAM
CLOSURE (P)
TO BOTTOM
OF ROOF
PANELS AT
ENDS OF
BUILDING.
FOAM CLOSURE STRIPS ON BUILDINGS:
If you will be enclosing your carport to create
a building, install inside foam closure strips
between the frame and the roof panels at
both ends of the building.