SUNSTAR RESIDENTIAL INSTALLATION MANUAL
21
COLLECTOR ROOF MOUNTING – SHINGLE ROOFS
(CONTINUED)
6.
Mounting using the RoofTech RT Mini Mount (See RoofTech RT-Mini installation
manual for specifics on mount placement and roof sealing specific to this mount.)
NOTES: Mounting using RoofTech RT Mini’s may be used on asphalt shingle or metal
roofs with an underlying wood deck and structure. Metal roofs shall be maximum
20 Ga. with at least 4-1/4” x 4-3/4” flat area flush with the roof deck for mounting.
a.
Snap a chalk line across the roof or rack where you
want the top edge of the collectors to be located.
b.
Locate and mark the locations of the roof trusses along the first chalk line made.
c.
If mounting into trusses, position the first RT-Mini on the chalk line and centered over
a roof truss (Fig. 6-B1). If deck-mounting, position wherever the first Mounting Pad will be
located (Fig. 6-B2).
d.
Peel off the protective paper and firmly press the RT-Mini onto the roof
making sure the butyl sealant has adequate contact with the roof surface.
Slide the stainless steel ¼-20 HWH bolt into the top slot in the RT-Mini (Fig. 6-A).
e.
If mounting into the roof truss install the (2) included M5 x 60 mm (#10 x 2.375”) wood
screws through the two holes in the center of the mount. If deck mounting, then (5) screws
are required with (4) on the outer holes one in a center hole of the mount (Fig. 6-C2).
•
Deck mounting requires that the deck be minimum
APA-rated 7/16” OSB or 15/32” plywood.
•
For metal roofs pre-drill screw locations with 1/8” drill bit.
f.
Ensure that the screws are properly tightened and that the rubber
washers on the screws are compressed. Do not over tighten.
g.
Apply roof sealant to the top and each side edge of the brackets (Fig. 6-D).
h.
Once the RT-Mini is anchored into the roof attach the Mounting Pad by placing it on top
of the RT-Mini with the stainless steel ¼-20 HWH bolt coming up through the hole. Fasten
the mount by tightening a stainless steel 1/4-20 HWH nut onto the bolt (Fig. 6-A).
