7
TABLE 3.
LATITUDE
25°N
30°N
35°N
40°N
45°N
50°N
COLLECTOR TILT
35°
40°
45°
50°
55°
60°
Figure 4 Dimensions
A B A B A B A B A B A B
FLAT
29”
96”
33”
113”
37”
145”
41”
145”
44”
145”
48”
145”
5°
1/12
25”
83”
29”
93”
33”
113”
37”
132”
41”
133”
44”
141”
9°
2/12
22”
74”
26”
82”
30”
77”
34”
110”
38”
115”
41”
118”
14°
3/12
17”
66”
22”
72”
26”
82”
30”
92”
34”
95”
38”
98”
18°
4/12
14”
61”
18”
66”
22”
74”
26”
82”
30”
85”
34”
87”
ROOF
23°
5/12
10”
58”
14”
60”
18”
66”
22”
72”
26”
74”
30”
77”
PITCH
27°
6/12
7”
58”
11”
58”
15”
61”
19”
66”
23”
68”
27”
70”
30°
7/12
4”
58”
8”
58”
13”
58”
17”
62”
21”
65”
25”
66”
34°
8/12
0”
58”
5”
58”
9”
58”
13”
58”
17”
60”
22”
62”
37°
9/12
0”
58”
3”
58”
7”
58”
11”
58”
15”
58”
19”
58”
40°
10/12
0”
58”
0”
58”
4”
58”
8”
58”
13”
58”
17”
58”
43°
11/12
0”
58”
0”
58”
2”
58”
6”
58”
10”
58”
14”
58”
45°
12/12
0”
58”
0”
58”
0”
58”
4”
58”
8”
58”
13”
58”
DIMENSIONS A AND B
ARE DEFINED IN
F
IGURE
4.
AND
ARE
DESIGNATED
IN
INCHES
Fig. 5
The solar collector should be mounted on the roof
in accordance with these general principles:
The most important structural consideration is to
securely anchor the solar collector and the Solar
Strut mounting hardware to the structural
members of the roof with stainless steel hanger or
lag bolts. The solar collector must be attached to
the mounting hardware as detailed in Figures 5-
12. (Note: The drawings in this manual detail
mounting hardware for the SunEarth, Inc., Empire
series collector. Drawings for Imperial series
collectors are available upon request).
The collector must be raised from the roof surface
to allow for rainwater and debris to pass under the
collectors and for proper ventilation of the roofing
material. There should be at least 1 1/2" of
clearance between the roof surface and the
bottom of the solar collectors.
In selecting mounting hardware and fasteners it is
extremely important to avoid galvanic corrosion
resulting from the direct contact of incompatible
metals. Use of SunEarth, Inc. anodized aluminum
"Solar Strut" mounting hardware and stainless
steel lag or hanger bolts, lock washers and round
washers is recommended. In climates subject to
severe winters or high humidity, the use of
galvanized fasteners is prohibited.
Preserving the integrity of the roof membrane is
the most important roofing consideration. Ensure
that all roof penetrations required to plumb and
mount the solar collector are properly flashed and
sealed in accordance with standard roofing
practices. Tremco "POLYroof" is the rec-
ommended elastomer for sealing roof penetra-
tions. Henry Co. 204, 208 or 209 roof mastic or
Dow Corning Glazing Sealant also are acceptable
sealants.
If the region is subject to hurricane conditions,
additional steps may be required to secure the
collector and mounting hardware to the structural
members. In certain areas of the country, local
building codes may require collector wind load
testing or prescribe specific mounting procedures.
Consult your local building department.
7
