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B. FLUSH PITCHED ROOF INSTALLATION
1. TILED ROOF ATTACHMENT
For tiled roofs, carefully plan the location of the manifold, frame tracks and plumbing in order to minimize
the number of tiles that need to be removed (and returned into place). Tiles may have holes cut to allow
the roof straps or bolts to pass through. Any holes must be covered and/or sealed with standard roofing
materials to avoid leaks.
For tiled roofs, 2’ / 60cm or 3’ / 100cm
long roof attachment straps can be
used (2 per front track). One end of
each strap should be secured to the
underside of the frame front tracks
using bolts and nut lock assemblies;
the other end secured to structurally
secure roof framing using 0.3” / 8mm
diameter or thicker stainless steel
bolts or screws. Please ensure that
roof-anchoring points are of suitable
structural integrity. Once the upper
straps are attached and tightened,
adjust the bottom straps to ensure
that they too are providing support to
the frame.
2. CORRUGATED IRON ROOF
ATTACHMENT
For installation on a corrugated iron
roof, a thick rubber pad can be used
to separate the frame from the roof and also seal the drill hole. Use a standard corrugated iron roofing
screw to secure the collector front feet directly to the roof’s wooden frame (additional holes may need to
be drilled in the frame front track to properly secure the collector).
If the roofing screw is zinc galvanized steel, it should have a rubber/nylon washer, to prevent direct
contact with the stainless steel frame. The rubber pad will form a tight seal against the roof, preventing
any water ingress. Addition of some silicone sealant beneath the pad and inside the hole is advisable to
help waterproof the installation. This mounting method is also suitable when attaching a low or mid angle
solar collector.
3. ASPHALT SHINGLE ROOF
For installation on an asphalt shingle roof, the same corrugated roof method outlined above can be used,
the lone difference being that an extra thick rubber pad should be used to compensate for collector feet
sinking into the asphalt.
C. LOW PITCHED ROOF INSTALLATION
When installing a tilt/angled collector on a low pitched roof, follow the attachment instructions above. The
HTP Evacuated Tube Solar Collector’s horizontal supports easily slide along the manifold arms and legs
into the proper installation angle. Minimum pitch must be no lower than 25
o
for panels to perform properly.
Figure 16 – Collector Orientation
Summary of Contents for HP-30SC
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