Installing the water heater.
Roof Survey
NOTICE: A roof in poor condition may need replacement before the system is installed.
Record the following on the checklist:
•The type of roofing material (tile, shingle, tar & gravel, metal, etc.).
•The condition of the roof. Note any repair requirements
needed prior to installation.
•Draw diagram (top view) as shown below, of installation area. Mark location of the system and
•Using the table below, select the appropriate supporting structure for your solar system.
Roof Type | Installation Type | Supporting Structures | |
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All types except sturdy tiles and | With pitch (standard) | 4 runners and Collector Extrusion | |
metal | |||
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Sturdy tiles or metal roof with | With pitch (metal / sturdy tile) | Collector Extrusion only | |
No obstruction of water flow | |||
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All types | Side pitch | 2 runners + Frame | |
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All types | Reverse pitch | 2 runners + Frame | |
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All types | Flat / shallow pitch | 2 runners + Frame | |
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Roof Support Requirements
The system weighs up to 1089 lbs (80 Gallon System) when installed and filled. It may not be necessary to provide additional support but you must inspect the roof support system to determine if additional bracing is needed.
Record the following on the checklist.
!CAUTION: If the following modifications do not apply to the installation site, an engineer must specify support modifications.
Conventional Roof Modifications;
•Locate the load bearing wall beneath installation site (refer to building plan if available) and indicate on the
•Review Figure at the top of the following page and select correct supports.
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