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Roof Condition
Roofs should be evaluated and confirmed to be able to handle the additional live and dead loads of adding a PV system.
Roof age should be evaluated to determine the useful life of the roof.
Customers are financially responsible for the cost of removing and reinstalling their system if and when they need to repair or replace their roof during the contract period. The customer should be made aware of the current condition of their roof and expected number of years left in their roof. This will help inform the financial decision of whether they would like to re-roof now or in the future.
Consult with a professional roofer on the current condition and expected life of a potential customer’s roof when necessary.
If a roof is reported to be within 10 years of the end of its useful life, based on customer provided information regarding last reroof date and roofing material warranty, a re-roof should be pursued.
If the roof appears to have less than 10 years of useful life but the customer wants to move forward without a reroof, an EverBright roof waiver is required.
Plywood or other permanent layer should be present above the rafters and below the roofing paper and roofing materials.
Low Slope Roofs:
Any roof under 2/12 (9.5 deg) is considered a low slope roof. A low slope roof should have the appropriate roofing material installed. TPO, EPDM, Foam, rolled comp, modified bitumen are acceptable. Any type of shingle is not acceptable due potential leaks. If you encounter a low slope roof that has shingles, it should be reroofed prior to installing solar. Proper low slope roof mounts should also be used for installation. Manufacturers data sheets and documentation should be reviewed to confirm mounts can be installed on low slope roofs.
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There’s no maximum tilt requirements, however, it is pretty rare to see anything over 45 degrees. There is a minimum tilt for shingles. Shingles should not be installed on anything less than 9.5 degrees. |
Prohibited Roof Types:
Wood Shake
Cal Shake
Slate Tile
Metal Shingle
Copper
More than 2 layers of composition shingles
Any home with faulty or defective roofing products. These can include, but are not limited to, Cemwood, certain Monier Tiles, Caland Hardy shake, and others that have had class-action lawsuits brought against them regarding asbestos and other issues.
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Image files (JPG or PNG) are preferred over PDFs. If PDFs are used, please put each photo in a separate PDF document (10 files max per photo sub-task).
M2 Photos
List of QA Pictures to be submitted at M2 | NOTES | ||||||
1.1 | Verify home address on-site
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If address number is not available, provide geotagged photo or photo of the front of the house that matches additional submitted photo of Google Streetview. | |||||
2.1 | PV module label
| Clear and legible photo of make/model and wattage of solar module installed. Photo should be taken on site, pre-installation. | |||||
3.1 | Each array in full view
| Photo(s) showing all arrays installed. Number and arrangement of PV modules should match Building Plan Set (BPS) and Live Project. If project is an add-on system, clearly indicate which modules are new vs existing. | |||||
4.1 | Zoomed-out photo of equipment wall
| Show all installed equipment mounted to wall. Typically, ONE photo may include:
Multiple photos may be needed if equipment is installed on different walls/locations. | |||||
5.1 | Energy storage
| Show all batteries, battery label(s), controllers and backup interfaces installed. | |||||
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List of QA Pictures to be submitted at M3 | NOTES | ||||||
6.1 | Mounting foot/attachment waterproofing
| Roof Mount Only
Depending on type, this may require multiple photos (ex: photo of sealant applied to mounting foot and fully installed) | |||||
7.1 | Electrical bonding method for all racks
| Verify array/racking is grounded. Show Equipment Grounding Conductor (EGC) bonded. (Copper wire bonded to mounting structure for all arrays.) | |||||
8.1 | Roof-mounted combiner/junction box, cover open (see all wires and connections)
| Roof Mount Only
If no junction box used, clearly indicate this in the Building Plan Set (BPS). | |||||
9.1 | Conduit penetration/Over the edge transition
| Roof Mount Only
Show sealant on underside of conduit flashing. | |||||
10.1 | Wire management under/behind array
| No wires should be touching the roof or dangling behind the array. Typically taken from the edge of the array to show wire management under roof arrays (or behind ground mounts). | |||||
11.1 | Monitoring box dead front removed
| Show CT routing and breakers (commonly an Enphase combiner). | |||||
12.1 | Main Service Panel (MSP) dead front removed
| Show the wiring and connections inside of the service panel. If the Point of Interconnection (POI) is in a sub-panel, a photo of both sub-panel and MSP is required. | |||||
13.1 | Consumption monitoring (CTs) (must capture all home loads)
| Closeup of consumption CTs installed.
must capture all home loads. If placed in sub-panel, photo of main panel must be provided to confirm there are no additional loads not captured. Follow the manufacturer’s instructions if an existing system is in place to confirm proper consumption data is recorded.
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14.1 | Additional construction punchlist
| Show any additional photos confirming the installation and/or repairs including:
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15.1 | String inverter wiring box (show all wires and connections)
| No final electrical inspection For string inverters to verify all field made terminations/bonding/conduits entering/exiting the inverter enclosure. | |||||
16.1 | AC Disconnect cover open (show all wires and connections/bonding/fuses)
| No final electrical inspection | |||||
17.1 | Point of Interconnection (POI)
| No final electrical inspection
Multiple photos may be needed to show all components. | |||||
17.2 | MSP label
| No final electrical inspection Show label of MSP, if present. | |||||
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