Structural Tip: Deck Mounting Approval Requirements
Many residential solar installers prefer deck mounting, rather than rafter mounting, because attachment points are easier to locate when deck mounts are used. However, deck mounting has limited applications, and the approval requirements vary. To avoid equipment modifications, consider the following before choosing deck mounts:
1. Deck mounts can only be approved for installation to rated sheathing (Plywood or OSB),as opposed to lumber or plank sheathing.
2. For wood decking, deck mounts require a minimum of (4) #10 x 2" Wood Screws. If the deck is metal, please refrain from using deck mounts.
3. For flat roofs (pitch < 10 degrees) we recommend:
ECO-44R-NDD
RT Mini
Unirac FlashLoc RM
U-Anchor
OMG Power Grip
Or similar which can accommodate at least (4) fasteners
4. For pitched roofs (pitch >10 degrees), we recommend:
RT Mini
Unirac FlashLoc DUO
Splice Foot XL (with (4) #12 Wood Screws, for wood decking)
Or similar which can accommodate at least (4) fasteners
For questions regarding our structural services, please email support@creng.solar.
Electrical Tip: Matching Service Requirements with Main Breaker Size
Updated on 3/28/2024
We use the main breaker size, shown in a 3-line diagram, and the minimum service requirement, listed in a project's load calculations, to calculate the total allowable current (backfeed). If the min. service requirement is greater than the main breaker size, we place your project on hold so we can coordinate with you.
To streamline your projects, please check that the min. service requirement (right) is less than or equal to the main breaker size (left).
For questions regarding our electrical services, please email support@creng.solar.
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