This training will cover the specific mounting systems used for each type of roofing material. Some roof types can accommodate a variety of mounting options, which we’ll review in detail.
| Roof Substrate | Typical Max Spacing (Low Wind/Snow Zone) | Spacing Near Ridge and on First/Last Mount in a Row (Zone 3) |
|---|---|---|
| OSB (no rafters) | 3 ft | 2 ft |
| Plywood (no rafters) | 3.5 ft | 2 ft |
| Plywood + Rafters | 4 ft | 2 ft |
Asphalt shingle roofs are our most commonly installed roofs we will work on in BC. They come in many different colors and patterns but they all will have one of two mounts ****
RT Minis will always be our first choice for a mount when working on asphalt shingle roofs. These mounts are installed directly over the shingles and have a layer of silicon roofing sealant applied on the top and sides of the mount.
Kinetic flashing mounts are less preferred by our installation team but provide a sleek installation. The top of the flashing is installed underneath the above shingle and must be screwed into a rafter or truss.
Standing seam roofs have the widest variety of mounting types. When inspecting a standing seam roof it is important to confirm the seam profile by measuring the width and the height of the seam and including a photo of the side view.
The most common mounting type we see for a standing seam roof is an S5N clamp. This solar mount does not penetrate the roof as in clamps down on the seam.
As there is a different clamps used for each seam profile, it is important to review the site inspection photos and verify that the clamp being used matches the seam profile. S5! has many different clamps for different roofs: