How Sunhook
Actually Works
A rail-less, self-flashing solar mounting system that fits composite shingle, R-panel, and standing metal seam roofs — with zero pilot holes and total leak protection.
Rail-Less.
Self-Sealing. Faster.
Traditional mounting systems require cutting and transporting 6-foot rails to every job. Sunhook eliminates that entirely. Each mount installs directly to the roof deck — no rails, no extra labor, no wasted truck space.
No Rails to Cut or Transport
Skip 6-foot rail handling completely. Cases ship compact and arrive ready — no cutting, no staging.
Butyl Tape Self-Flash
Each mount seals on penetration. No caulk, no extra flashing, no leak points.
Minimal Components
50 mounts + T-clamps + L-clamps + screws + butyl tape. Everything in one case. Nothing extra to source.
18–20 Panels Per Case
Each case is engineered to cover a standard residential job. Order by the case or pallet for large projects.
Works on 3 Roof Types
Available in configurations for the three most common commercial and residential roof types.
Composite Shingle
The most common residential roof. Sunhook's standard mount installs directly through the shingle layer with butyl tape sealing every penetration automatically.
CompatibleR-Panel Metal
Common on commercial and agricultural structures. The R-Panel Sunhook clamps to the panel ribs — no roof penetration required at all.
CompatibleStanding Metal Seam
Premium commercial roofing. The Standing Seam mount clamps directly to the seam — zero penetrations, zero warranty void risk.
CompatibleSunhook vs. Traditional Rails
How Sunhook stacks up on the factors that matter most to installers.
| Feature | Sunhook | Traditional Rail System |
|---|---|---|
| Rails Required | None | 6ft rails per row |
| Roof Penetration Sealing | Butyl self-flash (automatic) | Manual caulk / flashing |
| Pilot Holes | None | Required |
| Components per Case | 4 items | 10+ items including rails |
| Panels per Case | 18–20 | Varies, more SKUs needed |
| Transport Volume | Compact case | Large / heavy rail bundles |
| On-Site Cutting | None | Rails cut to length on site |
| Free Installer Training | Yes (RE+ offer) | Typically not included |