The Fastensol TH04 slate roof hook is a portrait fixing component for Fastensol GS Roof rail systems on compatible pitched slate roof installations.

• SKU and manufacturer article both listed as TH04
• Slate roof hook for portrait PV mounting layouts
• Fastensol hook guide identifies TH04 for slate tile use
• Verified hook geometry includes 200mm b, 120mm c, 30mm e, 30mm f and 5mm g
• Used with Fastensol GS rail on suitable pitched roof systems
• Fastensol GS Roof system data lists 60m/s wind load and 1.4kN/m² snow load
• Fastensol installation guidance states installation is for professionally trained installers

Why select TH04 for a slate roof?

TH04 is the Fastensol hook option for slate tile use in this group. The SKU and manufacturer article are both TH04, which makes the product straightforward for installers matching a roof hook guide, component schedule or quote line.

Slate roof work needs a more careful fixing decision than a simple product swap. The roof covering, substrate, weathering route and rail layout should all support the selected fixing method before TH04 is added to the bill of materials.

How is TH04 different from A-Slate?

TH04 is a hook-based slate fixing. A-Slate is a separate slate bracket assembly with its own MCS 012 reference and certified component list. Both relate to slate roof solar mounting, but they should stay as separate product pages because they suit different design routes.

Use TH04 where the design calls for the Fastensol slate hook. Use A-Slate where the project specification calls for the dedicated bracket assembly, listed gasket, spacer, sealant and fixing components.

How does the hook work in the rail system?

TH04 provides the roof connection point for Fastensol GS rail. The hook is fixed to the suitable roof structure, the rail is connected to the hook, and the framed PV module is then secured to the rail with compatible clamps.

The installer should confirm rail span, module orientation, end clamp positions, splice locations and rail end finishing before ordering. The hook should be considered part of the full GS Roof assembly rather than a standalone roof fixing.

What installation checks matter?

The installer should check roof pitch, slate condition, timber quality, fixing locations, wind action, snow action and weathering route. Fastensol guidance shows hook installation with wood screws and notes a minimum of two screws.

Slate disturbance, cutting and replacement work should be planned before the array is set out. For related parts, browse Fastensol GS Roof or the wider solar mounting systems range.

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