Fastensol Roof Hook for Slate (Landscape) TH04A — Stainless Steel Solar Mounting Hook

The Fastensol Roof Hook for Slate (Landscape) — TH04A is a slim, flat-profile stainless steel hook engineered specifically for mounting solar panel rails on natural slate roofs in landscape orientation. Its low-profile arm slides beneath the slate without lifting or cracking the tile, preserving the roof's waterproofing and structural integrity — a critical requirement on delicate slate coverings. The hook uses a sturdy 6mm stainless steel bracket, fixed through one slate directly into the rafter beneath, with the slate above replaced over the fixing point so the roof remains weathertight. For added protection, Fastensol recommend using it with CT1 sealant, and a lead soaker is advisable where the bracket sits close to the edge of the covering slate. Stainless Steel Material Landscape Orientation 6 mm Bracket Thickness 60 m/s Wind Load 2.0 kN/m² Snow Load 12 yr Product Warranty Slate Roof Installation Care Natural slate is a fragile roofing material and can crack or fracture if handled roughly or point-loaded incorrectly during installation. Fastensol recommend using CT1 sealant around the hook penetration point, and a lead soaker where the bracket sits close to the edge of the covering slate, to maintain a fully weatherproof roof. Professional Installation Required Installation of Fastensol mounting components must be carried out only by professionally trained installers. It is the installer's responsibility to verify the structural integrity of the roof or substructure the system is fixed to — rotten, rusted, undersized, or excessively spaced rafters are not suitable and installation on such structures will void the warranty. Key Features Slim, Low-Profile Design The flat-profile arm is engineered to slide underneath slate tiles without lifting or cracking them, preserving the tile's natural lay and the roof's watertight seal. Direct Rafter Fixing Through the Slate The 6mm stainless steel bracket is fixed through one slate directly into the rafter beneath, giving a solid structural connection rather than relying on the slate itself for support. Corrosion-Resistant Stainless Steel Built entirely from stainless steel for long-term durability against the weathering and moisture exposure typical of slate roof installations. Discreet, Heritage-Friendly Finish The low, flat profile keeps the hook largely hidden beneath the slate line, making it well suited to heritage and period properties where a discreet solar installation is important. Landscape Orientation Support Designed specifically for arrays mounted with panels in landscape orientation, positioning the mounting rail correctly for this layout on slate roofs. Weatherproof Detailing Used together with CT1 sealant and, where needed, a lead soaker, the TH04A maintains a fully weathertight roof around each fixing point. Technical Specifications Identification Product Code TH04A / F-TH04A Manufacturer Xiamen Fasten Solar Technology Co., Ltd (Fastensol) Orientation Landscape Tile Compatibility Suitable Roof Type Natural slate roofs Recommended Sealant CT1 sealant (recommended) Additional Weatherproofing Lead soaker recommended near slate edges Material & Construction Material Stainless steel Bracket Thickness 6mm Fixing Method Through one slate, direct to rafter, with wood screws System Ratings Maximum Roof Slope 60° Wind Load Up to 60 m/s Snow Load 2.0 kN/m² Maximum Building Height 20 m Certification MCS 012 Warranty Product Warranty 12 years material · 5 years finish Frequently Asked Questions Will fitting this hook damage my slate roof?When installed correctly, the TH04A's slim, flat profile is designed to slide beneath the slate without lifting or cracking it. The bracket passes through one slate directly into the rafter, and the slate above is replaced over the fixing point — following Fastensol's installation guidance and using CT1 sealant is important to maintain a watertight result.Do I need any sealant or additional flashing for this hook?Fastensol recommend using CT1 sealant around the fixing point for added weatherproofing. Where the bracket sits close to the edge of the covering slate, a lead soaker over the bracket is also advisable to ensure the roof remains fully watertight.What is the difference between TH04 and TH04A? TH04 is the portrait orientation slate roof hook, while TH04A is the landscape orientation version — otherwise both share the same slim stainless steel design and fixing method for natural slate roofs.How thick is the bracket, and why does that matter on slate?The bracket is 6mm thick stainless steel — substantial enough to carry structural loads while remaining slim enough to sit beneath a slate tile without excessive lift, which is critical for maintaining the roof's weatherproofing on a fragile slate covering.Can I use this with mounting rails or clamps from another brand? No. Fastensol components are engineered as a matched system, and mixing Fastensol hardware with mounting equipment from other suppliers is not supported and will void the warranty. Always use genuine Fastensol rails, clamps, hooks and splices together as a complete system.What warranty does this product carry?Fastensol backs this product with a 12-year product warranty against defects in material and workmanship, plus a 5-year finish warranty on the anodised coating, from Xiamen Fasten Solar Technology Co., Ltd. The finish warranty is void if the component is not cleaned and maintained in line with AAMA 609 & 610-02 guidance for architecturally finished aluminium, and the full warranty is void if the product is modified, installed incorrectly, or mixed with another manufacturer's mounting hardware.