MCS_012 3.0 CertifiedSolVe MountSolar Mounting for concrete interlocking tiles
One of the only Fire Safety compliant roof mountings. Airtight self extinguishing seal complying with MCS_012 3.0 for a future proofed installation.
Last Updated: January 2026
Key Takeaways
- Compatible with concrete interlocking tiles (Marley, Redland, etc.)
- Adjustment required: Raise the seal height for the thicker roof covering
- Mounting zone: 0-20mm below the overlapping tile
- Important: Avoid the join and channel to prevent water ingress
Installing on Concrete Interlocking Tiles
Concrete interlocking tiles are one of the most common roofing materials in the UK, covering millions of homes built from the 1960s onwards. Brands like Marley, Redland, and Russell make these durable, affordable tiles. The SolVe Mount uses a 28mm diamond core to create a precise opening in the tile or 'working area' to access the rafter. Our expansion seal expands when compressed, pressing outwards on the walls of the core hole and expanding beyond, creating a permanent watertight barrier. Forces are channeled directly to the rafter, ensuring the tile itself carries no load.
Understanding the interlocking design: Unlike slate or plain tiles that overlap , interlocking tiles have a channel and join system on one (left) side. This creates areas where water channels flow. For a proper seal, position the SolVe away from these features to avoid damming the channel. Solution due Q1 2026.
Positioning guidance: With a 0-20mm mounting zone below the overlapping concrete interlocking tile, position the mount on the flat tile surface away from the join and channel.
How to install:
CORE - 28mm diamond core to create your 'working area' to access the rafter.
DRILL - Pre-drill using the drill guide provided.
FIX - Screw in the fully assembled SolVe Mount. Raise the seal height for concrete interlocking tiles, tighten the nut to compress and expand the seal.
DONE - Your MCS certified, IPX8 rated concrete interlocking tile roof mount is complete.
The SolVe Mount ensures no load is transferred to the concrete interlocking tile roof and creates a watertight seal that will outlive the roof covering.
Making solar installation simple, fast and repeatable. No concrete interlocking tile expertise required.
Unshrinkable Technology
Maintains a permanent 34-36mm expansion above and below the roof covering, ensuring no retreat or seal degradation over time.
172-Year Longevity
ASTM D395B testing confirms ~30% compression set after 172 years, preserving elasticity and waterproof "springiness."
Load Isolation
Forces are channeled directly to the rafter. The seal expands radially, exerting pressure only on the core hole walls, not the concrete interlocking tile.
Triple-Seal Protection
Primary seal matches roof covering depth, augmented by upper and lower seals for 100% watertight confidence.
2D SolVe Mount Installation Animation
Close Up Installation Video Below
