Guide

Splash-water protection without a gravel strip

Splash-water protection is mandatory, the gravel strip is not. Which routes there are.

In short

Splash-water protection at the base can be achieved without gravel too – walkable, barrier-free and durable.

Why the base must be protected

Splashing rainwater stresses the base. The waterproofing standards assign this area to water-exposure class W4-E and require a sufficiently protected base above ground level.

The alternatives to gravel

Possible options are a water-draining surface with a fall away from the base, paving with a narrow joint or – the most maintenance-friendly – a walkable grating over a ventilated channel. The latter keeps the base dry while remaining walkable.

The Sobekon® solution

Sobekon® carries the water away in a controlled manner via the rear-ventilated channel beneath the grating. The base stays protected and the rear ventilation stays clear – without loose gravel and without a step.

Standards-compliant

Standards & regulations

DIN 18533 (W4-E): Splash-water and ground-moisture area at the wall base – seal and drain in a controlled manner.

Sources

DIN 18533 – Waterproofing of soil-contact components — DIN Media
DIN 68800-2 – Constructional timber protection — DIN Media
Wood protection – structural measures (holzbau handbuch series 5, pt. 2, no. 2): base detail with grating over a channel — Informationsdienst Holz / Holzbau Deutschland-Institut e. V.

Free installation plan

We plan your connection – free of charge

Send us your measurements: we plan your barrier-free facade connection, include the matching installation plan free of charge and tell you the price – every grating with dimensions, cut-outs and price per item.

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