Hotel Pool Surround Slip Testing

Why hotel pools require a different methodology

The standard pendulum slider (Slider 96) simulates a Four-S rubber heel — a shod environment. On a barefoot pool surround it gives misleadingly conservative results because human skin grips wet tile differently to rubber. For accurate barefoot risk assessment, two methods are needed:

• Pendulum with Slider 55 or 57 — harder rubber simulating dry/wet bare skin
• Barefoot ramp test (BS EN 16165 Annex A) — produces A, B or C rating

Together these provide both an in-situ measurement of the actual installed floor and a product-level rating that aligns with manufacturer specification documents.

Barefoot ramp ratings explained

Rating	Acceptance angle	Where used
A	12° minimum	Dry barefoot areas (changing room benches, dry parts of changing areas)
B	18° minimum	Wet barefoot areas (showers, pool walkways, surrounds with dry foot transition)
C	24° minimum	Sloped wet areas, pool steps, pool ladder approaches

UK pool design guidance typically calls for Class B as a minimum for the pool surround itself, with Class C around steps and inclines.

Common findings on hotel pool surrounds

Across the hotel pool testing we deliver, recurring issues include:

• Polished natural-stone surrounds that look luxurious but achieve barefoot Class A only — below the B minimum
• Tile installations where the original Class B has worn down through repeated chemical cleaning
• Step nosings that have been replaced with smoother material than originally specified
• Transition zones from changing area carpet to wet tile where the joint is itself a slip risk

Spa, hydrotherapy and Jacuzzi surrounds

Spa and hydrotherapy zones often feature heated benches, salt-water plunge pools, and steam-room transitions that introduce additional contaminants beyond chlorinated pool water. Slip data for these areas should be considered alongside the pool plant's water-treatment regime, since saline and salt-chlorinated environments degrade some surface treatments faster than mains-fed pools.

What hotel groups instruct us to do

For multi-property hotel groups, we frequently provide:

• Pre-acquisition pool-surround due diligence on properties being purchased
• Annual periodic testing as part of brand-mandated risk management programmes
• Post-renovation testing to verify a refurbished pool surround meets specification
• Forensic testing following a guest slip incident