AliDeck Decking Board Testing Slip Resistance Data and Results

AliDeck is committed to manufacturing products that are in compliance with and exceed all relevant safety legislation. This is part of our ongoing drive to deliver excellent aluminium decking products to the market and to ensure absolute peace of mind for all of our clients and trade partners.

Accordingly, AliDeck have performed Slip Resistance testing on our whole range of aluminium decking boards. Utilising a calibrated certificated portable Pendulum instrument, testing was conducted in accordance with BS7976 part 2 in both wet and dry conditions. With a total of eight measurements being made in three different directions, all AliDeck decking boards were found to pose a “Low Risk” for slips in all conditions.

How the result is calculated

Discounting the first three Pendulum swings, a mean figure was calculated from the final 5 swings in each direction and wet and dry conditions to give a final score out of 100, with 100 being the highest possible score*. Slip Risk ratings were then awarded according to the adjacent table.

PTV	Slip Potential
<25	High
25-35	Moderate
>35	Low

A score of less than 25 represents a High Slip Risk, 25-35 represents a Moderate Slip Risk, and a score greater than 35 represents a Low Slip Risk. All AliDeck decking boards scored greater than 35 in all conditions, earning Low Slip Risk rating.

Detailed Slip Resistance test result data for each board is found in the following tables:

Senior & Junior Balcony Board (Standard Sand & Grey)

DIR’ N	CONT’ N				1	2	3	4	5	MEAN	RISK
A	DRY	100	100	100	100	100	100	100	100	100	Low
A	WET	85	86	85	85	84	84	83	84	84	Low
B	DRY	76	79	78	78	77	77	76	77	77	Low
B	WET	48	47	46	46	45	44	44	45	45	Low
C	DRY	99	99	98	97	97	96	95	96	96	Low
C	WET	59	58	57	56	55	54	54	54	54	Low

Senior & Junior Balcony FLAT Board (Standard Sand & Grey)

DIR’ N	CONT’ N				1	2	3	4	5	MEAN	RISK
A	DRY	70	68	67	67	67	67	67	66	67	Low
A	WET	44	41	39	39	39	38	38	38	38	Low
B	DRY	65	64	64	64	64	64	63	62	63	Low
B	WET	44	44	39	39	38	38	38	38	38	Low
C	DRY	66	65	64	64	64	63	62	62	63	Low
C	WET	50	47	45	45	45	44	44	44	44	Low

Standard Interlocking Board (Standard Sand & Grey)

DIR’ N	CONT’ N				1	2	3	4	5	MEAN	RISK
A	DRY	100	100	100	100	100	100	100	100	100	Low
A	WET	85	86	85	85	84	84	83	82	84	Low
B	DRY	76	79	78	78	77	77	76	77	77	Low
B	WET	48	47	46	46	45	44	44	44	45	Low
C	DRY	99	99	98	97	97	96	95	97	96	Low
C	WET	59	58	57	56	55	54	54	53	54	Low

Further information on the performed Slip Resistance testing results is available in Slip Resistance Data Sheets from the testing organisation, Advance Group, on our technical downloads page: https://www.alideck.co.uk/downloads/

*Please note that the testing software will only record a maximum score of 100, when the pendulum is stopped (due to maximum friction) 100 is the given score that can be achieved with the measuring instrument used.

Macro and Micro Roughness Value Test (Rz) In accordance with BS7976

Surface Microroughness is a component of surface texture, it is generally determined by looking at deviations from the normal (mean line) profile of the surface. If these deviations are large the surface is rough, if they are small the surface is smooth. Using a tool with a stylus to measure these variations, a Rz value is able to be calculated. The Rz parameter is the mean value of the maximum peak to valley height of the profile within the sampling lengths.

This test has been performed to assess the Macro and Micro Roughness (Rz value) of the surface of the coating used on the AliDeck Aluminium Decking Range in order to ascertain Slip Potential against the following values: