Tactile Ground Surface Indicators
Advanced Group's Rubber Tactiles 900x600mm
|
| Available in 4 Colours
Advanced Group's Tactiles are available in 4 colours to meet the 30% luminance contrast
requirements of the Australian Standard AS/NZS 1428 part 4 Tactile Ground
Surface Indicators in both Hazard and Directional profiles.
Flexible, Easy to
Scribe and Install
Advanced Group's Tactiles are manufactured from premium polymeric materials and will
contour to any substrate. They are easily shaped with a
knife and are dimensionally stable so they won't move once
bonded to concrete, bitumen, timber, pavers and most other
substrates.
Retro-fit in
600mm x 900mm Format
Advanced Group's Tactiles are available in 600x900mm format, so installation is
completed by applying adhesive and sticking them down - 2
easy steps! The unique registered design of
Advanced Group's Tactiles deliver less joins, making moisture ingress and
Productailure less likely. No need for saw cutting and
recessing.
Advanced Group's Tactiles are easily cut to 300x600mm, 600x600mm and 600x900mm formats, so
installation has never been easier.
Additional can be purchased separately if required.
Optional mechanical fixings are
not required however they are offered as an optional extra in case you
are concerned about the corners potentially lifting and creating a trip
hazard however if you have used the adhesive correctly then mechanical
fixings are rarely ever required.
*Advanced Group can supply and install for between $350 - $400 per square metre. (*Conditions Apply) |
See below for more info
MORE INFO
But Yellow Tactiles On Concrete Comply….. Don’t They?
• November 14, 2017
We are all familiar with the now, common sight of Tactile Ground Surface indicators, (TGSI’s) on footpaths, at stairways, ramps, railway platforms. TGSI’s installed on the ground or floor surface are designed to provide pedestrians who are blind or vision-impaired with warning or directional orientation information.
TGSI’S are available in various materials, types, and colours. ‘Yellow’ would now appear to be most dominant coloured tile. Why ‘Yellow’. Yellow, as a primary colour, it says, ‘look at me’. It is bright and readily identified. This may be the reasons the reason we see so many of the current tactile installations employing yellow however it is a misconception that this colour is the correct for all installations.
All tactile installations are to are to comply with the requirements of BCA, Disability (Access to Premises – Buildings) Standards 2010, and Australian Standards AS 1428.1–2009 & AS/NZS 1428.4.1–2009. This includes achieving a minimum luminance contrast of:
30% contrast for TGSI tiles,
45% contrast for the single coloured ‘discrete’ TGSI cones and
60% contrast for two colours or materials used for ‘discrete’ TGSI cones.
Luminance contrast is defined in Australian Standard 1428.1-2009 as ‘the light reflected from one surface or component, compared to the light reflected from another surface or component’. It is not the difference in the colour or the colour contrast, but the difference in the light reflective values (LRV’S) of each colour.
As indicated above this is to be said of ‘Yellow’ Tactiles. They do provide colour difference between the tiles and background and do provide excellent contrast however they do not necessarily achieve the required LRV’s for both wet and dry installation requirements, as required to achieve compliance with AS 1428.1 & AS 1428.4.1 2009
There are many and varied products on the market today which will have different dry and wet characteristics. Since products absorb water at different rates and will take different lengths of time to dry, a single calculation of required luminous reflectance may be insufficient in some applications, particularly since
some sections of accessible paths of travel may be exposed to more wetting, and other sections to better drainage. therefore, for every installation separate measurements of luminous reflectance of the surrounds and TGSIs may need to be made.
Here at equal access we are provided with samples of various types and brand tactiles and to resolve the common question posed to us – “are these compliant’ we carried out a luminance reflectance value (LRV) test on yellow tiles against a concrete background surface. Concrete being a surface common in our everyday environment.
The LRV test, conducted as per the methodologies prescribed in AS 1428.1–2009 Appendix B and AS/NZS 1428.4.1–2009 Appendix E, confirmed our suspicion that some “yellow’ tiles whilst achieving the required 30% luminance contrast in a wet situation do not achieve the same in a dry condition. Thereby not achieving compliance for both installations.
A comparison test was carried out on a sample “white” tactile and whilst this would appear to not provide good contrast to the grey / concrete background it does provide the required 30% luminance contrast in both wet and dry installations.
Whilst we did not compare alternative background surfaces, in this instance, we chose the most common combination, whereby based on test results, consideration should be given to looking beyond ‘yellow’ for all installations where concrete is the background surface.
White may prove to be the new ‘yellow”.
Considerations
Please note the LRV readings for the concrete used as you can see by the photo are for ‘aged concrete’ and not new concrete.
The LRV for new concrete will measure a lot closer to the yellow reducing the contrast even more.
Why we like using white, is that it will comply when installed to new concrete and as the concrete ages the luminance contrast will increase.
BUT, and there is always a ‘But’, a regular maintenance program must be set up to ensure the TGGIs luminance contrast is maintained.
Note: In order to determine the luminance contrast between two adjacent building elements, the luminance reflectance value (LRV) of each building element needs to be obtained first.
Should LRV data not be readily available from the supplier or manufacturer, Luminos Consulting is experienced in conducting tests to determine the LRV of products samples – be it on-site for in situ products, or within our laboratory. Refer to the testing website http://luminos.com.au/
Advanced Group is mainly located in Keysborough (in South-East Melbourne, Victoria) however we ship all over Australia & sometimes we can ship Australia Wide for Free! For example:
1. *Free Shipping for *All online orders over $300 to Victoria, Australia. (*Bulky Orders over 999kg do not qualify)
2. *Any order to anywhere in Australia MUST have all items with the Prefix/es in the Product Codes starting with "Barr-" & the order is over $300.
3. *Any order to anywhere in Australia with all "numerical (only) Product Codes" & the order is over $300 (for example Product Code:12345).
Phone & Email orders will incur shipping costs at cost.
|
