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Car park flooring and deck coatings

Car park floors must keep water out of the slab, grip tyres and feet, and stand up to UV on open decks. Specify Deckproof PU-2-SL — certified to AS 4654.1 as a Class III trafficable membrane — for decks over occupied space, and Deck-Seal (WE70 clear or SF25 coloured) or PU100 for basement and ground-level floors.

What the floor has to handle

Water
rain, ponding and car-wash water over occupied space
Traffic
tyres turning on ramps, point loads
Sunlight
open decks need a UV-stable finish
Slip
ramps and pedestrian walkways
Markings
a surface ready for line marking

5 products

Standards that apply

Standards that apply — Car park flooring and deck coatings
StandardTitleWhat it means for the floor
AS 4654.1-2012Waterproofing membranes for external above-ground use — MaterialsClasses a membrane by its extensibility (I–III). Deckproof PU-2-SL is certified as Class III for non-exposed external above-ground waterproofing.
AS 4654.2-2012Waterproofing membranes for external above-ground use — Design and installationHow the membrane is detailed and installed: falls, upturns, terminations and drainage.
AS 4586-2013Slip resistance classification of new pedestrian surface materialsClasses a new floor: P0–P5 on the wet pendulum, R9–R13 on the oil-wet ramp, A–C for wet barefoot areas. Ask for the class the area needs, not just "non-slip".
AS/NZS 2890.1:2004Parking facilities — Off-street car parkingCar park layout, ramps and markings. It does not rate coatings; the membrane and slip standards do.

Which product holds which certificate: certifications and approvals.

FAQs about car park flooring and deck coatings

Does a car park need a waterproofing membrane?

Where the deck is over occupied space — shops, offices, apartments — yes: an AS 4654.1 membrane under a wearing course. Basement and on-ground slabs usually need a sealer or coating instead.

What is Class III?

The most extensible class of AS 4654.1 membrane; Deckproof PU-2-SL elongates 305 % at 23 °C, so it bridges cracks that open and close.

Is line marking part of the system?

The finish is ready for line marking. Layout and markings follow AS/NZS 2890.1; ask us about paint compatibility.