Allproof Provides Custom Level Threshold for Luxury Car Showroom

Car showrooms present a tricky scenario; the showroom needs to be presentable with high quality flooring and all the fittings expected when presenting luxury consumer items. However, the vehicles need to be regularly moved between the external forecourt and internal showroom with large doors creating an indoor-outdoor flow. These large openings combined with load class requirements mean that a standard E2 compliant threshold drainage system that has been designed for foot traffic may not be up to the task, and channel systems designed for heavier load requirements are not compliant due to level threshold details such as the required 12mm drip-line along the joinery. Factor in large sliding doors with exposed mechanical runners and a fully level threshold can become a complex task.

Thankfully Wingate Architecture contacted Allproof early on in the process and developed the perfect solution.

Allproof were engaged during the planning phase of Archibald & Shorter’s latest showroom in Wairau Road, North Shore Auckland. Once given a brief, Allproof developed a custom solution utilising components from one of their most popular products, the Perimeter Drain. Allproof created a heavy duty supporting system with the Perimeter Drain preformed channel, combined with a slip resistant stainless steel grate load tested to AS3996. This provided an easy to install, low maintenance fully compliant solution. Allproof also custom manufactured a removable stainless steel cover to hide and protect the mechanical door sliders, providing a seamless entry into the building spanning over four metres. This system creates an aesthetic architectural design, allowing wide openings and large walls of glass joinery to display a stunning collection of vehicles.

Perimeter Drain

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The Perimeter Drain presents an innovative and premium solution for simplifying level threshold drainage.

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NZ-Owned Business

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Allproof Level threshold solutions are designed to allow level entry to the building and be fully compliant with New Zealand standards set out in Building Code E2, External Moisture
Allproof supplies a range of E1-compliant pits and sumps that the Perimeter Drain can be connected to in order to complete the system

Design:

The grate system takes up the varying reveal between joinery overhang and slab
The grates come in a selection of materials including Glass Filed Polymer (GFP), Cast Iron and Stainless Steel that can be used to create consistency with other surface drainage in the same project (Allproof Polymer Concrete)
The grate selection accommodates for a variety of requirements including economy, performance (grate open area), safety (heelproof and slip rating) and customisation (aesthetics).

NZBC E1 Surface water:

• E1.1/E1.2: Allproof level threshold drainage systems have been designed to safeguard people from injury or illness and other property from damage caused by surface water.

• E1.3.1/E1.3.2: When correctly selected for the scenario and installed in line with Allproof literature, these systems will protect property from surface water.

• E1.3.3: When selected and installed correctly, Allproof level threshold systems will convey water to an appropriate outfall using gravity, avoid the likelihood of blockages, provide access for maintenance and clearing blockages, and avoid the likelihood of damage from superimposed loads or normal ground movements.

NZBC E2 External moisture:

• E2.7.3/Fig.17B: Allproof level threshold systems provide level entry as per Figure 17B.

• E2.7.2.1: Allproof level threshold systems comply to all clause requirements regarding-

> Channel size,

> Ability to install fall in the base of the channel,

> Outlet locations and details available for sump,

> Grate independently supported of door frame,

> Removable grate,

> Designed for appropriate load class requirements,

> Grate perforations that prevent wheelchairs and mobility aids becoming trapped,

> 12mm continuous gap.

B2/AS1 Durability: B2.3.1 - Allproof level threshold systems meet the requirements of B2.3. (b) not less than 15 years and (c) not less than 5 years.

AS 3996 Access covers and grates: Allproof surface water drainage systems have been designed to comply to the specifications and testing set out in AS 3996. By complying to this standard, Allproof products are made to improve the performance of trafficable covers and grates in vehicular and pedestrian areas, thus reducing the risk of injury or loss through damage.

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