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InteriorInterior
Andrew Smith
Andrew Smith
on Drainage Systems
Specifications Manager

Andrew is the specifications manager at Allproof Industries. He has developed into this role after six years’ experience managing the site based education and detailing of Allproof’s custom stainless steel solutions. This has given Andrew a broad base of site experience which helps in the battle of form and function in design. Andrew aims to be the reliable link between Architect and manufacturer to further Allproof’s wide product base.

21 October 2024

The Relationship Between E1 and E2

There has been a recent trend for council RFIs and requests from specifiers around threshold detailing vs surface water drainage, with confusion around the separation of their functions. Threshold drainage and surface water drainage are designed to perform two different tasks. Here I outline some of the commonly queried situations.

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23 September 2024

Flat Roofs and Internal Gutters: Controlling and Removing Rainwater

There are a range of approaches to how a low-pitched roof can be designed, it could include an internal gutter and/or drain into a rainwater head and the lowest point, or through a traditional roof drain outlet. 

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29 July 2024

How Can Selecting Local Simplify Tiled Bathroom Design?

NZ made solutions provide a premium finish and achieve the level of detail specified for projects such as luxury hotels in Auckland. Elements such as the integration with other systems, performance and the ability to customise are core features when selecting for tile floor shower channels.

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25 March 2024

What Type of Drain to Specify for My Commercial Kitchen Design?

This is a question that often gets asked. There are a number of options, and your product selection will depend on a few factors.

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26 February 2024

Surface Water Design Must Be Part of a Level Threshold System

When designing a compliant level threshold system we have to cover off all the requirements of Chapter 7.3.2.1 of E2/AS1.

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27 November 2023

Waste Water Management in Production Facilities

Waste water in processing facilities such as factories for food and beverage production, or even commercial kitchens, can often present unique requirements on the drainage systems.

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25 September 2023

What to Do With the Overflow?

In a membrane roof design, the overflow should have the same cross-sectional capacity as the primary outlet and give an early conspicuous warning to the building occupier that maintenance is required. But what about the weeping overflow, or one that activates prematurely?

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24 July 2023

Holistic System Specification

When selecting passive fire and drainage systems, early engagement to select the right solution can have a profound effect.

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24 April 2023

Big Rain, Big Drain

Consideration should be taken to futureproofing new developments to ensure surface water drainage is efficient and will prevent unnecessary flood damage to property. Our cities are becoming increasingly less permeable with a higher coverage of hard surfaces as they intensify.

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27 February 2023

Integrating Roof and Balcony Drainage

A look at the various ways of approaching roof and balcony drainage on high density residential projects. 

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