Providing a Waterproofing Solution for Every Situation on This Seaside Home

With a site overlooking the Pacific Ocean and a vast expanse of open sky, Breamtail House by Studio2 Architects was designed to be one with the land. The idea was to create a place of balance within the natural environment and use the landscape for inspiration.

There was a desire for a type of synergy between light & dark and positive & negative, with the clients wanting their home to form ‘blades through and with the land’. This brief was envisioned by Studio2 Architects as a building with clean lines; a minimalistic design and contrasting colour tones.

Understanding the need for the house to be a certain shape that complemented the surroundings and optimised the site-specific requirements, the architects created a design that focused on horizontal lines and utilising available space.

Opting for a Nuratherm Warm Roof meant a low fall could be achieved and the opportunity for creativity with shapes could be explored. Studio2 pictured Breamtail House with a box-like silhouette that used the natural curves of the earth to draw the eye in. The low-pitched roof enabled the structure to have a distinct shape and create a statement from far away.

Wanting a colour that suited the Northland bush around the property, a slate green mineral chip finish was selected for the cap sheet. The muted green colour worked well with the dark cedar cladding and the interior oak walls.

A warm roof was specified to enhance the home’s thermal performance and provide long term energy savings. 70mm Enertherm boards with an R-value of 3.15 were used with the Nuraply 3PM double layer system, this build-up assists in regulating a building’s internal temperature and keeping it protected from the elements.

As the house was built partially into a bank, the lower levels needed to be protected from water ingress over time. The Nuraply 3PT/3PTM tanking system was therefore specified on the concrete slab, foundations and walls. The decks on the top level were also waterproofed as well as insulated due to them being directly above the lower level living space.

Surrounding the home and pool area multiple decks were designed to create a sense of indoor/outdoor flow and embrace the 360-degree views. Nurajacks decking pedestals were installed to support the tiles and create a level entry when entering the home.

The top-level decks were also skirted by gardens of native shrubbery. With a concise re-vegetation plan devised starting with plants near the house, a waterproofing membrane with a root inhibitor was required to stop roots growing into the building envelope. Nuraply 3PG was installed to combat underground penetration and maintain the waterproofing integrity of the home.

Waterproofing and warm roof installer: Auckland Waterproofing Ltd

Nuratherm Warm Roof System

Nuralite

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The Nuratherm system puts the insulation where it should be, above the substrate, to completely enclose the roof area with a highly efficient insulation blanket.

The Nuraply Nuratherm System has been appraised by BRANZ for use as an insulating roof on buildings within the following scope:

the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regards to building height and maximum floor plan areas; and,
on limited access flat roofs with concrete, timber or steel structural decks subject to specific structural design; and,
with roofs constructed to drain water to gutters and drainage outlets complying with the NZBC; and,
with roofs constructed to suitable falls (Refer Paragraph 15.3 and 15.4); and,
with no integral roof gardens; and,
situated in NZ3 3604 Wind Zones, up to, and including 'Extra High'.

The Nuraply Nuratherm System has also been appraised for durability and thermal performance as an insulated roofing system on buildings that are the subject of specific design with no building height restriction. Building designers are responsible for the building design and for the incorporation of the Nuraply Nuratherm System into their design in accordance with the declared properties and instructions of Nuralite Waterproofing Ltd.

In the opinion of BRANZ , the Nuraply Nuratherm System, if designed, and used, installed and maintained in accordance with with the statements and conditions of Appraisal No.732 (2012), will meet the following provisions of the NZBC:

Clause B2 Durability: Performance B2.3.1(b), 15 years. Nuraply Nuratherm System meet this requirement
Clause E2 External Moisture: Performance E2.3.1 and 2.3.2. Nuraply Nuratherm System meet these requirements
Clause F2 Hazardous Building Materials: Performance F2.3.1. Nuraply Nuratherm System meet this requirement and will not present a hazard to people
Clause H1 Energy Efficiency: Performance H1.3.1(a). The Nuraply Nuratherm System will contribute to meeting this requirement

Nuraply Nuratherm System is appraised as an Alternative Solution in terms of New Zealand Building Code compliance.

BRANZ Appraised

Nuraply 3PT/3PTM

Nuralite

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Nuraply 3PT Tanking System is a positive waterproofing system that is watertight immediately upon installation.

Nuraply 3PT(M)systems have been developed for positive long-term, low maintenance waterproofing of construction features such as:

Foundations
Basements
Lift Shafts and pits
Underslab

Nuraply 3PT(M) provides a robust watertight solution for areas where water is likely. The system can tolerate some hydrostatic pressure but specific design is required for areas of high hydrostatic pressure such as large building sites by the sea.

Based on expert opinion, verified by Auckland Council, Nuraply 3PT and 3PTM will meet the following provisions of the NZBC:

Clause B2 Durability: Performance B2.3.1(a), not less than 50 years performance expectancy.
Clause E2 External Moisture: Performance E2.3.3, roofs and walls shall prevent the penetration of water.
Clause F2 Hazardous Building Materials: Performance F2.3.1. Does not pose a hazard to humans.

Nuraply 3PG Green Roof System

Nuralite

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Green Roofs sit comfortably within the landscape and can bring nature into areas where concrete and asphalt have previously prevailed.

Green roof systems are equally applicable on office towers, discrete rural properties, hospitals or for podium areas above carparks
Because of the weight of a Green Roof system, specific engineering design is important

Green Roofs require special documentation when applying for building consent because of their nature
Nuralite advisors are happy to assist with any planning questions prior to submission to consent authorities
Green roofs can address concerns of neighbours where resource consent objections are raised

Nurajacks and Nurapads

Nuralite

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Nurajacks and Nurapads provide a solution to the requirement to 'float' a deck surface over a membrane deck.

For a high performance, fully warranted system, specify Nuraply 3PM waterproofing membranes with Nurajacks to support the tiles, pavers or decking
Ensure the system is braced against the surrounding cladding systems using Nuralite’s Tile Cladding Spacers

Building Code — meets Building Code requirements for floated decks over membranes
Council Standards — meets Council requirements for removable decking over membrane decks

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