Torch-on waterproofing project Manukau Auckland — aerial view of Nuraply 3PM roof and decks on a new build

56 Haroto Street, Manukau, Auckland

Nuraply 3PM Torch-On Waterproofing: 500m² New Build in Manukau

A large-scale torch-on waterproofing project on a new build home in Manukau — a 420m² double-layer Nuralite Nuraply 3PM roof plus seven waterproofed decks, totalling approximately 500m². Completed June 2026.

~500m²

Total waterproofed

420m²

Double-layer roof

Decks waterproofed

Jun 2026

Completed

The Project

Your Subbie was engaged to carry out the full torch-on waterproofing package on a substantial new build home at 56 Haroto Street, Manukau. The scope covered a 420m² flat roof finished in a double-layer Nuralite Nuraply 3PM membrane, along with seven separate decks across the multi-level design — approximately 500m² of waterproofing in total.

Working on an active construction site, the waterproofing had to be sequenced around the builder's programme and scaffolding, with every deck and roof area detailed to protect the timber framing and living spaces below. Getting the membrane on early and correctly was critical to keeping the build weathertight and on schedule.

Location

Manukau, Auckland

System Installed

Nuralite Nuraply 3PM

Application

New Build Roof & Decks

Why Nuraply 3PM Was the Right Choice

For a roof and deck area of this size, we specified the Nuralite Nuraply 3PM torch-on system — a proven, double-layer bituminous membrane that is torch-fused into a single monolithic waterproofing layer. As a Nuralite approved applicator, Your Subbie is able to install Nuraply 3PM to the standard required for the manufacturer's warranty.

The double-layer build-up gives excellent redundancy and long-term durability, which is exactly what a large new build roof needs. The granulated cap sheet provides a tough, UV-stable finish, and the torch-on method allows us to fully seal complex details — upstands, box gutters, outlets and penetrations — across all seven decks and the main roof. It is a robust torch-on membrane system ideally suited to Auckland's climate.

Project Photos

Torch-on waterproofing Manukau — Nuraply 3PM membrane installed on a new build deck with timber balustrade — Completed Nuraply 3PM torch-on deck, fully sealed against the timber balustrade

Torch-on waterproofing Manukau — double-layer Nuraply 3PM membrane over new build deck substrate — Double-layer torch-on membrane laid across the deck substrate

Torch-on waterproofing Manukau — Nuralite Nuraply 3PM upstand detailing at wall junction — Membrane upstands dressed and sealed at the wall junctions

Torch-on roof waterproofing Manukau — Nuraply 3PM membrane on new build flat roof — Nuraply 3PM torch-on membrane across the new build flat roof area

Torch-on waterproofing Manukau — granulated Nuraply 3PM cap sheet finish on deck — Granulated Nuraply 3PM cap sheet providing a durable, UV-stable finish

Torch-on waterproofing Manukau — sealed deck membrane and drainage falls on new build — Correct drainage falls formed and sealed into the torch-on membrane

Torch-on waterproofing Manukau — Nuraply 3PM deck ready for tiling or decking overlay — Waterproofed deck ready for the following trades

Torch-on waterproofing Manukau — new build deck with heat-welded Nuraply 3PM seams — Heat-fused laps and seams across the deck membrane

Torch-on waterproofing Manukau — Nuraply 3PM membrane detailing around penetration — Careful detailing around a deck penetration

Torch-on waterproofing Manukau — completed Nuraply 3PM deck on multi-level new build — One of seven completed decks on the multi-level new build

Torch-on waterproofing Manukau — Nuraply 3PM membrane at deck edge and outlet — Membrane terminated cleanly at the deck edge and outlet

Torch-on roof waterproofing Manukau — double-layer Nuraply 3PM over large flat roof — Double-layer Nuraply 3PM covering a large section of the flat roof

Torch-on waterproofing Manukau — new build framing above waterproofed Nuraply 3PM deck — Waterproofed deck protecting the rooms and framing below

Torch-on waterproofing Manukau — Nuraply 3PM membrane and box gutter detail — Box gutter waterproofed and integrated with the roof membrane

Torch-on roof waterproofing Manukau — expansive Nuraply 3PM torch-on roof area — Part of the 420m² torch-on roof area under way

Torch-on waterproofing Manukau — Nuraply 3PM deck membrane with sealed upstands — Deck membrane with sealed upstands ahead of balustrade fixing

Torch-on waterproofing Manukau — completed Nuraply 3PM torch-on deck surface — Completed torch-on deck surface, watertight and hard-wearing

Torch-on waterproofing Manukau — Nuraply 3PM membrane across new build roof deck — Nuraply 3PM membrane across a new build roof deck

Torch-on roof waterproofing Manukau — large-format Nuraply 3PM torch-on roof — Large-format torch-on roof section finished in granulated cap sheet

Torch-on waterproofing Manukau — Nuraply 3PM deck with drainage outlet sealed — Drainage outlet fully sealed into the deck membrane

Torch-on waterproofing Manukau — Nuraply 3PM membrane detailing on new build deck — Detailed membrane work on one of the smaller decks

Torch-on waterproofing Manukau — completed Nuraply 3PM torch-on roof and decks — Completed torch-on roof and deck areas on the new build

Torch-on waterproofing Manukau — Nuraply 3PM membrane finished to deck perimeter — Membrane finished neatly to the full deck perimeter

Torch-on waterproofing Manukau — Nuraply 3PM deck ready for handover — Waterproofed deck ready for handover to the builder

Installation Process

The waterproofing was delivered in a systematic sequence across the roof and all seven decks to guarantee a durable, leak-free result.

Substrate Preparation

Checked and prepared the plywood substrate on the roof and each deck, ensuring falls, priming and a sound, clean base ready for torch-on membrane.

Priming

Applied bituminous primer across all areas to promote full adhesion of the first membrane layer.

First Membrane Layer

Torch-applied the Nuraply 3PM base layer across the 420m² roof and the seven decks, fully bonding it to the primed substrate.

Double-Layer Cap Sheet

Torch-fused the granulated Nuraply 3PM cap sheet over the base layer, creating a double-layer monolithic membrane with staggered laps for maximum redundancy.

Detailing & Upstands

Dressed and sealed all upstands, box gutters, outlets and penetrations, carrying the membrane up walls and over edges to code.

Quality Inspection

Inspected every seam, lap and detail across the roof and decks, confirming a fully watertight envelope before handover to the builder.

Result & Warranty

The completed project delivered approximately 500m² of fully waterproofed roof and deck area, handed over to the builder on time and weathertight. The double-layer Nuraply 3PM roof and all seven decks are protected by a robust, long-life membrane suited to a premium new build.

All work was completed by Licensed Building Practitioners and comes with our workmanship guarantee. As a Nuralite approved applicator, the Nuraply 3PM system carries the manufacturer-backed warranty.

~500m² waterproofed

Double-layer torch-on roof

7 decks sealed

Delivered on the build programme

Nuralite manufacturer warranty

LBP workmanship guarantee

LBP Licensed & Nuralite Approved

This project was installed by Licensed Building Practitioner #BP181755 as a Nuralite approved applicator, providing homeowner protection under the Building Act 2004. Learn more about our torch-on waterproofing services.

Planning a New Build or Large Roof in Auckland?

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