Unmatched Quality

Lead Sheet and Acrylead represent the pinnacle of roofing materials, constructed from virgin lead with a minimum purity of 99.8%. Our sheets are meticulously machine-cast to precise dimensions and varying thicknesses, ensuring a product of unparalleled quality and consistency.

Advanced Protection with Acrylead

Acrylead, a variant of our lead sheets, boasts an additional layer of defence. It features a factory-baked acrylic primer coating, which acts as a robust barrier against water and the formation of lead oxides. This innovative coating significantly minimizes lead run-off, thus reducing the risk of staining on adjacent roofing materials like tiles.

Versatility at Its Core

Our Lead Sheet and Acrylead are not only durable but also remarkably malleable. This unique combination of strength and flexibility makes them an ideal choice for flashing, capable of adapting to various roofing designs and requirements. Whether your project demands intricate details or straightforward applications, our materials offer the versatility you need.

Resistant to the Elements

In the world of roofing, durability is paramount. Our lead products are designed to withstand the harshest elements, including corrosion and UV degradation. Their exceptional resistance ensures that your roofing solution will stand the test of time, providing unrivalled longevity and service.

Product Description:

DLM Wallace Lead Sheet & Acrylead consist of virgin lead of at least 99.8% purity, machine cast in to sheet form of various dimension and thickness. Acrylead has a factory baked acrylic primer coating which inhibits the contact of water with the lead and its oxides, greatly reducing lead run-off which can cause staining on surrounding roof materials such as tiles. Lead Sheet & Acrylead are soft and malleable, making them a versatile flashing material. They offer strong resistance to corrosion and UV degradation, offering unparalleled longevity of service.

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Scope of use:

Lead Sheet & Acrylead are used as a flexible weatherproof flashing to drain or deflect water back outside roof

and wall cladding systems. They are commonly used for flashing concrete, clay and slate tile roofs, for buildings described in Table 1 of NZS 3604:2011, and NASH Standard Part 2: May 2019- 1.3.1.

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Relevant building code clauses

· B2 Durability – B2.3.1 (a)

· E2 External Moisture – E2.3.1. E2.3.2

· F2 Hazardous Building Materials – F2.3.1

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Contribution to code compliance

B2 Durability – B2.3.1 (a)

When installed in accordance with DLM Wallace literature and NZBC E2/AS1, Lead Sheet & Acrylead will provide durability of no

less than 50 years. DLM Wallace manufactured Lead Sheet has an in-service history in New Zealand of over 100 years.

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E2 External Moisture – E2.3.1. E2.3.2

When installed in accordance with DLM Wallace Literature and NZBC E2/AS1, Lead Sheet & Acrylead will contribute to satisfying

the these performance requirements on NZBC E2. DLM Wallace Lead Sheet & Acrylead (17kg/m2 grade and above) meet the requirements of NZBC E2/AS1 4.3.1. DLM Wallace Lead Sheet & Acrylead is manufactured in accordance with AS 1804:1976 (Soft Lead Sheet and Strip).

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F2 Hazardous Building Materials – F2.3.1

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Prior to working with DLM Wallace Lead Sheet & Acrylead, installers and handlers should familiarise themselves with the health and safety guidelines offered in the DLM Wallace Lead Sheet & Acrylead Material Safety Data Sheet.

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Standards:

DLM Wallace Lead Sheet & Acrylead is manufactured in accordance with AS 1804:1976 (Soft Lead Sheet and Strip).

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Composition:

DLM Wallace Lead Sheet & Acrylead consist of virgin lead of at least 99.8% purity, machine cast in to sheet form of various dimension and thickness. Acrylead has a factory baked acrylic primer applied to both sides of the sheet, which minimises run-off of lead oxides.

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Limitations:

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· Material compatibility must be considered when specifying and installing DLM Wallace Lead Sheet & Acrylead.

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· Lead Sheet & Acrylead must not be used in contact with zinc-aluminium coated long-run steel or zinc- aluminium coated pressed metal tiles.

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· Refer to NZBC E2 AS1, Table 21- Compatibility of materials on contact.

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· Refer to NZBC E2 AS1, Table 22 – Compatibility of materials subject to run-off.

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· Due to thermal expansion and contraction, individual pieces of Lead Sheet & Acrylead must not exceed the dimensions listed in the table below;

Installation Requirements:

· Lap cover between individual sheets/pieces must be a minimum of 100mm

(Refer NZBC E2/AS1- 4.5.2 (f) )

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· Parallel flashings must be dressed down in to the tile pan, and have a minimum cover of 150mm, with a minimum upstand of 100mm (75mm minimum upstand behind cladding). Refer NZBC E2/AS1- Figure 26.

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· Transverse flashings must have a minimum cover of 150mm over the tile, and have a minimum upstand of 100mm (75mm minimum upstand behind cladding). Refer NZBC E2/AS1- Figure 26.

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· Flashings should be designed so that while the lead is in position, free thermal movement is not restricted.

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· Nails, screws and fixings should have a similar life expectancy, and thus should be copper, or stainless steel.

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· When forming and shaping lead, caution must be taken to not over-stretch the lead, which can create thin areas with reduced integrity.

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Maintenance Requirements:

To reduce the risk of run-off staining surrounding materials, a patination oil should be applied to un-painted lead sheet as soon as possible after fixing. Acrylead should be over painted with a quality acrylic external house paint and this coating should be maintained. As with all roofing material, Lead Sheet & Acrylead should be kept clean and free of moss, mould, lichen and

debris.

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Warning and Bans:

DLM Wallace Lead Sheet & Acrylead is not subject to warning or ban under section 26 of the Building Act 2004.

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