Masons fibre cement sheets are 4.5 mm thick and used as a soffit lining for external eaves and verge projections.

Masons 4.5 mm fibre cement soffit lining is a non-structural, lightweight, smooth, flat sheet. It is manufactured from Portland cement, crystalline silica, fly ash and cellulose pulp and is defined as non-combustible in accordance with BS 476-4. Once coated with a paint system it is resistant to moisture and rot.

Details
  • Category
    Eaves & Soffits, Concrete and Cements
  • Range
    Masons Building Products
Specifications

Available sheet size:

Length: 2440 mm, Width: 600 mm, Thickness: 4.5 mm

Scope of use

Locations

  • In wind zones up to and including extra high, as defined in NZS 3604:2011 or a maximum permissible ultimate limit state (ULS) of 2.1 kPa.
  • In all corrosion zones as defined in NZS 3604:2011.
  • Any proximity to the relevant boundary.

Limitations

  • Where installed within 1 m of a relevant boundary, the balance of the roof, eave and wall structure must meet the relevant fire-related building code obligations.

Buildings

  • On buildings where the primary roof structure complies with the New Zealand Building Code (NZBC) or for an existing roof structure where the designer and installer are satisfied that the existing framing is suitable for the intended building work.
  • In conjunction with timber or light weight steel framing.
Performance

If designed, installed and maintained in accordance with all Masons Plastabrick’s requirements, the Masons 4.5 mm fibre cement soffit lining will comply with or contribute to compliance with the following performance claims:

B1 Structure: B1.3.1, B1.3.2, B1.3.3 (a, h, j, m & q), B1.3.4 (a, b, c, d)

  • Chemical & Metallurgical Services, Chennai. IS: 14862, ASTM D-1032, IS: 2380, ASTM C1185. Testing for tensile strength, compressive strength, screw withdrawal strength, density, modulus of rupture [03/2017].

B2 Durability: B2.3.1 (b)

  • Chemical & Metallurgical Services, Chennai. IS: 14862, ASTM D-1032, IS: 2380, ASTM C1185. Testing for Freeze/Thaw [03/2017].

C3 Fire affecting areas beyond the fire source: C3.7 (a

  • TUV SUD PSB Pte. Ltd. BS 476: Part 4: 1970 [03/2015].

E2 External Moisture: E2.3.2, E2.3.3, E2.3.5, E2.3.7 (a, b, & c

  • Chemical & Metallurgical Services, Chennai. IS: 14862, ASTM D-1032, IS: 2380, ASTM C1185. Testing for water permeability, absorption, soaking [03/2017].

F2 Hazardous Building Materials: F2.3.1

  • Ramco Hicem Fibre cement board safety data sheet [28/05/2020].
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About the
Seller

We’re Masons – a New Zealand owned family business that’s been part of the building industry for more than 25 years. We develop products and systems that help buildings, and the people that make them, perform at their best.

Masons was built from practical experience. Trent Mason learned the trade in a bricklaying family, where doing the job properly mattered. When he moved to New Zealand at the age of 19, he brought that same mindset to the building site – always looking for better products and systems to make the job easier for the people around him.

That approach still motivates us. We focus on the complete building envelope and how each component interacts with the next. Wraps, air barriers, fixings, tapes, cladding elements – everything works better when it works as a system. Our goal is to reduce risk and remove guesswork so buildings perform the way they should.

Over the years we’ve become known as trusted problem-solvers – the people you call when you want something explained clearly, when you need to understand how components connect, or simply want confidence you’re making the right call.

We’re here to help make building smarter, simpler and more reliable – with great products, great systems and great people.

Masons. Delivering products and systems to build smarter.

Masons