Thruwall® Solutions for the
building envelope

Download the Thruwall® brochure

Removing uncertainty from
external envelope specification

From sound and thermal insulation, to mechanical and fire resistance, we understand the challenges faced by specifiers when designing the external envelope of a building. With such wide-ranging performance requirements, it’s a complex challenge, and one to which, until now, no single supplier could offer a tested solution.

Thruwall® Benefits and Uses

Thruwall® benefits

  • Fully tested systems
  • 30-year warranty
  • Market-leading products
  • Global provider
  • In-house technical experts

Specify Thruwall® for:

  • Mixed-residential
  • Student accomodation
  • Hotels
  • Three leading brands,
    one certified solution.

    Thruwall® is a non-loadbearing in-fill system for the external building envelope composed of:
    • Steel frame systems (SFS)
    • Weather Defence™ External sheathing
    • Internal drylining
    Download the Thruwall® brochure
Products in Thruwall®

Weather Defence™
sheathing board

Weather Defence™ is a market-leading, gypsum-based external sheathing board. Faced with water repellent material for superior weather protection, it’s strong, highly moisture resistant and A1 non-combustible. It's also 50% quicker to install than cement particle board, and can be left exposed on frame for up to 12 months.
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  • Dimensionally stable, reliable airtightness
  • Double BBA certified
  • Fully A1 non-combustible, compliant for structures above 18 m
  • No need for segregated cutting area, power tools or dust extractor

A comprehensive
internal drywall range

Siniat is one of the UK's leading manufacturers of drywall products and systems for partitions, ceilings, wall linings and external sheathing. Our extensive plasterboard range means we have solutions to meet even the most challenging building requirements, including acoustic, fire, thermal, moisture and impact resistance.
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  • Comprehensive range to meet Part B, Part E and Part L requirements
  • Higher level of protection against impact, sound, moisture and fire
  • 100% recyclable

Fully engineered
steel frame solutions

The EOS fully engineered in-fill frame solution can be applied to any primary structural frame. It’s custom-designed to meet the specific requirements of any given project. No matter the project’s size or scale, EOS Façades provides a versatile solution that’s manufactured to the most demanding specification.
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  • Lightweight and custom designed
  • All sections delivered at cut to length, zero cutting or wastage on site
  • Factory assured standards of quality
  • Colour codes and individually labelled

Book a CPD on lightweight building envelope design

Like to speak to an Architectural Specification Manager?

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