4.6.3 Roof - Foamglas Insulation with Thermally Isolated Fixing Positions for Standing Seam Roof

4.6.3 Roof - Foamglas Insulation with Thermally Isolated Fixing Positions for Standing Seam Roof

FOAMGLAS® Third party certifications:
  • BSI Kitemark

    BSI Kitemark

    Certificate type

  • QA Certificate

    QA Certificate

    Certificate type

  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Ready-Roof with standing seam or profiled metal sheet cladding on trapezoidal metal deck  

Jump to:
+44 (0)20 7492 1731 www.foamglas.co.uk


  • Waterproof.
  • High compressive strength without deflection or movement.
  • Non-combustible.
  • Impervious to water and water vapour.
  • Sealed cellular structure.
  • Dimensionally stable.
  • Acid resistant.
  • Easily cut to shape.
  • Resistant to vermin.
  • Recycled content scrap glass: Minimum 60%.
  • Ozone Depletion Potential (ODP): <1%.
  • Global Warming Potential (GWP): Zero.
  • GreenSpec rating, see 'Cellular Glass' or 'Foamed Glass'.
  • Green Guide rating, see 'Cellular Glass'.


  • Quality: Systems with high quality materials. Quality management by systematic site inspections and professional consulting.
  • Cost efficiency: The high durability preserves maximum value and ensures minimal maintenance costs.
  • Sustainability: Optimum insulation performance and protection against moisture for future generations. Scrap can be reclaimed and re-cycled to make new Foamglas.
  • Insulation performance: Insulation performance is permanent; ageing does not take place. Use above and below ground, unaffected by moisture, humidity and compressive loads. Proven to retain its thermal and vapour control characteristics for ˃ 50 years.
  • No thermal bridging: Fully bonded insulation systems, metal roof fixings are secured to the insulation layer; hence preventing thermal bridging; and exposed fixings on the soffit side
  • Non-toxic: Foamglas cellular glass contains no toxic substances, does not contaminate water or the ground, in cases of fire, does not develop fumes or toxic gases.
  • Sealed structure and non-hydroscopic: Each cell has a glass wall, giving the unique structural strength, vapour tight and non-hydroscopic properties.
  • A separate vapour barrier is not required: With its purpose manufactured adhesives, Foamglas is suitable for extreme humidity environments and gives control of the vapour drive in any direction. Foamglas is an insulation and vapour barrier in one single material.
  • High compressive strength: Capability to withstand high compressive loads without deflection or movement.
  • Dimensional stability: Very low rates of thermal movement, mechanical fixings are not required to prevent delamination from the parent structure.
  • No fixings through the structural deck, no visible fixings on the soffit. No fixings, no thermal bridging.
  • Highly recommended for high humidity buildings, e.g. swimming pools and spas.

General information

Uniclass 2015

Pr_25_71_52_13 Cellular glass insulation boardsPrimary


J41/10 Built-up reinforced bitumen membrane warm deck roof covering

J41/110 Built-up reinforced bitumen membrane warm deck roof covering

Specification data - Cellular glass insulation boards

Product Reference

4.6.3 Roof - Insulation with thermally isolated Fixing Positions for Standing Seam Roof


PC® 11

Fixing plates

PC® SP150/ 150P




Foamglas® Ready Board (T4+)


70 mm

80 mm

90 mm

100 mm

110 mm

120 mm

130 mm

140 mm

150 mm

160 mm

170 mm

180 mm

Bituminous waterproofing membrane

As section J41, clauses 400 or 405

Separating layer

As section J21, clause 400


Profiled metal sheet, as section H31

Standing seam metal sheet, as sections H71–75

Standard product features


  • Thermal performance is permanent and never changes.
  • Manufactured from recycled glass (minimum 60%) and natural raw materials which are available in abundant supply - sand.
  • The insulation is totally inorganic, contains no ozone depleting propellants (CFCs, HCFCs etc), flame resistant additives or binders; VOC or other volatile substances.
  • For substrate quality and suitability, see Technical Guide TG1.

- Foamglas® Ready Board (T4+):

  • Density (EN 1602, ± 10%): 115 kg/m³.
  • Length (EN 822, ± 5 mm): 1200 mm.
  • Width (EN 822, ± 2 mm): 600 mm.
  • Thermal conductivity (EN ISO 10456): ≤ 0.041 W/m·K.
  • Reaction to fire (EN 13501-1): Core material Euroclass A1.
  • Compressive strength (EN 826 annexe A): ≥ 600 kPa.
  • Flexural modulus of elasticity (EN12089) 700 MN/m².
  • Bending strength (EN 12089): ≥ 450 kPa.
  • Tensile strength (EN 1607): ≥ 100 kPa.
  • Thermal expansion coefficient (EN13471): 9 x 10-6 K.
  • Impervious to water vapour (EN ISO 10456): µ=∞ infinity.
  • Green Guide rating A.
  • CEN Keymark: 001-BK-516-001-0029-T00A.
  • CPR DOP: 120211015.

The product is also available as Readyboard (2)(T4+) designed specifically as a base layer to complement standard Ready Board (T4+).

Product Options


- Thickness:

For flat insulation thicknesses of ˃180 mm, use double layers of minimum 90 mm per layer.

  • Insulation Base Layer: Foamglas® Ready Board (2) (T4+).
  • Insulation Top Layer: Foamglas® Ready Board (T4+).

Digital objects
Platform Compatible Version Certified to

Revit 2016





Download now from NBS National BIM Library
Third party certifications
  • Foamglas Insulation: File BM730-585 certificate 0603. : Manufactured to Environmental Management System ISO14001
  • Alliance for Sustainable Building Products: Foamglas Insulation Nature Plus certificate number 0406-1101-101-1. : Nature Plus recognised and approved
  • 12/4900 : (Umicore VM Zinc Roof - insulation)
Similar products from FOAMGLAS®