FOAMGLAS Compact roof systems

Flat roof insulation

Eg: TDS-4-1-2 Compact Flat Roof without service access or protective layer on reinforced concrete deck


1 Concrete roof deck

2 Primer coat


4 FOAMGLAS READY BLOCK with gradient, bonded with PC 500

5 Two layers of bituminous waterproofing membranes, top layer UV-resistant

FOAMGLAS® product properties

Waterproof – Resistant to vermin – High compressive strength – Non-combustible – Impervious to water vapour – Dimensionally stable – Acid resistant – Easily cut to shape – Ecological

Advantages of the FOAMGLAS® system

- Quality: Systems with high quality materials. Quality management by systematic site inspections and professional consulting.

- Cost efficiency: The high durability preserves maximum value and guarantees minimal maintenance costs.

- Sustainability: Optimum insulation and protection against moisture for generations.

- Safety: Compact, fully bonded insulation system preventing large-scale damages and renovations in the event of a leak caused by a puncture of the roofing membrane. No penetrations by mechanical fastening. No risk of condensate due to air leakage.

- Functionality: A bituminous waterproofing membrane can be directly torched on to it. Insulation and vapour barrier in one single functional layer. Flexible and easy installation of a gradient through tapered prefabricated blocks.

Recommendations for architects

- Normally used: FOAMGLAS® READY BLOCK T4+ or FOAMGLAS® READY BLOCK TAPERED T4+, size 600 / 600 mm.

- Insulation thickness to meet building regulations or project-specific U-value requirements. Please also consult our product overview. It contains information on all our products, their field of application and their specific properties.

- The flatness and the general conditions of the substrate are important criteria when using FOAMGLAS® (see TG1). Please contact our Technical Department to verify the criteria for the substrate.

- For technically correct implementation, relevant standards and guidelines must be observed.

See also:  

(Text provided by the manufacturer)

  • Foamglas sample

Environmental metrics

Product competence
BBA certificate (number 14/5111)

Recycled, post consumer waste, silica, sand and elements of glass production. Min. 60% recycled and new glass with mixed carbon.

Functional advantage(s)
Loadbearing / high compressive strength
Can be cut with common tools

Life expectancy
100 years, subject to conditions

25 years

EPD to ISO 14025
EPD to EN14041 conforms to NF P 01-010

Recycled content


Environmental labelling
natureplus (number 0406-1101-101-1)

Country of manufacture

Manufacture details

Pittsburgh Corning (UK) Ltd

31-35 Kirby St., London, EC1N 8TE

0207 492 1731

0207 492 1730.


Selection Criteria

PASS endorsement is based upon a distinguished performance in these categories:

Raw material acquisition

  • Fossil fuel depletion: Reduced/zero use of fossil fuel(s)
  • Waste disposal: Reduced/zero waste

Materials / product manufacture

  • Global warming potential: Reduced/zero carbon emissions
  • Fossil fuel depletion: Reduced/zero use of fossil fuel(s)
  • Resource efficiency: Increased use of post-consumer recycled material(s)
  • Resource efficiency: Optimises use of recycled material(s)

Product use

  • Global warming potential: Effects a reduction in carbon output
  • Global warming potential: Reduced/zero carbon emissions

Final depostion

  • Resource efficiency: Reusable
  • Waste: Reduced / zero hazardous waste

Construction properties

  • Limits thermal bridging
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