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Spacetherm® A-Rated London


The A. Proctor Group’s Spacetherm A-Rated Aerogel Blanket has been chosen for its superior thermal performance, flexibility and suitability for space-critical applications in the refurbishment of 146 high-rise apartments in Poplar, East London.

The Balfron Tower project involves the upgrading and refurbishment of the Grade II* listed 1960’s building in the London Borough of Tower Hamlets, originally designed by the renowned architect Ernö Goldfinger. The re-design of the 27 storey tower block is part of a development led by architects Studio Egret West, with the interior design coordinated in partnership with Ab Rogers Design. Balfron Tower Developments LLP is a Joint Venture between Poplar HARCA, Londonewcastle and Telford Homes.

In their concept for the refurbishment Egret West has sought to bring the fabric of the building up to modern-day standards in terms of fire, acoustic and thermal performance.

Alisan Dockerty, project architect at Egret West explains: “The existing wall construction of the Grade II* listed buildings meant that space for traditional insulation was limited in some instances. We chose to apply Spacetherm A-Rated Aerogel Blanket from the A. Proctor Group, a high-performance insulation blanket with A2 fire rating, capable of achieving the BRE’s surface condensation analysis target temperatures of 16°C, whilst providing us with a minimum loss of space.

The concrete walls around the stairways in each apartment were particularly space critical and identified as a weak point for cold bridging. The original specification would have required an additional insulated wall lining of 145mm, whilst using Spacetherm A-Rated the required high-performance insulation was achieved in less than 60mm.”

In addition to the Spacetherm A-Rated blanket, foil encased Spacetherm A-Rated (CBS) Cold Bridge Strip was also included at window and door junctions to address areas susceptible to cold bridging.

Spacetherm A-Rated is the result of extensive research and development to produce a vapour permeable membrane with an A2 fire rating classification. The new insulation is classified as Class A2, s1 –d0 according to the Euroclass system, which classifies the reaction to fire performance of building products.

Spacetherm A-Rated is a flexible, high-performance, silica aerogel-based insulation material of limited combustibility suitable for use in exterior and interior applications. Supplied in a variety of finishes, the substantial layers of Spacetherm A-Rated meet the requirements for A2 classification (insulation, MgO and plasterboard).

The product optimises both the thermal performance and fire properties of façade systems, enhancing the thermal performance of the ventilated façade and addressing thermal bridging in the façade. It is also useful in minimising thermal bridges around windows in areas such as window reveals.

Spacetherm A-Rated

Spacetherm A-Rated

Installation Guides
Material Properties
BIM Objects
UK Availability
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Material Properties


Property Test Method Result
Thermal Conductivity 0.015 W/mK
Reaction to Fire (EN13501) C-s1, d0 Class
Vapour Permeability EN12086 5 μ
Density 150 kg/m3
Thickness 5, 10 mm
Surface Burning Characteristics (ASTM E84) - Flame Spread Index ≤5
Surface Burning Characteristics (ASTM E84) - Smoke Development Index 20
Maximum Operating Temperature 125 C

BIM Objects

File Format
Spacetherm - BIM Object - Masonry Wall Spacetherm Multi RVT
Spacetherm - BIM Object - Masonry Wall Spacetherm Direct Fix IFC
Spacetherm - BIM Object - Floor Insulation RVT

UK Availability

North East Scotland & Islands
Linda Kay
Regional Sales Manager


John Johnston
Sales Director


Adam Salt
Business Development Manager North


South London & South East
Josephine Matchette
Regional Sales Manager


Wales & South West
Marc Blackie
Technical / Regional Sales Manager

07968215 755

North London & East England
Ben Cremer
Technical / Regional Sales Manager


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The Haugh

Global Availability

North America
Jeff Dibdin
International Account Manager.


South America
Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


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For any building to have an energy efficient, healthy, moisture free building envelope there is a clear need to manage the balance of Heat, Air and Moisture movement (HAMM) throughout the building’s life cycle from design, construction, completion and use.


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The A.Proctor Group operates out of The Haugh in Blairgowrie, which has belonged to the family since the early 1900’s and now acts as the Head Office for the Administration departments and Customer Services.


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  A. Proctor Group Ltd., The Haugh, Blairgowrie, PH10 7ER





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