City of London • EnglandBS EN 1279 (Parts 1–6)

Insulating Glass Units (Double & Triple IGUs) in City of London

Commercial specification parameters, local district requirements, and regional supplier discovery for insulating glass units (double & triple igus) across City of London, Greater London.

Local Commercial Requirements in City of London

In City of London, projects specifying insulating glass units (double & triple igus) frequently encounter specific architectural conditions across commercial zones like City of London Central Business Quarter, City of London High Street & Retail Precinct, City of London Commercial & Industrial Park. Zone 1 (City of London High-Rise): Inland temperate microclimate with standard Part L thermal U-value compliance (≤1.2 W/m²K) and solar heat gain mitigation (g-value ≤0.35).

Local Building Authority Compliance:Subject to Greater London Building Control building control and UK Building Regulations Approved Documents (England & Wales).

Verified Technical Specifications (BS EN 1279 (Parts 1–6), Approved Document L, BS EN 673 (U-value calculation), BS EN 16612 (Isochoric pressure), CIBSE Guide A)

Safety Class:Determined by individual glass plies (inner/outer toughened or laminated to BS EN 12600)

Acoustic Reduction:Rw 31 (-2; -5) dB (standard 4-16-4) up to Rw 46 (-2; -6) dB (dissimilar thicknesses + acoustic laminated pane)

Typical U-Value:1.0 to 1.2 W/m²K (Double Glazed 28mm Argon + Soft Coat Low-E); 0.5 to 0.7 W/m²K (Triple Glazed 44mm Krypton/Argon)

Cold Cutting:Prohibited

An assembly consisting of at least two panes of glass separated by one or more hermetically sealed cavities containing argon or krypton gas and dehydrated with molecular sieve desiccant (BS EN 1279 Parts 1–6).

Procurement in City of London

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