Contact information
Business Description

Green Building Store offers specialist products and services for low energy and Passivhaus buildings.Our range includes: high performance triple glazed timber windows & doors; Passivhaus products & services; water saving WCs and urinals; and insulation and airtightness products. Our construction division – Green Building Company – offers Passivhaus & low energy building services in the Huddersfield area for both new build and retrofit projects.

Business sector
Denby Dale Passivhaus

scope: Project leader & building contractor.Supplier of specialist Passivhaus products including PAUL MVHR system, Ecopassiv windows & doors and Pro Clima airtightness products.

aims: The project pioneered the combination of low energy Passivhaus methodology with standard cavity wall construction and building materials and is the UK\\\’s first cavity wall Passivhaus. To get cavity wall to perform to the Passivhaus standard, the Green Building Store team needed to develop many original design details, including floor and foundations, first floor, roof and window openings.Detailed information on the project is at:

measures: Detailed information on the project – including FREE technical resources – is available at:

monitoring: Passivhaus certification figures for Denby Dale PassivhausTotal floor area: 118m2Treated floor area: 104.4m2Heating requirement/ year: 15 kWh/m2/yearHeat load: 10 W/m2Primary energy requirement: 87 kWh/m2/yearAirtightness: 0.33 ach @ 50 Pa (to Passivhaus and Euronorm standard)U valuesExterior wall: 0.113W/m2KRoof: 0.096 W/m2KGround floor: 0.104 W/m2KWindows – average: 0.8 W/m2K

Water efficiency at Huddersfield bus station

scope: Green Building Store supplied its high performance ES4 water-efficient WCs and Airflush waterless urinals.

aims: A major washroom refurbishment was carried out by Metro in 2009 to resolve a number of maintenance issues. Saving water was also a priority, as part of Metro\\\\\\\’s environment and sustainability policy.

measures: The ES4 WC offers ultra low 4 litre flush combined with a robust siphon flush mechanism, meaning that the flush system will never leak water down the pan, unlike low flush WCs using valve flush mechanisms. The ES4 uses a Swedish-designed toilet pan, specially designed to work effectively with low flush volume, and is WRAS-approved as well as being listed on the Government’s Water Technology list. The Airflush urinal offers a revolutionary waterless system, which also does not require consumables, cartridges or oils. Instead it combines an ergonomically designed urinal bowl with a small integral low wattage fan, which creates negative pressure, maintaining a gentle flow of air down the urinal bowls and removing all odour.

monitoring: Huddersfield bus station figures 2009-10:Water consumption reduced by 38% (compared to previous year)£6,551.26 cut in water bill per annum 2009-10.£949.84 cut in emergency maintenance call-out bill per annum 2009-10Annual total cost savings = £7.5K