WORCESTER, United Kingdom

MULTI COMFORT design principles can be applied to any type of building (residential or non-residential, new build or renovation project) in any country or climate around the world.

Project identity card
  • Category: New build
  • Climate: Mid-latitude Dry Semiarid (Steppe)(BSk)
  • Building type: MULTICOMFORT Education facility
  • Surface area: 400m2 m2
  • Architect: Associated Architects
  • Building name: King's Hawford School
  • Main contractor: Speller Metcalfe
  • Original construction year: 2016
  • Year of renovation: 2016

In March 2016, the first MULTI COMFORT building in the UK was completed – creating a healthy, comfortable, multi-purpose school hall environment for pupils to learn in and staff to work in.

The brand new building was designed to replace an existing converted barn structure, which had previously been used as a multi-functional school hall but was a physically smaller space and cold during the winter months.


Objectives and vision
Tasked with improving the school’s current hall facilities and applying MULTI COMFORT principles to create a healthy, comfortable environment for pupils to learn in and staff to work in, the architect proposed an ambitious aesthetic form for the new building.

The designs featured high-quality materials and finishes both internally and externally, and also included the specification of some non-standard products.


Highlights and challenges
The new MULTI COMFORT school hall at King’s Hawford Primary School near Worcester now provides a light and airy multi-purpose space for indoor sports, assemblies, concerts and school plays. Overlooking the school’s main sports fields, it consists of a large main hall space, changing facilities and a small kitchen/servery.

Located in a rural area on the outskirts of Worcester, the project was part-funded by Saint-Gobain as it presented an excellent opportunity to collect old and new building data to prove the MULTI COMFORT concept. Prior to work starting on the new build, building performance and staff/pupil survey data was collected from the school’s existing hall facility to establish where improvements could and would be made.


Ongoing performance monitoring
Saint-Gobain has installed monitoring equipment throughout the new school hall to collect ongoing building performance data. This data can be compared to the original MULTI COMFORT design intent to prove the concept and highlight any areas whether further improvements could be achieved.

Space temperature, humidity and CO2 sensors have been positioned throughout the main spaces, and PIR sensors provide an indication of where occupants spend their time within the building. Temperature sensor arrays positioned between the elements making up the walls, floor and roof measure the thermal performance of the external building envelope.

The data collection and monitoring phase of the project will be in place for two years.


Energy balance*

  • Energy consumption: N/A
  • Energy balance: N/A
  • Energy production: No provision for energy production on site

Daylight Autonomy

  • Sports Hall : 80%
  • Kitchen : 62%
  • Thermal performance

    • Average inside temperature: Average inside temperature:

      External Walls: 0.098 W/m2K
      Roof: 0.086 W/m2K
      Ground Floor: 0.086 W/m2K
      Glazing: 0.8 W/m2K (Frame – 1.1 W/m2K)

      Annual space heating demand: 14 kWh/m2

    Acoustic Performance

    • STI speech transmission index: : 0.46 – 0.6
    • C50 clarity: : -2.3 – 2.2
    • Signal to noise ratio: : 15.5 – 23.7
    • ** Difference between external and internal noise levels.

    Airtightness under 50 Pa

    Interim Test of 0.48ACH
    Target date for final air test 15th Feb.

    Architectural drawings