Rogiet Primary School This document contains a Building Performance Evaluation report from the £8 million Building Performance Evaluation research programme funded by the Department of Business Innovation and Skills between 2010 and 2015. The report was originally published by InnovateUK and made available for public use via the building data exchange website hosted by InnovateUK until 2019. This website is now hosting the BPE reports as a research archive. As such, no support or further information on the reports are available from the host. However, further information may be available from the original project evaluator using the link below. Innovate UK project number 40042 Project lead and author Piers Sadler Consulting (via White Design Associates) Report date 2014 InnovateUK Evaluator Roderic Bunn (Contact via www.bpe-specialists.org.uk) Building sector Location Form of contract Opened School Monmouthshire Design & build 2008 Floor area Storeys EPC / DEC (2015) BREEAM rating 1853 m 2 (TFA)* 1 B (32) / C (65) Excellent BRUKL quotes 1454 m 2, EPC quotes 1439 m 2. Researchers should check actual usable floor area used in calculations. Purpose of evaluation The BPE at Rogiet school aimed to study discrepancies between design intent and realisation and predicted and actual energy usage, taking into account the contexts of design, procurement, construction, handover and building management. The study identified how discrepancies could be avoided in future. Design energy assessment In-use energy assessment Electrical sub-meter breakdown No Yes Yes Electrricity consumption at 48.2 kWh/m 2 per annum, thermal (gas) at 54.1 kWh/m 2 per annum. At the beginning of 2014, the energy performance of the school was reviewed using 2013 gas and electricity data. The TM22 simple assessment was revised to reflect the later energy consumption. Data was available covering a period of 347 days from 7 February 2013 to 20 January 2014. Electrically, there was a significant increase in wind turbine energy usage compared to 2012 when the turbine was out of commission for a long period. Most of the discrepancy between the as-built EPC and the DEC results from actual gas usage of 153,799 kWh per annum compared with a design estimation of 41,002 kWh per annum. Occupant survey Survey sample Response rate BUS, paper-based 28 100% The summary overall comfort scores for Rogiet School were statistically above both scale midpoint and the benchmark references for all comfort variables other than temperature in winter, which was above scale midpoint but typical against benchmark. The detailed variables for 10 air quality, noise, control and temperature variables were statistically worse than midpoint and benchmark, while 11 control, lighting and temperature sub-variables were classified as ‘typical’. Innovate UK is the new name for the Technology Strategy Board - the UK’s innovation agency. Its role is to fund, support and connect innovative British businesses through a unique mix of people and programmes to accelerate sustainable economic growth. For more information visit www.innovateuk.gov.uk About this document: This report, together with any associated files and appendices, has been submitted by the lead organisation named on the cover page under contract from the Technology Strategy Board as part of the Building Performance Evaluation (BPE) competition. Any views or opinions expressed by the organisation or any individual within this report are the views and opinions of that organisation or individual and do not necessarily reflect the views or opinions of the Technology Strategy Board. This report template has been used by BPE teams to draw together the findings of the entire BPE process and to record findings and conclusions, as specified in the Building Performance Evaluation - Guidance for Project Execution (for domestic buildings) and the Building Performance Evaluation - Technical Guidance (for non-domestic buildings). It was designed to assist in prompting the project team to cover certain minimum specific aspects of the reporting process. Where further details were recorded in other reports it was expected these would be referred to in this document and included as appendices. The reader should note that to in order to avoid issues relating to privacy and commercial sensitivity, some appendix documents are excluded from this public report. The Technology Strategy Board is an executive non- departmental public body sponsored by the Department for Business, Innovation and Skills, and is incorporated by Royal Charter in England and Wales with company number RC000818. Registered office: North Star House, North Star Avenue, Swindon SN2 1UE. ! ! ! Contents 1! Introduction and overview ........................................................................... 3! 1.1! Key Facts ................................................................................................................... 3! 1.2! Rogiet School BPE Outcomes and Benefits .............................................................. 4! 1.3! BPE Wider Industry Conclusions ............................................................................... 4! 1.4! Project Management .................................................................................................. 5! 1.5! Structured Review ..................................................................................................... 5! 1.6! Dissemination ............................................................................................................ 6! 2! Details of the building, its design, and its delivery ....................................... 7! 2.1! Summary of design brief and design intent ............................................................... 7! 2.2! Structure and materials ............................................................................................ 11! 2.3! Documentation ......................................................................................................... 11! 2.4! Energy strategy ........................................................................................................ 15! 2.5! Construction management processes ..................................................................... 16! 2.6! Thermal imaging ...................................................................................................... 19! 2.7! Equipment Inventory ................................................................................................ 21! 2.8! Conclusions and key findings for this section .......................................................... 22! 3! Review of building services and energy systems ...................................... 23! 3.1! Energy systems ....................................................................................................... 23! 3.2! Metering ................................................................................................................... 26! 3.3! TM39 Compliance .................................................................................................... 28! 3.4! Conclusions and key findings for this section .......................................................... 28! 4! Key findings from occupant survey ........................................................... 29! 4.1! How the study was undertaken ................................................................................ 29! 4.2! Main findings of the BUS ......................................................................................... 29! 4.3! Follow up on BUS issues ......................................................................................... 32! 4.4! Conclusions and key findings for this section .......................................................... 36! 5! Curriculum Integration ............................................................................... 37! 5.1! Curriculum workshops and data sheets ................................................................... 37! 5.2! Creative Labelling task ............................................................................................ 40! 5.3! Buffer Zone Experiment ........................................................................................... 41! 5.4! Enhanced Building Users Guidance ........................................................................ 41! Building Performance Evaluation, Non-Domestic Buildings – Phase 1 - Interim Report Page i ! ! ! 5.5! Conclusions and key findings for this section .......................................................... 43! 6! Energy use by source ................................................................................ 44! 6.1! Data collection and the BMS ................................................................................... 44! 6.2! Data collation and reconciliation .............................................................................. 45! 6.2.1! Gas!data!.....................................................................................................................................................!45! 6.2.2! Electricity!data!.......................................................................................................................................!47! 6.2.3! Conclusions!on!meter!reconciliation!...........................................................................................!49! 6.3! TM22 simple assessment ........................................................................................ 49! 6.4! Comparison of overall energy