cabe technical report submission

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CABE

Technical Report submission

Proposed new three storey Secondary Academy School

Land adjacent to

By

December 2020

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In 2015 Council embarked on a new partnership with dealing with new schools across

We have dealt with various new schools ranging from primary, secondary, colleges and special needs schools, with more on the way to us, which are currently at pre-application stage. I am part of the plans examination team dealing with the various school projects, which are then inspected by the Local Authority Building Control, within the given areas.

LABC partner authority scheme is shared by all local authority building control teams in England and Wales. Agents and Architects can choose to work with any local authority to undertake all pre-application and plan checking work, regardless of the project's geographical location. The partner authority will then liaise with local authority building control colleagues at the project location to discuss site-specific issues such as drainage, contamination and liaison with the local fire service.

Having one point of contact regarding the plan checking aspect of these projects is extremely useful for both myself and . We work closely with , the architects, fire engineers and various specialists from early on in the design stage. This gives us the opportunity to highlight any potential problems through pre-application meetings and consultations. Good communication is paramount in delivering these projects, especially due to tight timescales associated with school developments.

This report is based on the plans examination process of School, . Due to the complexity of the

building and the limited words recommended for this report, this report will mainly discuss the issues that arose with regards fire safety.

The proposed development consists of a ground, first and second floor secondary school building. It offers a wide range of facilities including a lecture theatre, main theatre, sports hall, café and various general teaching spaces.

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An initial pre application meeting was arranged where we met with and the architects. When the initial pre-app meeting was

carried out, the plans were at an early stage and a Fire Engineer had not yet been appointed. In this meeting we discussed my initial concerns. One of the main concerns was that the stairs had not been lobbied. Approved Document B vol 2 and BS 9999 advises that where two or more stairs are provided it should be assumed that one of them might not be available due to fire. It is therefore necessary to discount each stair in turn in order to ensure that the capacity of the remaining stair or stairs is adequate for the number of persons needing to escape. One exception to this is if the escape stairs are lobbied. It was explained to the Architect that as the proposed plans was showing the stairs not lobbied and therefore the discounting of stair procedure would need to be adopted. This slightly concerned the architects due to the potential increase in size of the stairs. Another concern was that the central lift was accessed from the open area at ground floor level however at first and second floor the lift was situated within the stairs. This was a concern as there was potential for smoke and fire to spread from the open plan area into the stairs at first and second floor level. I advised the architect to appoint a Fire Engineer at their earliest convenience who could advise them on possible stair width increases and protection of the stairs in relation to the lift location.

Discussions took place regarding which documents were to be used in the design process i.e. BB100 or BS 9999.

The architect was advised the following information would be required:

Full SE details for the project, this was to include site investigation, foundation details, super-structure.

A fire strategy will be required noting which guidance documentation is to be used and setting out the principle of means of escape, fire spread and access for fire and rescue service access.

Full site investigation report highlighting any contaminates found and remedial measures proposed.

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Details of damp proofing and resistance to condensation.

An acoustic report should be provided using the recommendations given in BB93 Detailing the proposed sound resistance between teaching spaces and from external noise pollution.

A full ventilation strategy including adequate fresh air and suitable extract in kitchens, wc’s and other places of special interest.

Toilet provisions, the number and location of toilets in accordance with the guidance given in BS6465.

Full drainage details both foul and storm including internal plumbing and drainage, sustainable storm drainage systems (SUDS).

Waste storage and tracking details for waste vehicles.

Details of heat producing appliances.

Details of stairs, ramps, handrails, details of glazing, protection from falling, manifestation.

A SEBEM report will be required for the proposed new building including details of over heating, ventilation, thermal elements and air tightness.

A detailed access statement to include external access parking, access in and around the building, toilets provisions, lifts etc.

Time scales with these schools are very tight from conception to starting on site. This provides challenges as quite often we are checking plans as works are ongoing, so any issues need to be raised at the earliest opportunity and it is essential that good communication is maintained between us and the inspecting authority.

The application was deposited with Council on 12 September 2017, which included little more than general arrangement drawings and sections. The application and plans were then sent to Building

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Control in accordance with LABC partnership scheme. Shortly after sending the information, Building Control contacted us as works had commenced on site and they had little or no information.

A basic tracker was produced and this was sent to the architect pushing them for further details. In particular structural details, ground investigation and any drainage as these works had commenced on site. This would at least enable to compare what was being carried out on site to the details being checked by us. At this stage the architect was advised that they were working at risk, as the application had not yet been checked or approved and any site inspections would only consist of noting what was on site and any possible contraventions, rather than approving works.

The first details that were submitted were details of the stairs. The architect advised me that they were seeking approval of this element as they were setting out on site. I advised the architect that, as discussed in the pre-application meeting, I could not make any comment on the stairs and setting out alone without the fire strategy, as the widths of the stairs would be determined by this and the occupancy of the building. The architect advised they would discuss this with the fire engineer. Shortly after the initial fire strategy was issued.

The report noted that the design principles were based on BS9999 however where details are included in the scheme, which are not included in BS 9999 then guidance will be taken from BB100.

The fire strategy was checked against the guidance in BS 9999 and the following observations were made:

- The lift was still showing on the plans passing from the ground floor open area into the stairs at first and second floor (Stair 3). The fire strategy noted that the lift would return to the ground floor on activation of the alarm with doors opening. This would create a potential path for fire and smoke. Lift wells should either be contained within the protected stairway or be enclosed throughout their height with fire resisting construction. A lift well connecting

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different compartments should form a protected shaft. Further details/justification would be required.

- There are 'dead-end' situations at second floor level (stair 3 and 5). These need to be protected corridors. At stair 3, an additional cross corridor door is required (adjacent to the disabled refuge) or alternatively the whole corridor, up to the circulation area should be a protected corridor.

- The final exit from Stair 3 is noted as 2050mm on the fire strategy plans however the distance alongside the stair only appears to be the same width as the stair. This should be the same width as the final exit due to merging flow calculations, given in the fire strategy.

- The occupancy of the sports gallery was noted as 66 people however the doors were opening inwards. Where a room contains more than 60 people, doors should open in the direction of escape.

- A cross corridor door is required to the right hand wing at second floor level.

- Details required for both theatres with regards to gangways no of seat etc.

- Hold open devices should be provided to doors which are to be used day to day and general circulation. Smoke detection is to be installed/positioned as per the guidance given in BS 7273-4 where hold open devices are used on doors.

- Further details were required for the area over the central core and if this is considered an atrium, details of ventilation should be provided if required.

- Details of protection of steel frame, walls, cavity barriers etc. - Confirm means of escape route from roof. - The exit doors between pupils changing rooms are noted as 800mm. If

during community use this door is to take some of the sports hall and the theatre, 800mm may not be adequate. The plan is showing double doors but minimum width is noted as 800mm. Confirmation required.

- Provide details of the external wall details in relation to unprotected area (elevation 2) as noted in the fire strategy.

- Provide details of the fire brigade access, tracking details, hydrant positions.

Application for Chartered Membervia Professional Interviewcbuilde.com v1.2 oct 19

2 Application for Chartered Member v1.2 oct 19

By completing this application you agree that the information contained within it has been given freely.

Care should be taken to ensure that ALL parts of the application are fully completed.Please refer to the relevant guidance notes to accompany the application for Chartered member via professional interview.

Personal DetailsSurname: Title (Mr/Mrs/Miss/Other):Forename(s):Home Address:Postcode:E-mail:Date of Birth:Mobile: Telephone:

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Office Held: Employer:Contact Tel: Relationship to Applicant:E-mail: Number of Years Known to

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Description of current job role

Personal StatementThis should be brief overview of who you are, what attracted you to the industry, career highlights and future goals.


Demonstration of competenceTo assist in completing the following, please refer to pages 14-19 of the Competency Frameworks: https://cdn.ymaws.com/cbuilde.com/resource/resmgr/documents/competency_framework_v1.4.pdf.Your statement may be supplemented by photographs, plans, reports, notes and any other information that may assist in demonstrating competence.

Please complete this section by giving examples of how you have demonstrated the following competenciesA) Use a combination of general and specialist building engineering knowledge and

understanding to apply existing and emerging technology relevant to your work.A1) Maintain and extend a sound theoretical approach to the application of technology in building

engineering practice and demonstrate detailed knowledge of and the ability to apply technical standards, codes, regulatory and other requirements relevant to your work.

A2) Use a sound evidence-based approach to problem solving and contribute to continuous improvement in your building engineering work.

Competencies demonstrated e.g. A2

B) Apply appropriate theoretical and practical methods to manufacture, assess, design, develop, construct, commission, operate, maintain, de-commission and recycle using building engineering process, systems, products and services relevant to your work.B1) Identify, review and select techniques, procedures and methods to undertake building

engineering tasks and demonstrate suitable awareness of and the ability to work within the legal, statutory and regulatory frameworks specifically relevant to your building engineering work and how this relates to the work of others.

B2) Contribute to the assessment or design of building engineering solutions.B3) Implement or assess building engineering solutions and contribute to their evaluation.

Competencies demonstrated e.g. B2


C) Provide technical and commercial management.C1) Plan for effective project implementation or project management.C2) Manage tasks, people and resources to plan and budget.C3) Manage or work effectively within teams and develop staff to meet changing technical and

managerial needs.C4) Manage or support continuous quality improvement.

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Competencies demonstrated e.g. D2



E) Demonstrate a personal commitment to professional standards, recognising obligations to society, the profession and the environment.E1) Comply with the CABE Code of Professional Conduct and any other relevant code of conduct.E2) Manage and apply safe systems of work.E3) Undertake building engineering activities in a way that contributes to sustainable development.E4) Carry out and record CPD necessary to maintain and enhance competence in own area of practice.E5) Exercise your responsibilities in an ethical manner.

Competencies demonstrated e.g. E2

cabe technical report submission

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