Construction Tech - John Roan Flashcards
1
Q
What design options were considered?
A
- The use of each room – meeting room, reception office and medical / waiting room
- Existing reception desk – client wanted it to be converted into a storage space
2
Q
What was the contractor’s design portion?
A
- Design and installation of all new services, including:
o Lighting – LED lay in grid on simple switch
o Small power – 4no. double sockets per office
o Ventilation – MVHR as detailed later
3
Q
What did you include within the employer’s requirements?
A
- Outline of the project
- Scope of services required – e.g. specificity on all new services
- Performance specification of the services
- Existing and proposed drawings
- Proposed form of contract (JCT MWD16)
- Responsibility of statutory approval – contractor allowed to self-certify under NICEIC Competent Persons Scheme
- Tender pricing document
4
Q
What is a CAT A fit-out?
A
- A level of fit out of the tenant’s space completed by the developer.
- May include:
Raised floors and suspended ceilings,
Distribution of mechanical and electrical services
Internal surface finishes
Blinds
5
Q
What is a CAT B fit-out?
A
- The fit out of the internal space to the tenant’s requirements.
- May include:
Final finishes and branding
Installation of offices
Fitting out of reception, meeting rooms etc.
Installation of lighting, AV etc.
6
Q
What standards did you ensure the ventilation system was installed to?
A
- Installed by a competent and familiar installers
- Trained in accordance with BPEC installer scheme
- Approved Document F: Ventilation
- Contractor submitted designs of location of:
o Location of ductwork run, fan unit and controls
o Type, size and position of ducts and terminals
o Direction of fall for ‘horizontal’ ductwork
o Type and spacing of clips and fixings
o Type and location of ancillary components – e.g. crosstalk attenuator and fire-stopping insulation
o Airflow-balancing figures for the system
7
Q
What standards did you ensure the lighting system was installed to?
A
- Ensured all installations met ISO 9001 standards
- Specified self-certification of NICEIC installation
- Appropriate lux levels dependant on the room
- Approved Document P: Electrical Safety
- Approved Document L: Conservation of Fuel & Power
8
Q
What standards did you ensure the small power system was installed to?
A
- BS 7671 – 18th Edition
- Specified self-certification of NICEIC installation
- Approved Document P: Electrical Safety
9
Q
How did you strip out all existing services?
A
- All supplies were switched off, de-gassed and capped, then taken back to the meter in some occasions
10
Q
What did you recommend for each room?
A
- Lay in grid suspended ceiling, incorporating ventilation and lighting
- Thorlux Hyline 600x600mm L80/B10 LED – 67,000 hours
- Partitions with Rockwool sound insulation slab 70mm – 45dB between timber joists, 400mm centres, incpororating 2x 12.5mm Gyproc FireLine plasterboard on either side
- Burmatex carpet tiling – Tivoli – 600
- Data points, small power sockets to suit the client’s needs
Office
- Burmatex carpet tiling – Tivoli – 600
- Data points, small power sockets to suit the client’s needs
- Access hatch at suitable height to satisfy Doc M
- Client provided their own furniture
Medical Room
- Polyflor Verona PUR flooring – safety flooring, >36 RRL pendulum test
o Came with guarantee throughout life of the product
- Data points, small power sockets to suit the client’s needs
11
Q
What are the Approved Document M stipulations for entrances?
A
- Need to limit air filtration, control draughts, increase security, provide transitional lighting
- Lobby should be large enough to allow wheelchair / pram to move clear of one door before entering the next door – requirement of at least 1,570mm space between each door
- Reception desk to be at least 1,500mm wide, no higher than 760mm, knee recess no less than 700mm above floor level
- Reception point provided with hearing enhancement system
- Floor surface is slip resistant – barrier matting installed
12
Q
When was the building constructed?
A
- 2011
13
Q
What was the existing layout?
A
- Open plan reception area
- Automatic doors as entry
- Solid timber desk in the middle of the room
14
Q
What acoustic insulation did you specify?
A
- Rockwool sound insulation slab – 70mm x 400mm x 1200mm, fire rated to FD30
- Installed in each ceiling void
- Installed within cavity of partitions - Rockwool sound insulation slab 100mm
15
Q
What fire-rated elements did you consider?
A
- Fire rated timber doors, frames and architraves
- Fire-rated insulation in the ceiling voids
- Compartmentation between each partition
- Ensured new partitions had adequate means of escape
- Fire stopping to services in ceiling void
- Fire dampers to ventilation ductwork
- Ductwork within ceiling void installed using metal clips
16
Q
Was there a requirement for sprinklers?
A
- Not in new partitions – the main building had various sprinklers throughout, each partition was fire-rated and protected
- The FRA advised that the new partitions needed only a standard L2 fixed point fire alarm, linked to an alarm receiving centre for coverage on night times, weekends and school holidays
- Smoke detection was installed in new rooms, with emergency lighting
- Detection system to be installed in accordance with BS 539-1:2017
- Emergency and escape lighting to all walkways and escape routes in accordance with BS 5266-1 2005 and BS 5266-7
- Final exits with standard illumination with signage in accordance to BS 5499-1.
- Doors to be min 30-min fire rated to form compartmentation in each partition, fire resistant glazing
17
Q
What lux levels did you specify?
A
- For each office – 500 lux
- Circulation areas / waiting area – 200 lux
- Medical room – 1,000 lux
18
Q
What are the lux levels required per each room setting?
A
- Public areas with dark surroundings – 20-50
- Areas with traffic corridors – stairways, escalators, lifts – 100
- WCs - 100
- Warehouses, homes, theatres – 150
- Coffee break room, technical facilities, waiting rooms – 200
- Easy office work – 250
- Class rooms – 300
- Normal office work, PC work, study library, show rooms, labs, kitchens – 500
- Supermarkets, mechanical workshops, office landscapes – 750
- Normal drawing work, detailed mechanical workshops, operation theatres – 1,000
- Detailed drawing works, very detailed mechanical workshops, - 1,500-2,000
19
Q
What is lux?
A
- 1 lux = illumination of 1sqm surface 1.0m away from a single candle
