Design & Specification - Flash Cards - Level 2

Question 1

Windows, Castlewood - How did you ensure the drawings you produced met the required standards?

Answer 1

All drawings referenced the required specification documents, statutory requirements and associated documentation.

Question 2

Windows, Castlewood - What drawings did you provide for the project?

Answer 2

Site plan, floor plan identifying locations, elevations, windows and door schedule.

Question 3

Windows, Castlewood - Why did you provide a performance specification?

Answer 3

A performance specification is provided so that the contractor can approach a supplier to obtain a contractor proposal for the window requirements. This means that the client is not responsible for the supplier taking away risk.

Question 4

Windows, Castlewood - What was included within the performance specification?

Answer 4

Required standards that the units need to meet i.e. appearance, size limitations, glazing requirements (top hung Part K), ironmongery, ventilation, fixing requirements (Centres not exceeding 600mm, 150 away from corners, gap sealant, BS8214). This will include reference to standards such as BS for polyester power coating and Approved Document Part L & K. Building Bulletin 101.

Question 5

Windows, Castlewood - What did the project required to meet in Part L?

Answer 5

Part L, Volume 2, 1.6 W m2k for glazing.

Question 6

Windows, Castlewood - Why did you recommend the replacement from timber to aluminium?

Answer 6

Although timber is a good insulator, it requires regular maintenance. Thermally broken aluminium provides better thermal performance and requires minimal maintenance.

Question 7

Windows, Castlewood - How are aluminium units more thermal efficient and more hard wearing?

Answer 7

Aluminium units are thermally broken where the frame is broken inside utilising a poor conductor like GRP to join the inner and outer frame together. They also do not require decoration once powder coated.

Question 8

Windows, Castlewood - What did the project require to meet in Part M?

Answer 8

Ensuring that the external doors met the required minimum width, which detailed in Part M is 775mm, level threshold with max lip of 15mm.

Question 9

Windows, Castlewood - What did the project require to meet in Part K?

Answer 9

Ensuring the safe opening and closing of windows - handles are not to be more than 1700mm high if obstructed or 1900mm high if unobstructed.
Glazing thickness was achived depepending on size.

Question 10

Windows, Castlewood - Were there any other Approved Documents referenced?

Answer 10

Part F - ventilation requirements.

Question 11

Roof, TAB - What supplementary information did you include in addition to the SOW?

Answer 11

Drawings, NBS specification, preliminaries.

Question 12

Roof, TAB - What was the supporting specification that was included?

Answer 12

BMI Redland specification document, NBS specification, site plan, roof plan and elevation.

Question 13

Roof, TAB - What was the tile specification for the project and why?

Answer 13

BMI Redland Cambrian Slate - previous covering was an interlocking concrete tile, replacement was match the existing look of surrounding roofs.

Question 14

Roof, TAB - Who was the manufacture used to assist in the specification?

Answer 14

BMI Redland - provided tile specification and associated NBS.

Question 15

Roof, TAB - What is a NBS specification? Why was this used?

Answer 15

Nation Building Specification is a specification software that provides construction based specification information to describe materials, standards and workmanship of a project. This ensures that projects are undertaken to the correct standards including British Standards, Building Regulations and other requirements. This is appended to the tender documentation.

Question 16

Roof, TAB - What drawings were provided?

Answer 16

Site plan, elevation and roof plan.

Question 17

Roof, TAB - Which building regulations were applicable?

Answer 17

Part A roof coverings, Part C For control of condensation, Part H drainage of the roof, Part L insulation requirement.

Question 18

Roof, TAB - How was the new roof ventilated?

Answer 18

Ventilated soffits, ventilated ridge and hip.

Question 19

Roof, TAB - What was the specification for replacement?

Answer 19

Redland Cambrian Slates, single lap nailed twice, treated timber battens, breathable membrane, insulation to meet 0.16w m2k.

Question 20

HDP, WSCC - What is a design development log and why did you use one?

Answer 20

A design development log tracks change of design and stakeholder engagement. Needed as an auditable record of change to be referred back to.

Question 21

HDP, WSCC - Why do you need change control registers on a project?

Answer 21

Change control registers are needed on a project so that change is auditable, you can identify when change was raised and who it was approved and declined by.

Question 22

HDP, WSCC - What are the PDs duties under CDM?

Answer 22

Plan, manage, monitor and coordinate health and safety pre construction phase. Help advise the client on pre construction duties, and provide info to designers and contractors. Work with designers to eliminate risk and implement reduction and control measures. Ensure all parties communicate. Liaise with principle contractor.

Question 23

HDP, WSCC - Why do you use a design risk register?

Answer 23

To collate all risks in one place which will help show the progression of the reduction and management of risks.

Question 24

HDP, WSCC - Provide an example of a risk that was mitigated through design development?

Answer 24

When adding additional plant to an area without lighting, the DRA established that due to the amount of plant it would be beneficial to add lighting for maintenance.

Question 25

HDP, WSCC - What are your duties under CDM?

Answer 25

Make sure client is aware of duties. When doing design, take in to account PCI, eliminate, reduce and mitigate risks. Provide design information for the PCI, client and contractor to complete their duties. Communicate.

Question 26

HDP, WSCC - What are the clients duties under CDM?

Answer 26

Make suitable arrangements, appointing contractors and designers. Allow sufficient time and resource for each stage. Make sure the PD and PC carry out duties. Ensure there are suitable welfare facilities. Issue F10.

Question 27

Windows, Castlewood - What needed to be included in the Castlewood performance specification to ensure that it is compliant with building regulations?

Answer 27

Reference to the required building regulations i.e. Part F, Part L, Part M & Part K. Building control full plans approval was required.