Peabody Flashcards
For Construction Technology, you mention the following - can you tell me how you measured, calculated duration, and the costs for the following:
Handrail system
Fall arrest system
Planning approval costs
Bauder waterproofing system
How were you aware of this alternative and that it was cheaper? How did the programme/duration change?
How did you determine the quotes were reasonable and value for money?
Handrail system - £48k total; 650m2 or 270lm
= £75/m2 or £180/lm
Fall arrest system - £32k total; 650m2 or 270lm
= £50/m2 or £120/lm
Planning approval costs - £1,500
Bauder waterproofing system - excluding structure £430k (bauderflex built up roofing system including VCL, PIR insulation, underlay and mineral cap sheet) = £650/m2
Aware of average costs (based on m2 roof coverage)
Duration - 1 week saving (although MTC not time sensitive)
Had cost estimation data; quotes comparable to estimate; lowest quote meeting quality requirements selected.
In Procurement and Tendering, you mention negotiating the contract sum - what was the value of this?
You mentioned a Schedule of Rates - what was this based on? Could you give me some examples of works and costs?
What atypical works were there and how did you determine costs were reasonable and value for money?
Contract Sum (Cremer) - say, £980k (agreed this one)
Access £370k
Roof Replacement £500k
PV Panels £110k
Variations (circa £150k)
Scaffold Handrail £5k
Roof Vents - Lower Roof
Roof Vents - £80k
Mansafe - £32k
2 Additional Invertors - £6k
Additional hire for hoists - £17k
FA - £1,130k
SoR items:
Rebuild wall - last flashcard
Wall, apply render £30/m2
Window; overhaul casement £40/nr
Cill repairs; cracks; concrete ne 15mm £40/lm
Fascia: renew PVC; dismantle and refix rainwater; adjust roof tiles/felt £45/lm
Quotes - Value for money - ref earlier flashcard
Atypical works - windows, doors, PV Panels, …
In PFCR, you mention a large number of change orders - how many were there at the end of the project and what was the value (as a % of original contract sum).
Contract sum (Islington Phase 2) - £2,050k
Variations - £500k (circa 1000 nr variations) - 25% of original contract
Why so many variations? This project was one of the first that Ridge were contracted to do for the client (new client) - this project was an inheritance of their old system where they allowed the MTC contractor to create ‘template’ properties populated with the same works requirements and quantities (and therefore costs) which would be applied to broad sweeps of properties. When actually coming to do the works, they realised this process was not a good reflection of the works required.
What were the variations? -
- Typical SoR work items - ref flashcard above
In QCCW, you mention rebuilding of a boundary wall - what was the SoR for these works ie SoR description, cost, units. What was the total cost?
You mention correct rates and measurement units for concrete repairs - what was the SoR for concrete repairs ie description, cost, units?
SoR for rebuilding the wall:
1015AA; Wall; rebuild wall in commons brickwork; Wall:Demolish as necessary, clean off and clear away, rebuild half brick wall in common bricks, bed and point in cement lime mortar (1:1:6) to match existing and remove waste and debris.
-£100/m2; 2m high x 7m long = 14m2
Total cost - £1,500
SoR for Concrete Repairs:
- 1460AA; SURFACES:REPAIR CRACKS, CONCRETE NE 5MM; UOM m2; £65/m2
Surfaces:Prepare, clean off all dust and debris, fill in or resurface cracks or spalled concrete surfaces of concrete with epoxy mortar over 300mm wide, repair ne 5mm deep, remove waste and debris.
