British Museum Flashcards
In Contract Practice, you mention this is a small project - what was the PTE?
You mention LAD, what value did the client propose to you?
£230k
Zero - did not want risk factored in to the tender submission
In Construction Technology, you mention the following - please state the costs, duration, how measure, the following -
Removal of adjacent concrete plinth and rehousing M&E plant
Installation of mastic asphalt skirting
Installation of rainwater gully
Re-rendering wall in lime render
How did you know a large cost saving was possible by using an alternative method of waterproofing?
Please state the costs, duration, how measure, the following -
Applying water penetration to inside walls and concrete slab (RIW Toughseal)
Reconfiguration of rainwater drainage (slot drainage channel and new gully)
Plinth: £7000 (PSUM - plant, labour, materials)
Rehousing M&E: inc above
Plant reconnect: £1500 (PSUM - plant, labour, materials)
Mastic Asphalt (upstand): £250/lm
Rainwater Slot Drainage: £50/lm
Rainwater Gully inc connection: £500
Re-render wall in lime render: £150/m2 (double cement render)
RIW Toughseal: £100/lm
Replaster internal walls: £20/m2
All works to the south elevation (internally and externally) including below ground drainage, as a result plinth not need move and RIW to be installed. - Omit: £25k, Add £10k (saving £15k) - was lime render and asphalt plinth still installed? - no, no longer required.
Omission: £25k
(£15k: rendering (lime); rendering (cement); internal plastering;
£1.5k drainage;
£1.5k plant reconnect;
£7k plant and plinth
Addition: £10k
(£4.5k access, reinstatement, repair internally
0.5k drainage
£5k apply RIW to floors and walls
Saving (inc time): £10k
Time implications:
-Investigative works needed to be carried out followed by design of solution which added time.
-Works themselves: overall reduction of time ie much less external works (just drainage), increase in already planned internal works (plasterwork replacement area increased)
Overall: say, 1 week additional time
I knew a large saving possible by instinct firstly (removal of plinth, relocation costs, no lime rendering, no asphalt skirting?) high vs access and then treatment to slab and walls, repair, reinstatement). I then calculated the omissions, added the estimated additions including additional time allowance and identified a saving.
In Procurement and Tendering, you mentioned you put together the tender docs and issued - what was the PTE for this tender? Some estimated costs eg PSUMs?
You mention new M&E reports and an addendum - did you estimate new costs/duration for the works involved? How did you go about developing these costs/duration? Did you update the PTE?
You mentioned issuing the Tender Report - what was the contract sum? How did this compare with the updated PTE?
PTE - £230k (same as eventual contract sum)
PSUMs:
Weatherboarding repairs £1000
Masonry repairs (after render removed) £1,000
Relocation of plant/plinth £7000
Replacement of roof hoppers (iron) £1500
Yes, additional work costs of circa £50k (estimated costs supplied by M&E surveyor (inflation updated)) Time: additional 2 weeks - spoke with M&E surveyor.
PTE - yes, £280k, updated and informed the client tender returns are now going to be overbudget and VE will need to be implemented after tender returns.
M&E:
flashcard somewhere?
Lowest tender submitted after adjustment circa £270k (£40k over budget)
Tender Report issued recommending contractor for £270k and that VE exercise be undertaken to get costs back down to below budget.
Contract Sum after VE and Scope reductions: circa £226k
In PFCR, you mention a number of variations - what were these and how did you measure, cost, estimate duration? What was the total cost (and duration)?
Mainly as a result of:
RIW works (£10k saving, ref earlier flashcard)
No need to remove the plinth; (inc above)
Heating Pipework Alterations (£5k)
8 nr altogether (expenditure of PSUMs)
RIW Works:
-Additional works to internal walls of Studio -(Removal or an additional 9.5m2 of existing plaster - 2nr operatives 6hrs each;
-Remove timber sub floor to allow for RIW works and reinstate on completion - 1nr operative 2 days;Install additional RIW system;
Re instate new lime plaster;
Decorations to wall;
Heating Pipework Alterations (Unforeseen heating and pipework repairs) ;
Gulley Cover, SS to Iron.
additional ‘damp areas’ identified for removal -
internal plaster words (live);
external render works (live).
£42,263.62 (£10k added for EoT Claim)
You also mention a L&E claim - please explain how this was claimed by the contractor, assessed by yourself, and cost calculated?
The below needs to be much less detailed !? Ref other Flashcards on generic assessments of EoT and L&E. :
Processs of validating causes, review any concurrent works, how critical path affected; contractor tried to minimise impact (appropriate rescheduling?).
Delay of above agreed at 5 weeks (£9.5k)
Costs based on preliminary items list and other costs submissions the contractor made re site office overheads, loss of profit
Loss of profit calculation:
Baseline profit documentation.
Compare expected vs. actual profit.
Link event to profit loss.
Efforts to mitigate loss.
Direct costs:
labour, materials, subcontractors and provide supporting documentation such as invoices, receipts, and payment certificates
Overheads:
Contractor identify and allocate these overheads directly attributable to the event; then determine a suitable allocation basis, such as project duration or value proportion; highlighting any increased costs, inefficiencies, or disruptions caused.
In QCCW, you mention assessing an EoT - what was the process for claiming and assessing this? What duration was claimed for and what duration was agreed?
You also mention assessing L&E - what was the process for claiming and assessing this? What was claimed and what was agreed?
In relation to this assessment of L&E you state that the costs claimed were in accordance with the Preliminary costs - what were these costs, how were they calculated, and should agreement of L&E (prolongation in this instance) be based on contract rates? Other than scaffolding that you mention, were any other costs included in the claim and agreement eg main office overheads, loss of profit, unproductive working, etc?
Same comment as previous slide ie too much detail. In relation to how I built up costs for L&E I should go into generics ie Hudson Formula for overheads, no claim for loss of profit, prolongation ie prelim rates, additional prolongation costs ie the scaffolding. If asked should prolongation be based on prelims I should say time related prelims give indication and client agreed to accept the cost despite not being actual costs.
Processs of validating causes, review any concurrent works, how critical path affected; contractor tried to minimise impact (appropriate rescheduling?).
Delay of above agreed at 5 weeks (£9.5k)
Costs based on preliminary items list and other costs submissions the contractor made re site office overheads, loss of profit
Loss of profit calculation:
Baseline profit documentation.
Compare expected vs. actual profit.
Link event to profit loss.
Efforts to mitigate loss.
Direct costs:
labour, materials, subcontractors and provide supporting documentation such as invoices, receipts, and payment certificates
Overheads:
Contractor identify and allocate these overheads directly attributable to the event; then determine a suitable allocation basis, such as project duration or value proportion; highlighting any increased costs, inefficiencies, or disruptions caused.
In DECP, you mention VE prior to going into contract - how much over budget was the lowest adjusted tender return? Why over budget? Could the ‘problem area’ (discrepancy with PTE) be resolved?
Please take me through this VE exercise that was proposed? What items were VE’d?, why?, change in costs?, change in programme? resulting agreed VE? Scope reduced where, why, omission value, change in programme?
What was the final agreed Contract Sum?
You specifically mention the following - what was the value, how measured, how costed (in estimate) -
rectification of water penetration
M&E works
Ref above (£40k)
Ref above (M&E additional works )
No
VE process - ref other flashcards
VE item changes:
Windows overhauled not replaced (£5k to £1.5k)
Kitchen upgraded not replaced (£3k to £1k)
External Paving patch replacement, not full (£5k to £1k)
M&E (????) overhaul not replace (£???) - ref other flashcard somewhere.
Scope reductions:
Back of House redecorations omitted (£10k to £0)
Install new skirting omitted (£2k to £0)
Replace lighting omitted?? (£50k??)
Change in programme - 3 weeks?
£226K
Water penetration prevention: £10 (ref earlier slide)
M&E works: ref other flaschard somewhere?
In Contract Admin, you mention issuing instruction - what was the value of:
-Omission of PSUMs (eg was minor roof repairs). What was the value of the firm costs?
What final works were remaining and what was the value?
You mention omitting works not rectified - what works and what value? What was the Final Account sum in the end?
PSUMs (ref’d in earlier flashcard)
Weatherboarding repairs £1000
Masonry repairs (after render removed) £1,000
Relocation of plant/plinth £7000
Replacement of roof hoppers (iron) £1500
Others …live plaster, lead repairs, …
Totals of FA below. Specific for PSUMs:
Omitted £26k
Added say, £15k
Remaining - Final works ref other flashcard
FA sum:
-Works - £170k
-Variations -£40k
-PSUMs - £26k
-Contingency - £30k
-L&E - £10k
TOTAL, say, circa £220k.
