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Case Study Flashcards

1
Q

What is the remedial solution for limestone decay caused by sulphur staining.

A
  • Undertake a pre-cleaning survey to establish the condition of the stone.
  • Decide on a method of cleaning inc. brushing, water based methods, chemical methods or even lasercleaning.
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1
Q

What are some common defects of Bath stone?

A
  • Limestone decay is caused by sulphur dioxide trapping pollutants and impacting the natural flow of water. This can be worsened near roads.
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2
Q

What is the current Bath office market?

A
  • ## 2-5k office is the sweet spot so no need to subdivide the space further.
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3
Q

What causes the asphalt terrace upstands to crack?

A

Lack of maintence and prolonged weathering. It is anticipdated that the asphalt covering is in excess of 30 years old.

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4
Q

What was the reason you chose an Intermediate Contract w/ CDP?

A
  • Trad Procurement
  • Tender documents complete
  • ## Slightly more complex of a project than a MW with some lighting installations
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5
Q

Was the provisional sum for the terrace repairs, defined or undefined?

A

Undefined , as the extent of the works was unknown until further investigations were undertaken.

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6
Q

What were the works priced against?

A

A specification.

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7
Q

What documents are issued under the JCT Intermediate Contract

A

Certificates
Cert if non-completion
Certificate of Practical Completion

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8
Q

What section is the CDP Design Work in for Intermediate Contract?

A

2.32

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9
Q

Why did you chose a negotiated over a two stage?

A
  • Quicker into contract.
  • ## Client wanted cost certainaty prior to entering into a legal agreement
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10
Q

How long should code 4 lead flashing be?

A

typically no more than 1500mm, however for asphalt it is recommended not to exceed 1000mm lengths.

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11
Q

Why Code 4 over other codes of lead?

A

It is more durable than 3, and more malleable than 5-8.

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12
Q

What does the Code of lead refer to?

A

Its weight and thickness.

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13
Q

Do you need building regs approval to apply the polyurethane liquid applied covering?

A

This would not require building regs approval as it is not considered a roof it is a terrace/ gutter.

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14
Q

What is the guidance under Part M, you are referring to for the installation of the latex?

A

For accessible entrances , it is recommended that a threshold level does not exceed 15mm, and if above 5mm it is chamfered or rounded.

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15
Q

What is the working at height regulations hierarchy?

A

The hierarchy pyramid states;
- Avoid work at height
- Collective fall protection
- PPE Work restraint
- PPE Fall arrest

From most to least effective Fall protection

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16
Q

What are the eight controls for working at height?

A
  1. Avoid Working at height
  2. Ensure all those working at height are properly trained and supervised
  3. Select work equipment that prevents falls
  4. Ensure equipment is suitable, stable and strong
  5. Regularly check and maintain equipment
  6. provide necasssary PPE and proection from falling objects
  7. Ensure the working environment is safe
  8. Plan for emergencies and rescues
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17
Q

Did you need to obtain building control approval?

A

No these works did not require building control with no alteratering to building structure, just removal of demountable partitions.

The lighting work was undertaken by a Part P competent electrician who can certify there own installations and provided the test certs to prove it.

18
Q

How could you have chosen a suitable contractor to begin negotiating with?

A

A list of improved contractors that my firm holds that have been categorised for suitability in different sectors and project sizes.

19
Q

Why did you have a CDP and what was it?

A

This was for the design of the lights, and we did this as although having an mep consultant undertsake the design would enable more control, with the tight programme it was felt that getting into contract and onsite quickly was the best bet.

20
Q

What were some of the agreed amendments to the contract?

A
  • Wording around the liabilty of the employer making it more specific for the the corporate fund structure and limiting liability of the employer to ensure the contractor has no recourse over assets in other sister trusts.
  • changes in the standard payment terms
21
Q

How did you identify the dampplaster?

A

Visibly and bubbling flaking plaster

22
Q

Would you need BCA for the liquid applied ovrcoating?

A

No i did not consider this to be required due to it only being the gutter which comprises less than 25% of the building envelope and less than 50% of the roof.

23
Q

Was the carpet coverig the contractors responsibility?

A

No the contract amends stated rhst unseen site conditions would fall under a relevant event under the jct contract and entitle the contractor to an EOT.

24
Q

What other part M guidance are you are of?

A

Clear widths of accessible doors
800mm on new buildings and 750mm on existing buildings

25
Q

What did you put in place as CDM PD?

A

PCIP
- Summary of significant construction hazards inc. occupied building, rof works, asbestos, fire, etc
- project details
- CDM lead in period
- requirment of the PC and there deliverablles

26
Q

When was the cdm lead in period?

A

I run this concurrently within the contract finalisation stage, allowing a further qeek of access before a gard start on site.

27
Q

How did you ensure that compliance with Part M was maintained when installing the latex floor finish?

A

I know that the tollerance under Part M is 15mm with any step over 5mm requiring a chamfered edge.

When installing i instructed the contractor to slightly raise the level of the lobby carpets to provide a flush entrance threshold into the demise.

28
Q

Throughout the project, how did you manage communication with the client and other stakeholders to keep them informed and involved in decision-making processes?

A

I provided weekly feedback to the client during the construction period, sharing progress photos and email updates on work on site and any variations.

I met with the contractor fortnightly on site to walk and discuss progress.

I regularly provided updates to the property manager to feedback to the tenants on upcoming works within the building.

29
Q

Could you provide examples of how effective communication impacted project outcomes?

A

Through concise and regular communication with the client i was able to receive prompt approval on any instructions ensuring that the project programme was not impacted.

30
Q

Reflecting on your role as Contract Administrator, how did you manage the various aspects of the project from the pre-contract phase through to completion?

A

As Contract Administrator, i am aware my role commences following the execution of the contract, however as the Project manager i was involved during the the pre-contract stages in collating the client brief, putting together a detailed scope of work, undertaking procurement process.

During the post-contract phase, i administered the contract whilst also ensuring that the contractor was keeping to the construction programme.

31
Q

Considering the complexities of the refurbishment, how did you identify and mitigate risks during the project?

A

Although not a complex project, i created a risk register that captured potential project risks and their liklihood ensuring that mitigating procedures were in place should this occur.

  • Weather - undertaking the terrace works required dry weather
32
Q

When preparing for this instruction, using your knowledge of 1980s construction, what potential defects did you discuss with your client and the project team?

A
  • Limestone Decay
  • Conc reinforcement decay i.e. Carbonation or Chlorides
  • ## Deleterious Materials
33
Q

What is bath stone?

A

Is a form of limestone and is used extensively in bath and across the south of england.

34
Q

During your project, what considerations did you give to the fact the client has Plans to redevelop in 2023?

A
  • Undertaking replacement works on the old VRF system.
  • Replace the single glazed windows

However would have required disruptive and expensive works, that would be easier to undertake with full vacant possession.

35
Q

Using the chosen procurement route (negotiated), are there any other measures you can introduce to help protect your client against costs?

A
  • benchmarking with other tendered rates
  • review against internal parameters
  • employ a QS to provide expertise
  • use cost databases
36
Q

Can you talk me through your process for comparing the rates previously received and how you might benchmark these to today’s standards?

A

I pulled out the rates used for comparable works.
- i applied inflationary indices off BCIS
- I ensured that quantities were similar where possible and took this into account where it wasn’t

37
Q

How did you ascertain that the anchor point was safe to use?

A

I reviewed the working at height regulations and went through the hierachy of fall protection in coming to this solution.

38
Q

Did you consider any other methods to safely inspect the area of roof in question?

A
  • I considered using drones, however would not have been able to get a good look in this area of the gutter and upstand.

Furthermore knowing that works would likely be required access to this area would be required and therefore emplying the same systme for both the investigations and repairs seemed wise.

39
Q

I assume that you presented a cost breakdown of each of they systems. Can you talk me through the costs of each repair method.

A
  • £1200 EPDM repair
  • £4,500
  • £16,500 for liquid applied of whole gutter detail
  • £7,300 for around affected areas with scaffold to these elevations (c. 5200 scaffold cost for works to the few elevations.
40
Q

What is the methodology for installing a EPDM membrane patch repair.

A
  • Prepare the substrate by cleaning and sanding if required
  • self adhesive reinforced 1.3mm strip
41
Q

Did you consider planning implications for any of the gutter repairs?

A
  • For all options, I reviewed the Town and Country Planning Act 1990 and considered that this did not fall under the requirements of planning as it was a repair to the gutter.

I also had this validated by my internal planning team who confirmed this was the case.

42
Q

If you wanted to install a scaffold to this elevation, what leglislative and technical measures would you undertake.

A

Technical
- Get a competent eningeer to design a suitable scafold solution

Legislative
- Follow National Access and Scaffoldng Confederation guidance
- Licence to put it on public highway
- Access Licence
- Scaffold licence
- Access to Neighbouring land act 1992

43
Q

What would you do if the adjoining tenant refused access to put up a scaffold?

A
  • I could look into obtaining access via the Access to Neighbouring Land Act 1992. This would be in court and be an expensive and time consuming process.

APC (24 decks)

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