Case Study Interview Q's Flashcards
What Building regulations were pertinent to this project and Approved documents were considered as part of this project.
- Part A - Structure - Lateral Support, roof covering.
- Part B Vol1 &Vol2 - Fire.
- Part C - Site preparation and resistance to contaminants and moisture - roof ventilation.
- Part E - Resistance to passage of sound.
- Part F - Ventilation - extraction - Intermittent Systems - Kitchen-30l/s, Utility-30l/s, Bathroom-15l/s.
- Part G - Sanitation and water.
- Part L - Conservation of fule and power Vol1: Dwellings - Insulation - Roof U-val 0.16, 250mm insulation.
- Part P - Electrical Safety, residential.
What Industry guidance did you refer to?
The Care Inspectorate - Care Homes for Children and
Young People – The Design Guide
How long after Planning approval does the planning permission expire?
3 years, to comply with section 51 of the Planning and Compulsory Purchase Act 2004.
What Use Class is the residential care home?
Use Class C2
Why was an Arboricultural
Impact Assessment required?
In order to ensure the protection of existing trees having regard to Policy JP-G7 of the Places for Everyone Joint Development Plan.
What legislation is relevent to planning permission?
Town and Country Planning (Development Management Procedure) (England) Order 2015
When did cavity walls and cavity wall insulation come into use?
- Cavity walls 1920’s.
- Cavity wall insulation was introduced in the UK in the 1930s and became mandatory for new builds in 1995
How should cavity wall insulation be installed?
Fixed to the inner skin so not to bridge cavity for water ingress
What are the sections of the Approved Document part B
Vol 1: Dwellings.
Vol 2: Buildings other than Dwellings
Sections:
-Means of warning and escape
-Internal Fire Spread (Linings)
-Internal Fire Spread (Structure)
-Internal Fire Spread
-Access and facilities for the Fire Service.
-Regulations: 6(3), 7 (2)- Materials and Workmanship, external wall. and 38-Fire Safety Information
What Building Regulation Defines a ‘material change of use’ and self certify?
Regulation 5 -
British standard relevent to roof coverings?
BS 8000-6 Workmanship and code of practice
Why was the JCT Intermediate Building Contract with contractor’s design 2016 used?
named Subcontractor, over JCT Minor Works.
NEC wasn’t chosen due to clients, and my own lack of knowledge of it
Components of a roof?
Ridge plate
Rafter
Purlin (supports rafters)
Strut
Joists
Tie
Collars(fixed to rafter)
Hanger (fixed to collar)
Binders
Longitudinal Ties
What are your CDM Roles and responsibilities as a Designer?
I am aware that decisions I make can effect the health and saftey of others involved in a building, users, maintenance and demolition.
-Designers must make client aware of their duties under CDM2015 before starting any design work:
*ensure management arrangements are made, select & appoint a competent principal designer and principal contractor.
- When preparing or modifying designs:
- take account of any pre-construction information provided by the client or PD
- Eliminate any foreseeable H&S risks to anyone affected by the project & take steps to reduce or control any risks that cannot be eliminated.
- Provide design information to:
*principal designer for inclusion inthe PCI and H&S file. - the client and (principal) contractor to fulfil their duties e.g. construction phase plan.
- Communicate cooperate and coordinate with:
*other designers, so designs are compatible and ensure H&S during and beyond project.
*all contractors to take account of the their knowledge and experience of building designs.
What does part B vol 1 deal with?
Volume 1 deals solely with dwellings, including blocks of flats - *Dwelling Includes a dwelling house and a flat.
What was the Procurement route
Traditional competitive tender from a frame work.
-Design kept separate from construction.
- Lump sum priced
What method of tendering
Framework agreement
What guidance notes are there for tendering ?
RICS Professional Guidance, Tendering Strategies.
Why did you use Contractor Design for M&E and internal and External wall insulation
I did not have the technical understanding of these aspects/elements
What is included in the planning submission?
- Existing elevations and proposed elevation Drawings and sections
- Site plan @1:200
-Location Plan @ 1:1250
Planning Application Contents: - Existing use
- Description of existing and proposed materials and finishes(type and colour)- floors, walls, Boundary, Windows, RWG soffits facias
- Pedestrian and vehicle access.
- Tree and Hedges, bio diversity/net gain
What is included in a building control ‘Full Plan Application’ ?
Set of final plans - ad’s: ensures all design and construction aspects are up to standard which allows more accurate quotes from contractors, minimises extra work being discovered
What are the different types of planning consent?
Householder planning consent
Full planning consent
Outline planning consent
Reserved Matters
Listed building consent
Advertisement consent
Lawful Development Certificate (LDC)
Prior Approval
Removal/variation of conditions
Approval (Discharge) of conditions
Consent under Tree Preservation Orders
Non-material amendment of an existing planning permission
Interim payment timeline?
Interim Valuation Date (IVD):
This is the date used to determine the value of the work completed and materials on site for the interim payment.
Due Date:
The due date for each interim payment is 7 days after the relevant Interim Valuation Date (IVD).
Final Date for Payment:
The final date for payment of each interim payment is 14 days from its due date, meaning 21 days from the Interim Valuation Date.
Payment Notice:
The employer must issue a payment notice, stating the sum they consider due, no later than 5 days after the due date.
Interim Certificate:
The architect/contract administrator must issue an interim certificate, stating the amount due, no later than 5 days after the due date.
Pay Less Notice:
The employer can issue a “pay less notice” if they disagree with the amount claimed by the contractor, but this must be done no later than 5 days before the final date for payment.
Design and Build Contract:
Under the JCT Design and Build Contract, if the contractor’s interim payment application is received after the IVD, the due date becomes 7 days from the date the application is received.
Subcontractor Payments:
In the JCT Design and Build Subcontract, the due date for interim payments is 12 days after the relevant Interim Valuation Date, or 16 days after the date of receipt of the payment application if received late
What certificate did you issue/
- Valuation certificate
- Certificate of practical Completions (or section completion)
- Certificate of making good defects
- Certificate of non-completion
- Final certificate
What Contract Notices are there?
- Default payment notice
- Notice of a delay or likely delay.
- Notice of intention to refer to dispute to an adjudicator.
- Notice to proceed
- Notification of an extension of time
- Pay less notice.
- Termination notice.
Dow do you determine appropriate material build ups?
Building regulations approved documents, Manufacturers of materials such as Gypsum’s white book, or in the case of roof covering, Tyvek and Cembrit Westland, British Standards, Installation Assurance Authority.
What was the typical agenda of a site meeting?
-Introduction
-last minutes
-H&S
-Progress/programme
-Client points
-Contractor points
-Any other issues
-Date of next meeting
What were the works valued against?
-Programme of works
-% of completion as observed
-Tender/Pricing Document
-Any contract instructions
Give me an example of construction technology knowledge that was improved as a result of this project.
-Roof coverings: Underlay, eave and ridge ventilation/cross ventilation, battens, dry verge, tilting fillet
- Structural Steel installation: padStones-440x215x100 , and minimum 150mm of wall for double door lintel.
Gable wall strapping for Lateral restraint.
- Insulated cavity closers on windows
- External wall insulation- building materials first then mechanicals
What are the types of Building Regulations approvals
-Full plans:
-Building Notice: homeowners small uncomplicated works
Regularisation
How cracks can form in buildings?
methods of measuring cracks, identifying active cracking
Tell Tale Gauge
Tape , dra line and measure, if distance increases movement still active.
Glass and Epoxy
Internal signs of structural movement?
Sloped floors, bulging walls, doors that do not it, movement of material features i.e. sills and lintels
What size cracks?
Generally speaking, cracks that are wider than 15mm, or that appear suddenly, should be investigated without delay by a surveyor or structural engineer.
Moderate: 5-15mm wide cracks may need professional building work
Severe: Large cracks up to 25mm
Very Severe: Cracks wider than 25mm
The most common causes of cracks in buildings are:
Ground movement caused by clay shrinkage, land slip, vibration, subsidence, settlement, heave, sway, and so on.
Foundation failure due to the decay of soft clay brick, concrete erosion due to chemical contaminants, and so on.
Decay of the building fabric, due to woodworm, rust, wet rot, dry rot and so on.
Moisture movement that causes materials to expand or contract. Excess water, and water penetration can be caused by the presence of vegetation, faulty or damaged drains, flooding, damage to the building fabric, condensation and so on.
Thermal movement that causes materials to expand or contract as temperature increases or decreases.
Inherent defects, particularly in historic structures.
Deformation under excess load.
Tree root growth.
The absence of foundations in older buildings.
Alteration works to the building or neighbouring properties (Note, occupants may see cracks that have been there for some time, but are only noticed when works are taking place).
What do the shapes of cracks in buildings mean?
Hairline cracks are common in many buildings, particularly in plaster, which is prone to shrink and is very sensitive to movement, particularly if the supporting structure is old, or timber frame. The timber frame will move over time, but the plaster will not - and so it cracks.
Stepped cracks tend to follow the lines of horizontal and vertical joints in buildings, such as beds of mortar between bricks or blocks and may indicate structural movement.
Vertical cracks may indicate that structural components such as bricks or blocks have failed and so can be a sign of significant stresses within the building structure.
Cracks that are wider at the top or at the bottom may indicate that there has been foundation movement, with the direction of the widening giving an indication of the likely direction of the movement.
Horizontal cracks may indicate that an element such as a wall is failing and this may present a safety concern.
Heave cracking?
Cracking to brickwork and windows. This cracking is more likely to be vertical, whereas subsidence cracking is more likely to be diagonal.
Doors sticking as their frames become out of square.
Lifting of paths and patios surrounding buildings.
