SoE - Construction technology and environmental services Flashcards
What are the main types of curtain walling?
spandrel panel
shopfront window
rain screen cladding
Cladding = Cladding is the application of one material over another to provide a skin or layer. In construction, cladding is used to provide a degree of thermal insulation and weather resistance, and to improve the appearance of buildings
What is the RIBA plan of works ? and what are the stages ?
The RIBA Plan of Work organises the process of briefing, designing, constructing and operating building projects into eight stages and explains the stage outcomes, core tasks and information exchanges required at each stage.
0 - Strategic Definition 1 - Preparation and briefing 2 - Concept design 3 - Spatial Coordination - PA 4 - Technical Design - BC & T 5 - Manufacturing and Construction 6 - Handover 7 - In Use
How does the RIBA plan of Works 2020 differ from 2013?
More sustainable feature, sustainability, title of some of the riba stages, spatial coordination
Can you name some brick bonds?
Stretcher
Header
English
Flemish
What are some building ages/eras ?
Georgian - 1714 - 1830 Victorian - 1837 - 1901 Edwardian -1901 - 1920 Post war etc
How would you identify Japanese knotweed ?
RICS have an information paper
- Red or green/purple tinge
- Bamboo like appearance
- Zig zag stem
- Cream flowers
- Shovel shaped green leaves
What is a green roof ?
A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems.
Can you name some British standards ?
BS 8300 - Design of an accessible and inclusive built environment
BS 9999 - Fire safety in the design management and use of buildings
BS 9991 - Fire safety in the design management and use of buildings Resi
BS 845 - Specification for ancillary components for masonry - Wall ties, tension straps, hangers and brackets
BS 8000 - 12 - Decoration and wall coverings
BS - EN 459 - Building Lime
BS EN 998-2 - Specification for mortar for masonry
What is the built up of a warm roof ?
- Roof covering
- Insulation
- Vapour barrier
- Roof deck
- Joists
- Plaster board and plaster
What are the benefits of a single ply membrane ?
Benefits include : • Easy to install so in turn cheaper installation costs • Resistant to UV damage • Durable • Cheap to repair • Hardwearing • Various colour choices • Low maintenance • Recyclable • Longer lifespan
What is the use or need for a vapour barrier in warm roof construction?
To stop the internal moist air moving into the insulation and roof covering section. (interstitial condensation)
What are some additional considerations in relation for a cold roof?
- Floor to ceiling heights
- External roof heights
- Existing roof covering
- Ceiling joists location
- Cross ventilated cavity (to avoid interstitial condensation)
What potential material could you use for flashings?
- Galvanized steel, which is inexpensive but lacks the durability of other metals.
- Lead-coated copper.
- Anodized aluminium.
- Terne-coated copper.
- Galvalume (aluminium-zinc alloy coated sheet steel).
- Polyvinylidene fluoride.
What is a flashing ?
Flashing is a sheet of thin, impervious material used to prevent water penetration or seepage into a building and to direct the flow of moisture in walls. Flashing is particularly important at junctions such as roof hips and valleys, joints between roofs and vertical walls, roof intersections or projections such as chimneys, dormers, vent pipes, window openings, and so on.
There are two categories of flashing, exposed and embedded. Exposed flashings are partially exposed to the outside and usually made of a sheet metal, while embedded (or concealed) flashing can be metal or non-metal and are typically used at the base of cavity walls, above openings, at sills and shelf angles (a structural steel member that supports and transfers the brick’s dead load back to the building frame), and under copings.
Can you name some items of the roof structure ?
Can you some parts of a typical residential dwelling (the construction) ?
What sections of the building regulations did you consider in your case study project?
Section 2 Fire:
* wall linings,
* escape lighting,
* communication
Section 3 Environment:
* wastewater drainage,
* sanitary facilities,
* ventilation
Section 4 Safety:
* electrical safety
* fixtures,
Section 6 Energy:
* heating system,
* insulation of pipes and ducts,
* artificial lighting,
* mechanical ventilation,
* commissioning,
* written information
Sketch a warm roof
Sketch a cold roof.
What options are available for houses that cannot be connected to the main drains/sewers?
- Septic tanks
- Rain water harvesting
- Grey water irrigation
What is the first fix stage in construction?
First fix (sometimes described as shell and first fix ) is a short-hand term used to describe the processes that are undertaken during construction works up to the point of applying internal surfaces – typically plaster. It is normally used in relation to the work of specific trades such as carpenters, plumbers and electricians.
Generally first fix will include constructing the structure, cladding, flooring, doorframes, stairs and so on and installing cables for electrical and ICT distribution, pipework for water and gas distribution and heating ventilating and air-conditioning (HVAC) distribution. First fix is not normally visible when looking at the finished building. Where possible first fix should be tested before second fix (for example, plumbing riser stacks).
- Electrically – Installation of conduits and back boxes and pulling through cables ready for final connection.
- Mechanical – pipe and duct work put down or run accordingly ready to be boxed in
What is the second fix stage in construction?
Second fix takes place after the internal surfaces have been applied. It comprises those items that are visible in a finished area and are held back to avoid damage, or sadly sometimes theft. This may include fitting internal doors, skirting, architraves, handrails, fixtures and fittings, including connection of appliances (such as electrical equipment, sanitaryware, radiators, and so on) testing and commissioning.
Typically there will be a change of trades operating on the site, and a break in activity for some trades between first and second fix.
- Electrically – Cable connections and closing of plugs and switches, installation of lights and sensors.
- Mechanical – Mounting radiators, extending pipework to fixtures and fittings. Installation of ventilation.
What are the elements of a domestic heating and hot water system?
- Cold water storage
- Expansion tank
- Boiler
- Hot water cylinder
- Radiators
What are the elements of a domestic electric system?
- DB Board
- Consumer unit
- RCD - Residual-current device
- MCB – Minatare circuit breaker
What are the typical distances between ceiling joists in a rafter and purlin roof?
400-450mm centres
What is the difference between a gable, hipped and mansard roof?
- Gable – Triangular end supporting the two slopes.
- Hipped – all roof pitches meet at multiple or single ridge and slope down to all the walls.
- Mansard Roof – Steep front face pitch with a shallow pitch/flat roof on top. Usually have dormer windows projecting through.
What is the difference between a jack rafter and a common rafter?
- A common rafter is any rafter extending between the exterior wall and the ridge.
- A Jack rafter is a shorter secondary rafter used in the construction of a hipped roof
What is a flitch beam?
A timber beam sandwich. A steel plate is bolted between two timber beams to add strength. Lighter system to steel beam.
What issues should be considered when replacing a flat roof?
- Age
- Extent of repairs required
- Access
- Costs
- Planning requirements
- Use of the room
- Insulation
What are weep holes ?
Small openings in the outer wall of masonry construction and are found around openings above
Brick and stone are porous materials and can absorb and store water. The inclusion of weep holes in masonry walls is intended to serve two purposes:
Drainage: They provide an opening that allows the drainage of any moisture that may reach the back of a wall, or the inside leaf of a wall (such as a cavity in cavity wall construction) from the outside through penetration, capillary action, condensation, leakage or flooding.
Ventilation: They allow ventilating air to the back of a wall to help prevent mildew, dry rot and damp which might otherwise reduce the life or performance of building materials such as cavity wall-ties, cavity insulation and so on.