14 - Construction Technology and Environmental Services Flashcards
Construction Technology and Environmental Services - Extract from Candidate Guide - Aug 2018 (updated Feb 2022)
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 non traditional construction in your local ?
Airey House - Concrete pre fab columns with concrete panels fitted to these. With steel stud created at regular intervals to allow for placement of windows and doors.
Cussin - Steel framed house with opre cast concrete panel infuils externally finished with clay slip tiles or render. Defects linked to the steel frame and corrosion.
Both a result of demand for housing post ww2.
Can you name some brick bonds ?
What bond is your case study ?
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 are the types of mortar used ?
Type O
• Weak strength 350 PSI
• Used for repointing or some stone work
Type N
• Strength 750
• Common type with slow curing and good workability
Type S
• Strong 1800 PSI
• Used in exterior walls and foundations
Type M
• Strongest 2500 PSI
• Used in exterior walls, foundation and high load bearing walls
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
- Vapor 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)
How would you know if the proposed ventilation was suitable in terms of the requirements from approved documents?
I would references the required output in relation to the proposed ventilation looking at both approved document F - Ventilation and approved Doc C - Site preparation and resistance to contaminates and moisture.
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 flashing’s ?
- 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 building regulation did you considering in your case study project ?
Candidate specific
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