Wk 7 Construction Flashcards
Define FLASHING
a strip o impervious material fitted to cover a joint where water would otherwise penetrate
define WEEPHOLE
formed openings in the perpend joints of a masonry wall above the level of a flashing to permit the drainage of water
define LINTEL
a horizontal supporting member spanning over an opening such as a window or door
define REVEAL (as it relates to openings in brickwork)
the side of an opening in a wall for a window or door
define SILL
course of bricks at the base of an opening
Name the 5 roof types you might be questioned on…
- butterfly roof
- gable roof
- skillion roof
- hip roof
- hip & valley roof
what are 3 techniques for preventing water from water passing through bricks and into building?
- prevent water passing through by placing IMPERVIOUS PROTECTIVE LAYER OVER THE BRICKS (paint, render)
- AIR GAP - a cavity between two skins of brickwork tied together with metal ‘brick ties’
- RAIN SCREEN - layer 1: structural system clad with sheeting + waterproofed membrane 2. clips attached to sheeting 3. rainscreen cladding (NOT waterproof) attached to clips…
What are the 3 types of masonry wall construction?
- Cavity brick/stone/block
- Solid (rammed earth, stone, concrete poured in situ)
- Concrete block (lightweight or standard)
What is heavy timber (or steel) framed wall construction?
Post & Beam with infill
What is pitched roof construction (>15’)
Light timber (or steel) framed construction with tile or profiled steel cladding
What is low pitched construction?
<15' Light timber (or steel) framed construction (often BEAMS & PURLINS) with WATERPROOF MEMBRANE ON PLYWOOD or PROFILED STEEL Cladding
What cladding is used for pitched roof construction >15’?
TILE or PROFILED STEEL
what cladding is used for PITCHED ROOF LESS THAN <15’
WATERPROOF MEMBRANE ON PLYWOOD
or
PROFILED STEEL
What is FLAT ROOF construction?
WATERPROOF MEMBRANE on REINFORCED CONCRETE SUSPENDED SLAB +/- RC/steel SUPPORT BEAMS
OR
FRAMED CONSTRUCTION with WATERPROOF MEMBRANE on plywood
What cladding is used for FLAT ROOF construction?
WATERPROOF MEMBRANE (either on rc suspended slab OR plywood)
When is LIGHT TIMBER (or steel) FRAMING USED?
where construction rooms/openings with
SPAN = ~6M
HEIGHT = ~5M
+ number of cross walls in plan
When is POST & BEAM FRAMING typically used?
generally laid out on an orthogonal grid with
SPANS 3-8M
