Wk 7 Construction

Question 1

Define FLASHING

Answer 1

a strip o impervious material fitted to cover a joint where water would otherwise penetrate

Question 2

define WEEPHOLE

Answer 2

formed openings in the perpend joints of a masonry wall above the level of a flashing to permit the drainage of water

Question 3

define LINTEL

Answer 3

a horizontal supporting member spanning over an opening such as a window or door

Question 4

define REVEAL (as it relates to openings in brickwork)

Answer 4

the side of an opening in a wall for a window or door

Question 5

define SILL

Answer 5

course of bricks at the base of an opening

Question 6

Name the 5 roof types you might be questioned on…

Answer 6

1. butterfly roof
2. gable roof
3. skillion roof
4. hip roof
5. hip & valley roof

Question 7

what are 3 techniques for preventing water from water passing through bricks and into building?

Answer 7

1. prevent water passing through by placing IMPERVIOUS PROTECTIVE LAYER OVER THE BRICKS (paint, render)
2. AIR GAP - a cavity between two skins of brickwork tied together with metal ‘brick ties’
3. RAIN SCREEN - layer 1: structural system clad with sheeting + waterproofed membrane 2. clips attached to sheeting 3. rainscreen cladding (NOT waterproof) attached to clips…

Question 8

What are the 3 types of masonry wall construction?

Answer 8

1. Cavity brick/stone/block
2. Solid (rammed earth, stone, concrete poured in situ)
3. Concrete block (lightweight or standard)

Question 9

What is heavy timber (or steel) framed wall construction?

Answer 9

Post & Beam with infill

Question 10

What is pitched roof construction (>15’)

Answer 10

Light timber (or steel) framed construction with tile or profiled steel cladding

Question 11

What is low pitched construction?

Answer 11

<15' 
Light timber (or steel) framed construction (often BEAMS &amp; PURLINS) with WATERPROOF MEMBRANE ON PLYWOOD or PROFILED STEEL Cladding

Question 12

What cladding is used for pitched roof construction >15’?

Answer 12

TILE or PROFILED STEEL

Question 13

what cladding is used for PITCHED ROOF LESS THAN <15’

Answer 13

WATERPROOF MEMBRANE ON PLYWOOD
or
PROFILED STEEL

Question 14

What is FLAT ROOF construction?

Answer 14

WATERPROOF MEMBRANE on REINFORCED CONCRETE SUSPENDED SLAB +/- RC/steel SUPPORT BEAMS
OR
FRAMED CONSTRUCTION with WATERPROOF MEMBRANE on plywood

Question 15

What cladding is used for FLAT ROOF construction?

Answer 15

WATERPROOF MEMBRANE (either on rc suspended slab OR plywood)

Question 16

When is LIGHT TIMBER (or steel) FRAMING USED?

Answer 16

where construction rooms/openings with
SPAN = ~6M
HEIGHT = ~5M
+ number of cross walls in plan

Question 17

When is POST & BEAM FRAMING typically used?

Answer 17

generally laid out on an orthogonal grid with

SPANS 3-8M