WorksheetsRainwater Systems QuizL3P2U8,1.2
Total questions: 10
Worksheet time: 5mins
What is the most common gutter profile used in the UK?
High capacity/Deep half round/storm flow
Half round
Ogee (O. G. or ornamental gutter)
Square Section
Which gutter profile has almost twice the capacity of half-round?
Half round
High capacity/Deep half round/storm flow
Square Section
Ogee (O. G. or ornamental gutter)
What does O.G. stand for in the context of rainwater systems?
Outdoor Gutter
Original Gutter
Ornamental Gutter
Old Gutter
Which rainwater pipe section is the most rigid?
Half round
Square rainwater pipes
Round rainwater pipes
High capacity/Deep half round/storm flow
What is the disadvantage of using square rainwater pipes?
Not as rigid as round pipe
Tends to block easily
Fittings can be spun in any direction
Common pipe size across all manufacturers
What is the advantage of using ogee guttering?
Offers a lightweight and long-lasting alternative to cast iron gutters
More rigidity than half-round type gutter profiles
Good capacity and flow rate
Must be installed to the correct fall
What is the disadvantage of using square section gutter?
Not all manufacturer’s gutters and fittings are interchangeable
It can silt up very quickly because of its flat bottom
Some makes are no longer available and will not fit modern equivalent shapes
Must be installed to the correct fall
What is the advantage of using deep half round or storm flow gutter profile?
It gives good flow when laid to the correct fall, with little sediment build up
Converters to other profiles and materials readily available
All manufacturers use a common size
Fittings are interchangeable between manufacturers
What is the disadvantage of using high capacity/deep half round/storm flow gutter profile?
It’s expensive when compared to other gutter profiles
Often incorrectly used on properties with large roof areas, causing the gutter to overflow
Has a tendency to silt up due to its elliptical shape
Must be installed to the correct fall
What is the advantage of using square section gutter?
Not all manufacturer’s gutters and fittings are interchangeable
Some makes are no longer available and will not fit modern equivalent shapes
Square section has almost twice the capacity of half round section and flow rates are acceptable when laid to the correct manufacturer’s fall
It can silt up very quickly because of its flat bottom
