Outcome 4 - Drainage

What is the focus of Building Regulations Part H?

• Electrical safety

• Drainage and waste disposal

• Fire safety

• Structural integrity

BS EN 12056: pt 1-5 is related to which type of drainage systems?

• Electrical systems

• Gravity drainage systems inside buildings

• Ventilation systems

• Heating systems

Which type of rainwater system is used with a separate system of drainage?

• Combined sewer

• Water course

• Surface water drain

• Rainwater harvesting

What is one of the main benefits of rainwater harvesting for householders?

• Increases water bills

• Saves large volumes of mains water

• Increases pressure on water resources

• Reduces the need for plumbing

What are the key factors to consider when installing a rainwater system to ensure it can handle the expected flow of rainwater?

• Rainfall intensity, roof area, position and number of outlets

• Temperature, humidity, and wind speed

• Soil type, vegetation, and sunlight exposure

• Water quality, pipe material, and color of the roof

What factor usually determines the position of a running outlet in a rainwater system?

• The color of the gutter

• The location of the drains of the property

• The amount of rainfall

• The size of the roof

What is the purpose of the gradient of the eaves gutter according to BS EN 12056?

• To allow rainwater to run off the roof and miss the gutter

• To ensure rainwater is collected efficiently

• To increase the speed of water flow

• To reduce the amount of rainwater collected

What is the standard fall ratio for gutters as interpreted by most manufacturers?

• 1:500

• 1:600

• 1:700

• 1:800

Why should too many changes in direction without an outlet be avoided in a gutter system?

• It increases the water pressure

• It can cause blockages

• It reduces the efficiency of water flow

• It makes installation easier

What is the most common material used for standard domestic guttering and downpipes?

• Aluminum

• PVCu

• Copper

• Steel