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Box Gutter / Rainwater Head

For a box gutter to work at its best, it has to have an emergency overflow so that water has somewhere to go in the event of the gutter being blocked or extremely heavy rainfall. If there is not such an overflow, the water will go straight into the roof space and into your building and this can cause a number of problems.  Most good box gutters have the emergency overflow however.  For further protection, you can also install a gutter guard so that leaves and debris cannot block up the gutters and you also have the advantage of birds, pests and other vermin being unable to enter your roof space.  The box gutter also needs to be correctly sloped to the outlet points in order to prevent ponding (water standing in the gutters and potentially causing corrosion).

Rainheads are an essential design element for buildings where internal box or trough gutters are used. A rainhead or sump is a container located between the gutter and down pipe that aids the flow of water away from the roof. It acts as an external overflow point to reduce water surges into the storm  water system and aid the flow of water down the down pipe. Because rainheads are positioned outside, they minimise the risk of water overflow inside a building. The addition of an overflow provision provides even greater protection against water overflow in extreme conditions.

This video from Dam Busters explain how rainheads are installed and works


Covering Melbourne, Eastern and South Eastern Suburbs

  • Box Hill
  • Balwyn
  • Bulleen
  • Camberwell
  • Canterbury
  • Doncaster area
  • Glen Iris
  • Ivanhoe
  • Hawthorn
  • Surrey Hills
  • Toorak
  • Brighton
  • Middle Park
  • South Melbourne
  • Caulfield
  • Richmond
  • Elsternwick
  • St.Kilda
  • Elwood
  • and surrounding suburbs

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