Inappropriate box gutter size for the roof catchment area.
Box gutter sump regulations.
Architects draftpersons builders and other.
In victoria the installation of box gutters is regulated plumbing work that must be carried out and certified by suitably registered licensed plumbers.
Either a rainhead or sump.
A rainhead or sump is a container located between the gutter and downpipe that aids the flow of water away from the roof.
Overflows in box gutter.
The total flow is used to size the sump and overflow.
Each box gutter run must discharge independently to ether a sump or directly out of the building without changing the size of the gutter or changing direction.
Saa snz hb114 1998 ci 3 4.
Ensure that the overall design and installation will be compliant with relevant regulations.
As an alternative the top of the rainhead may be installed so that it is no higher than 50 per cent of the flow depth of the box gutter consistent with saa hb39 installation code for metal roof and wall cladding section 5 clause 5 7 3 and figure 5 7 3 to prevent internal flooding or damage to the building or contents see figure 2.
A box gutter is defined as a graded channel generally of a rectangular shape for the.
Saa snz hb114 1998 ci 3 6.
Rainheads are an essential design element for buildings where internal box or trough gutters are used.
This free online box gutter calculator will calculate the size of box gutters and sumps with a vertical high capacity overflow in accordance with the australian plumbing code as nzs 3500 3 2003 part 3 storm water drainage.
Vba openly disclose that they do not use the bca code as it believes their regulations are far more thorough and make construction in victoria of a better standard for the.
Installing box gutters to achieve compliance with relevant regulations.
Plumbing regulations 2008 part 2 r 14.
Box gutters plumbers must install a box gutter system in accordance with as nzs 3500 3 as nzs 3500 5 hb 114 and hb 39.
Insufficient number of downpipes appropriate for the roof catchment area.
The side with the maximum flow is used to size the box gutter.
It acts as an external overflow point to reduce water surges into the stormwater system and aid the flow of water down.
As nzs 3500 3 2003 ci 3 7 5 1.
Method for design of eaves gutter systems.
This free online box gutter calculator will calculate the size of box gutters and sumps with a side overflow in accordance with the australian plumbing code as nzs 3500 3 2003 part 3 storm water drainage.
