Method for design of eaves gutter systems.
Box gutter regulations nsw.
This has become a big issue in the past few months particularly in victoria and is going to be a new section in the upcoming.
Peter coll provides a timely update regarding the provision for overflow and box gutter compliance.
In my last article i discussed the emergence of the issue of provision for overflow in external eaves gutters or more specifically the lack of provision for overflow.
The new regulations from the victorian building authority have changed the compliance requirements for guttering to ensure that eaves are not damaged by overflowing water during a major rainfall event.
As a box gutter is usually located above a room or space in a building there is an increased risk that rainwater overflow could cause damage to the building or cause loss of amenity to.
New regulations went into force on 1st january 2016 to correct this issue.
The builder or guttering installer needs to make sure the gutter system is fully compliant with nsw laws and australian standards.
Ncc volume two part 3 5 2 a box gutter is typically a gutter that is set into the slope of a roof.
Architects draftpersons builders and other practitioners responsible for designing a box gutter should work closely with the roof plumbers that will install the box gutter to ensure that the overall design and installation will be compliant with relevant regulations.
This document is also adopted by nsw fair trading.
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.
Installing box gutters to achieve compliance with relevant regulations.
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.
The page 6 diagram figure 5 shows downpipes 1 3 both serving approximately 15 metres of guttering the gutter length between the high points and downpipes 3 4 are shown as approximately 16 metres apart.
What s in the new guttering legislation.
But the main reason for its name is because it is boxed in on all sides.
Typically a box gutter is trapped between two roofs that feed rainwater into it.
The width of the rainhead is to be at least equal to the width of the box gutter and the box gutter needs to.
A box gutter may look like a box because of its boxy shape.
