Publication

Amendment

Bulletin 350 Sizing gutters
and downpipes

The maximum permitted area of roof (in m2) discharging to a given downpipe size given in Table 3 is significantly different from that specified in E1/AS1. This may result in the downpipe being overloaded in maximum rainfall conditions. Please delete Table 3 and replace with Table 5 of E1/AS1. Figure 3 of E1/AS1 may also be used to assist in sizing downpipes for given flow rates.

Bulletin 457 Ventilation of enclosed subfloor spaces

Note that, while E2/AS1 only requires ventilation under suspended timber floors, BRANZ recommends as good practice that ventilation is also designed for under suspended concrete slab floors.

Bulletin 472 Waterproof
decks

Download Bulletin 472 supplement.

Bulletin 477 Solar water heating

Download Bulletin 477 supplement.

Bulletin 478 Rainwater collection for domestic use

Download Bulletin 478 supplement.

Bulletin 481 Timber windows

Download Bulletin 481 supplement.

Bulletin 495 Stair design

Figure 6(b) - The tread dimension should read 266 to give a 35º pitchline. Figure 6(c) - The pitchline for the dimensions given should be 31.85º, and not 33.1º as noted.

Bulletin 498 Preparation for concrete floor slabs

Paragraph 12.0.2 of this bulletin refers to shrinkage control joints and states that: "Mesh reinforcing to the slab must stop each side of the joint." This is not correct - stopping the reinforcement each side of the joint creates a ‘free joint', not a shrinkage control joint. The mesh in a reinforced concrete slab-on-ground should not be cut when cutting/forming a shrinkage control joint. See Build 84 Oct/Nov 2004 p35 for more information.

Bulletin 515 Measuring moisture in timber and concrete

In the first issue of this bulletin, the corrected moisture content percentages for boron-treated radiata pine given in Table 2 were wrong. The correct figures are:

This Bulletin has been reprinted and is available for download from this website or as a printed version.

Good Practice Guide: Internal Linings

Download 2008 update supplement.

Good Practice Guide: Profiled Metal Roofing

The maximum permitted area of roof (in m2) discharging to a given downpipe size given in Table 11 is significantly different from that specified in E1/AS1. This may result in the downpipe being overloaded in maximum rainfall conditions. Please delete Table 11 and replace with Table 5 of E1/AS1. Figure 3 of E1/AS1 may also be used to assist in sizing downpipes for given flow rates.

Guideline - November 2006

Download November 2006 update.

House Insulation Guide (3rd edition)

Download 2008 supplement.
Page 23, Table 6 - WERS Ratings and R-Values of Glazing and Framing - In the left hand column under "Aluminium frame", the fifth entry down, "Single clear Double bronze tint/clear", should just read "Double bronze tint/clear".

Landscape Construction

A correct version of Figure 23 on page 55 can be downloaded here. This amendment applies only to copies with the BRANZ logo on the front cover of the publication.

Sprinklers for Houses

Download August 2006 supplement.

Weathertight Solutions Vol 2: Stucco

All head flashings detailed should incorporate stop ends, because stucco is installed over a cavity. The stop ends have been omitted in drawings 2.1.1.1, 2.1.2.1, 2.1.4.1 and 2.1.5.1.

Weathertight solutions details

The DWG/CAD file for WSD 2.1.14.2 Stucco DIRECT-FIXED VERTICAL SHIPLAP WEATHERBOARD JUNCTIONS External corner - vertical shiplap weatherboard - limited risk score is incorrect in existing versions of the stucco collection CD and was incorrect as a download from this website before 18 January 2010. Download the correct version of 2.1.14.2.dwg.