Masterspec
13 Sep 2021
THE HISTORY OF MASTERSPEC
Construction Information Limited (CIL) is a New Zealand owned and operated industry organisation incorporated in 1995 to manage and create information...
09 Sep 2021
THE BEST WAY TO COLLABORATE THROUGH MASTERSPEC
There’s nothing quite like the peace of mind of a professional, well-thought-out specification. Build quality specifications in Masterspec with...
31 Aug 2021
SPECIFYING SCNZ STRUCTURAL STEEL ON MASTERSPEC
Structural Steel New Zealand (SCNZ) has had a Structural Steel specification document based on AS/NZS 5131 since 2018. However, a new industry...
04 Aug 2021
PURLINS & GIRTS MOVING DAY
Masterspec existing branded Purlin and Girt sections are on the move, but not far. For a long time they have not quite been in the right CBI number,...
04 Aug 2021
CONCRETE TERMINOLOGY & TYPES
With three new branded sections relating to concrete, we have provided a brief overview article describing common concrete terminology and related...
03 Aug 2021
MONTHLY PRODUCT PARTNER EVENTS AT MASTERSPEC
Partner Manager Trish Croot is excited to introduce a brand new, monthly networking opportunity to Masterspec Partners. Join us at the Masterspec head...
03 Aug 2021
mDOCS, BE A PART OF GROWING TECHNICAL RESOURCES FOR THE INDUSTRY
mDocs technical library is a free resource within your subscription that will help ensure the entire specifying community has the right documents, at...
03 Aug 2021
WHY INCLUDE THE WARRANTY AGREEMENT FORM?
The Masterspec section 1237WA WARRANTY AGREEMENT is a blank, standard form of a warranty agreement, available in all Masterspec systems except Minor...
02 Aug 2021
MASTERSPEC'S HELPDESK FOR SPECIFIERS AND PARTNERS
Are you a designer that’s creating a specification and have a quick question? Or maybe you are a Masterspec Partner and need some direction on where...
20 Jul 2021
NEW PRODUCT PARTNER SECTIONS FOR JULY 2021
In case you missed our Masterspec NOTES at the beginning of the month, here is a list with reference links for the new work sections published for...
29 Jun 2021
NEW GENERIC WORK SECTION - 5517 BENCHTOPS
Masterspec are happy to announce a new generic section, 5517 Benchtops, that encompasses the specification of a broad range of benchtops across...
29 Jun 2021
2391 RE-LEVELLING FOUNDATIONS & FLOORS - A NEW GENERIC SECTION
This new Masterspec section 2391 RE-LEVELLING FOUNDATIONS & FLOORS relates to the repair and re-levelling of existing foundations and floors of small...
03 Jun 2021
HOW MUCH DOES MASTERSPEC COST?
With seven different libraries to choose from, Masterspec has all you need to create a quality, New Zealand construction specification for any design....
11 May 2021
NEW PRODUCT PARTNER SECTIONS FOR MAY 2021
In case you missed our Masterspec NOTES at the beginning of the month, here is a list with reference links for the new Product Partner work sections...
29 Apr 2021
BUILDING CODE UPDATES 2020-2021 - INTERNAL MOISTURE
On the 4th November 2021, the changes to NZBC E3/AS1 and the addition of E3/AS2 become the Acceptable Solutions for Internal Moisture. But it is...
29 Apr 2021
LIST OF WORK SECTIONS WITH NZBC CHANGES - MAY 2021
With the updating of the Masterspec libraries, we thought it may be useful to provide the complete list of work sections that have been updated so you...
28 Apr 2021
BUILDING CODE UPDATES 2020-2021 - TIME TO ABSORB & APPLY
On the 3rd of November 2021, the 12 month transition period ends for the NZBC changes introduced in November 2020. This means the previous editions of...
28 Apr 2021
PROTECTION FROM FIRE UPDATES
This article delivers a summary of a number of the more significant updates to C/VM2 and C/AS2. Minor amendments to C/VM1 and C/AS1 were also made,...
28 Apr 2021
STORMWATER DRAINAGE DESIGN – NEW OPPORTUNITIES IN NZBC E1 NOVEMBER 2020 UPDATE
November 2020 brought a number of updates to the Building Code, including a new Acceptable Solution in the form of E1/AS2 in its newest version,...
25 Mar 2021
UPDATES TO MASTERSPEC INTUMESCENT PAINT – STEELWORK SECTIONS
Late last year the FPANZ (Fire Protection Association of New Zealand) released the Code of Practice COP-03 Version 1.0, Specification of Application...

FIRE BARRIERS - FOR VENTILATED CAVITY CONSTRUCTION

02 Mar 2021

Maintaining an unobstructed ventilated drained cavity behind cladding on multi-unit/multi-storey residential or commercial buildings can be made complicated by inter-storey fire spread requirements (NZBC C/AS2, Cavity Barriers 5.8.5).

Possible solutions are intumescent Ventilated Cavity Fire Barriers, which have recently become more readily available in the marketplace. These exterior Ventilated Cavity Fire Barrier strips comprise a weatherproofed intumescent strip that is usually fixed at the inter-floor level, to the back of the cavity, between the cavity battens, and behind the cladding.

These strips will maintain the open ventilated cavity space until there is a fire, at which point the intumescent material will expand in the heat and seal off the cavity. This restricts the fire and heat spread up the cavity behind the cladding.

Refer to Manufacturer for;
  • FRR (usually between 60 to 120min.)
  • testing to AS 1530.4 and AS 4072.1
Masterspec has updated the generic fire stopping section to include a fire stopping option for cavity construction.  Refer to 7382 Fire Stopping Systems, (available in Masterspec STANDARD, STRUCTURAL & CIVIL, SERVICES and INTERIORS).
 

Feedback
Feedback