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04 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...
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,...
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...
29 Jul 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...
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...
09 Mar 2021
NEW PRODUCT PARTNER SECTIONS FOR MARCH 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...
03 Mar 2021
STANDARDS ONLINE WEBSITE UPDATE
You may be experiencing some problems accessing Standards over the coming days as they are making significant updates to their website. We are aware...
02 Mar 2021
FIRE BARRIERS - FOR VENTILATED CAVITY CONSTRUCTION
Maintaining an unobstructed ventilated drained cavity behind cladding on multi-unit/multi-storey residential or commercial buildings can be made...
18 Feb 2021
ELECTRICAL RELATED FIRES - CAN THEY BE REDUCED?
About 20% of New Zealand building fires are related to electrical systems or devices. So is there anything that could help in new builds and...

2391 RE-LEVELLING FOUNDATIONS & FLOORS - A NEW GENERIC SECTION

29 Jun 2021

This new Masterspec section 2391 RE-LEVELLING FOUNDATIONS & FLOORS relates to the repair and re-levelling of existing foundations and floors of small buildings, similar in construction to NZS 3604.

The new section has been developed to replace the existing Christchurch earthquake repair sections which have become out of date, and except for relevelling, only used sparsely. The earthquake repair sections were first published in 2012 in response to the Christchurch earthquake. Based on MBIE response documents they were always considered temporary and as the MBIE response has been integrated into mainstream Codes and Standards they are less relevant. However, from our statistics we know there is still a country wide general demand for re-levelling old foundations and floors.

The following sections are deleted from the Masterspec system:
  • 2001CE  RE-LEVELLING EARTHQUAKE DAMAGED FOUNDATIONS & FLOORS
  • 2002CE  REPLACING EARTHQUAKE DAMAGED FOUNDATIONS & SLABS
  • 2003CE  REPAIRING EARTHQUAKE DAMAGED CONCRETE FLOOR SLABS
  • 2004CE  REPAIRING EARTHQUAKE DAMAGED CHIMNEYS
With the current overwhelming demand for house alterations, the first thing that should always be considered is "Do we need to re-level the floor?". The second question might be "Why is the floor not level?". Which leads to investigations of foundation and floor structure condition, which in turn leads to a scope of repair work. The new section 2391 RE-LEVELLING FOUNDATIONS & FLOORS provides the basis for specifying most of this work.

The foundation types being repaired and re-levelled are split into 3 groups;
  • Type A:  Timber pile foundations
  • Type B:  Piles with a concrete perimeter foundation wall
  • Type C:  Concrete slab on grade
With the exception of Type A, this section offers a choice of repair for each group, with repair methods ranging from the use of simple portable jacks to the injection of engineered resin. In each group the perimeter foundations typically carry timber framed walls with lightweight cladding. Other types of foundation outside of the 3 groups and heavyweight cladding would need engineering or specialist advice. Where possible the repairs are to be carried out to NZS 3604, however where this is not possible repairs should at minimum bring the foundation up to the strength and capacity it was prior to damage.

2391 RE-LEVELLING FOUNDATIONS & FLOORS will be available in the Masterspec systems: Standard, Basic, Interiors, Structural & Civil.
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