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LIMIT STATE DESIGN

NATSPEC

Version:  (Current)
During recent decades, the emphasis in structural design has been moving from permissible stress design to limit state design since the latter approach makes possible rigorously designed, yet economical, structures by considering relevant modes of failure directly.
Atmospheric Corrosivity Categories TECHnote cover 2021

NATSPEC

Version:  2021.  (Current)
Atmospheric corrosivity categories are a standardised rating of the corrosivity of the atmosphere in relation to the corrosion rate of certain metals.
Corrosion Protection of Building Services TECHnote cover 2021

NATSPEC

Version:  2021.  (Current)
This TECHnote aims to provide specifiers with guidance in deciding the required protection to prevent excessive corrosion.
Universal design: acoustics TECHnote cover 2021

NATSPEC

Version:  2021.  (Current)
Acoustic design can have a significant impact on health and wellbeing, communication and productivity; good acoustic design allows for speech intelligibility and helps promote human interaction and knowledge transfer.
Archival records are administrative or project records which are no longer in current use but are retained to satisfy legal requirements, for promotional or reuse value, or for their potential historical significance. This TECHnote addresses requirements for successful long-term storage of, and access to, digital archival records.

NATSPEC

Version:  (Current)
Archival records are administrative or project records which are no longer in current use but are retained to satisfy legal requirements, for promotional or reuse value, or for their potential historical significance.
Slip resistance performance

NATSPEC

Version:  (Current)
Standards and relevance for slip resistance performance.
Moisture Content In Timber Floors TECHnote cover 2021

NATSPEC

Version:  2021.  (Current)
The moisture content of timber varies with changes in humidity and temperature in the surrounding air. The effect is for timber to swell with the uptake of atmospheric moisture, or to shrink with moisture loss. Natural movement that occurs must be accommodated by the installation and finishing processes.
FIRE HAZARD PROPERTIES OF INSULATION AND PLIABLE MEMBRANES

NATSPEC

Version:  (Current)
This TECHnote addresses fire hazard properties of insulation and sarking materials as dealt with in both the National Construction Code (NCC) and in NATSPEC.
AIR, MOISTURE AND CONDENSATION

NATSPEC

Version:  (Current)
Condensation can damage finishes and materials (e.g. by causing timber to rot), and be a health hazard by promoting mould growth. Moisture entry into buildings also increases air conditioning energy consumption. Higher R-Values and tighter building sealing increase condensation risk.
PREVENTING CONDENSATION ON DUCTS AND AIR HANDLING PLANT

NATSPEC

Version:  (Current)
Condensation on mechanical ducts and plant can lead to corrosion, damage to building materials and microbial growth. This TECHnote deals with the use of insulation to prevent condensation on ducts and air handling plant.