Module: Timber treatment for use in buildings

This module focuses on the concepts and features critical to the design of timber roof framing.

Topics covered in this self-paced module:

• What types of framed roof construction are there?
• What factors affect roof framing construction?
• How does roof framing resist loads?
• Library of useful material
• Did I understand all of this? 

Gain 100% in the test at the end of the module, and you'll receive a record of your completion that can be submitted as part of your CPD activity log.

This module focuses on the concepts and features critical to the design of timber wall framing.

Topics covered in this self-paced module: 

• What do I need to know before I start?
• How do various loads impact wall framing?
• How do I resist load in a wall frame?
• Library of useful material
• Did I understand all of this? 

Gain 100% in the test at the end of the module, and you'll receive a record of your completion that can be submitted as part of your CPD activity log.

This is a guide for specifying and choosing timber for use in New Zealand buildings, which will be useful to all architects and designers, specifiers and builders working with timber.

As well as covering such key issues as timber treatment and moisture levels, the book features an extensive species data index, with separate sheets for each of 89 species of timber available on the New Zealand market. The data sheets cover key characteristics of each species such as timber strength, hardness and durability, borer susceptibility and typical uses.

Selecting timber briefly covers engineered wood products, plywoods and veneers, looking at their general characteristics, but does not cover specific performance or selection data for these. 

Roof gutters are an important component of the building envelope, designed to control the disposal of rainwater from the roof. The most important functions of gutters are to help protect against:

• excessive or concentrated wetting of external wall surfaces
• water getting inside the building roof space or wall framing
• increased wetness of soils around the building and subsequent increased moisture loads on basement waterproofing 
• undermining of areas around the building where there is controlled spillage onto the ground.

Leaking or overflowing gutters may cause problems with dampness in subfloor areas or basements or elevated moisture levels in cladding and within wall framing.

This Good Repair Guide covers the repair or replacement of fully accessible metal and plastic external gutters around the outside perimeter of the building that are fixed to a fascia board or rafter ends. It does not cover gutters that are concealed behind a proprietary metal fascia or internal or within-roof gutters. 

Building and renovation work can result in spills and splashes causing undesirable staining on nearby surfaces. The most common substances likely to cause staining if not handled or used correctly include:

• paints, varishes and stains (waterborne and solventborne)
• oil, grease and wax
• adhesives
• sealants (silicone and latex)
• concrete and cement-based mortar and grout
• asphalt and tar.

 This Good Repair Guide covers:

• the solvents and cleaners available for stain removal and the procedures for removing different types of construction-related stains without damaging the underlying material
• physical removal options such as abrading, rubbing, sanding, scraping, sandblasting, grinding, steam cleaning, brushing or scouring where appropriate
• dry materials that may be applied to a stain or spillage.