Good Repair Guide: Subfloor timber

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. 

This publication helps designers, specifiers and builders ensure that new and existing houses are warm and effectively ventilated, providing owner comfort, convenience, health and safety while minimising running costs. It acknowledges the importance of good passive design - taking advantage of free sources of energy such as sun and wind to provide heating, cooling and ventilation.

This publication covers:

• heating and cooling design considerations and methods
• thermal design
• ventilation design considerations and methods.

Overlay flooring is a flooring system that is laid over timber tongue and groove (T&G) boards, particleboard, plywood or concrete. It includes solid timber boards, parquet flooring, timber composite flooring systems and bamboo flooring

This Good Repair Guide describes the repair options for existing overlay flooring. It describes how to: 

• repair minor damage
• replace a section of floor
• replace an entire floor
• prepare an overlay floor for a new protective finish.  

Floor coverings such as cork tiles, vinyl tiles or sheet vinyl are not covered by this guide. 

Until the 1970s, the main material used for window frames and sashes in New Zealand houses was timber. A large proportion of houses still have timber windows, and these can last for a very long time if well maintained and repaired when necessary.

This Good Repair Guide covers the repair of timber windows using materials and styles to match the existing. It looks at common problems, how to repair and replace windows, rules and regulations and health and safety.

This module focuses on the concepts and features critical to the design of window and door head flashings in buildings.

Topics covered in this self-paced module: 

• What are head flashings?
• Why are they important?
• How do they work?
• Library of useful materials 

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.

General wear and tear in a house often results in damage to interior wall linings. Damage can range from repairable (a picture hook pulled out or a door handle through the wall) to the catastrophic (a major leak or structural failure). 

This Good Repair Guide outlines some options for repairing existing wall linings and guidelines for when to replace a sheet or larger area of lining.

Prefinished linings (such as melamine-faced boards) are not included in this guide.