FEATURES
Continued from page 36
WISA ® birch plywood
Technically superior birch plywood
WISA-Birch Special Smooth surface for high quality painting. An optimal base for various overlaying methods in demanding construction and furniture applications.
WISA-Birch Premium Aesthetically pleasing plywood. UPM’ s finest quality face grade – perfect for visually demanding applications such as furniture and interior linings.
TIPSASA
Bulk insulation installed in timber walls.
" Apart from timber ' s superior insulation properties, such buildings can be well insulated as ceilings and external walls can be filled with insulation."
PEFC / 02-31-112
Promoting Sustainable Forest Management
www. pefc. org
WISA-Birch Multi-purpose high quality panel for various applications where excellent strength and stability are essential. An optimal base for structures that require robust construction.
www. wisaplywood. com
“ By acting as a thermal barrier, the building envelope plays an important role in regulating interior temperatures and helps determine the amount of energy required to maintain thermal comfort. Minimising heat transfer through the building envelope is crucial for reducing the need for space heating and cooling. In cold climates, the building envelope can reduce the amount of energy required for heating and in hot climates, the building envelope can reduce the amount of energy required for cooling,” says Schnetler.
Schnetler says it is advisable to install insulation in a suspended floor that is part of a building’ s envelope with an R-value of at least 1m ² K / W. Various types of products are available to suit the relevant application, Schnetler adds. The R-value is the measure of an insulation product’ s ability to restrict heat transfer. It is therefore indicative of an insulation product’ s thermal insulation performance.
Agent in Southern Africa:
www. npp. co. za Tel: + 27( 0) 21 700 2800
ADDRESSING INSULATION CHALLENGES
“ When insulating in timber frame construction, it is critical that the vertical insulation is of a rigid type to avoid sagging over time and therefore creating thermal bridging. The insulating material should also be a type that will not add additional fuel in the case of a fire,” says Trevor Henwick, regional sales manager: Eastern and Western Cape for Isover, a division of Saint-Gobain Construction Products South Africa.
Henwick continues,“ The Knysna fires should be considered when specifying thermal insulation.
See more on page 40
38 AUGUST / SEPTEMBER 2018 //