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 //