Double glazing reduces heat loss through the window by around 50% (depending on window type). There is a misconception that homeowners should replace windows with double glazed units, however this is not practical or cost effective for many householders. Retrofitting double glazing, however, can be a good affordable option in many cases.
ClearComfort directly or can be purchased on-line (e.g. Amazon.com) as 3M window film interior or Duck window film interior. However if desired external films can be ordered on-line, broadening the application.
Perspex can be sourced and cut to size by plastic manufacturers. The thickness required will depend on the size of window. Small to medium windows 3 mm perspex will be adequate. larger wnidows may require 5 mm perspex.
MagicSeal and Magnetite are proprietory brands of retrofitted double glazing. Magnetic strips are applied to the window frame and the acrylic sheet cut to size. The double glazing then attached to the magnetic strip, allowing it to easily removed for cleaning or when not required. These systems are effective for heat retention and sound control. While reaonsbly expensive the finish is professionla and less hassle than replacing windows.
ClearComfort is available directly from the wholesaler Clear Comfort
Other thin film brands are available if you are prepare to purchase from international online stores such as Amazon.com.
Various sizes and combinations of both internal and external shrink film window coverings are made by 3M, Duck, FrostKing.
Perspex can be cut to size from plastic manufacturers e.g.
24 Pearl St, Derwent Park
Ph 6272 3105
Associated Plastics Tasmania
1 Birdwood Ave, Moonah
Ph 6272 0744
320 Elizabeth St, North Hobart 7000
Tasmanian Plastics and Fibreglass
452 Rifle range road, Sandford
Ph 6248 9990
Professional retrofitted acrylic double glazing.
36 Bass Hwy
Cooee, TAS 7320
Phone: (03) 6432 1058
125 Albert Road
Moonah TAS 7009