The film is very thin and
easily damaged by hard objects. When unpacking do not use a knife
to slit the package open because the film is likely to be cut.
It is VERY IMPORTANT to
store the film in a location where it will not be exposed to direct
sunlight or radiators because the rise in temperature can be sufficient
to cause some premature shrinkage.
Window Insulation Film
Choice of Double Sided
Materials / Tools Needed for installation
1) A cloth and a roll of paper
kitchen towels ( for wiping dry and rubbing down)
1) If you are doing several windows its a good idea to do the first one as a test and leave it for a day or two to check that the film does not detach.
2) If possible choose a day when the weather ouside is not too cold because this will reduce the rate of condensation. After wiping off the frame using the cloth the window and frame should be warmed using a small electric fan heater for about 30 minutes at a safe distance (about 6 feet). If you are using the fan heater with an extension cable make sure the drum is fully unwound to avoid overheating. It is much more difficult to remove the moisture from metal framed windows because the cold metal attracts fresh moisture very quickly. Metal frames must be smooth and any rust blisters need to be sanded off.
3) Grease should be removed by wiping using a kitchen towel and some meths or white spirit.
4) Continue wiping using the kitchen towels. You can tell when the moisture has been removed because the paper towel remains stiff instead of going limp.
Tape Adhesion Testing ( very important )
The film is more difficult
to install in winter because moisture condenses on the frame and destroys
the adhesion of the tape which causes the film to detach.
Window Insulation Film -
Lay a line of ordinary sticky
tape along the bottom edge of the window, rub down and then pull it off.
This will remove any residual dirt and loose paintwork and prove whether
the frame is sufficiently dry to continue. The amount of pull resistance
should be as good as the trial on the door frame which you did earlier.
This might seem wasteful of tape but single sided tape only costs about
50p per roll and it does prove that the frame is clean and dry.
2) After testing the adhesion
run the hair drier slowly along each frame edge to warm it up then quickly
apply the double sided tape to the same position. (This reduces the time
available for fresh moisture to condense)
3) After applying the tape
rub it down using as much pressure as possible.
4) Remove the backing from the top piece and about six inches from each side piece at the top end.
5) Cut the window insulation
film allowing a couple of inches margin all the way round.
6) Start to separate the two
layers of the film.
7) Separate the first 12 inches
along the entire width of the window.
8) Present the window insulation
film to the top of the frame so that the two inside surfaces face the
window (The outer surfaces of the film will be dusty so these need to
face the inside of the room so the dust can be wiped off)
9) Be careful not to let the
film touch the adhesive tape until you are ready.
10) Do not pull the film tight. Just concentrate on avoiding creases crossing the line of tape.
11) Peel off another six inches from each side and gradually work side to side down the window.
12) Peel off the last few inches and the bottom tape while holding the film away from the tape with the other hand. Attach the bottom of the film.
13) Carefully rub down the
film onto the tape all the way round. Do not use a hard object.
15) A hair dryer is used to remove wrinkles. Start in the corners and work towards the centre. Some people use the electric fan heater to speed things up but obviously this cannot be recommended because it could be dangerous.
Any questions ?
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