I saw a home show where they suggested using plastic kits that are
applied by using double sided tape and a very thin sheet of plastic.
I just tried them in my den. I stuck them to the double sided tape but
I have not heated them with a blow dryer or trimed the edges yet.
Anyone use these?
Is shrinking them with a blow dryer necessary? I would think that
shrinking them would put more tension on the double sided tape.
Not nessesary....I believe this is done, shrinking, so the plastic
doesnt move back and forth and making a racket with pressure
changes..........such as a windy day/storm. Also will make visability
through it a little better. Up to you if you can put up with
that.....can always blow dry it later on :-)
I have in the past--they work well. At least the 3m products do, the
no name brands tend to have el shitto tape.
Nah, not necessary. It's for aethetics both inside and out. If
they're covered by drapes and not facing the road, you can leave them
as is. If you prepped the surface as directed before putting down
the tape, and you're using the 3m window kits, my experience is that
the extra tension is no problem at all. On budget kits with lousy
tape though, your concerns are well founded.
I've used 3M window kits for many years now and they work great.
Don't bother wasting your time and money on any other brand because,
frankly, nothing comes even remotely close to 3M quality. Trust me.
I have six, fixed windows equipped with wooden storms. Three years
ago, I installed 3M window kits on both the inside and outside of
these units (the outer film is protected from the elements by the
storm). Heat loss through these windows has been effectively cut in
I attached these films directly to the window frame itself (not the
outer trim) which means they virtually disappear from view. This is
their third season and they're still in excellent shape. Once a year
I reshrink the inside film with a hair dryer to remove any wrinkles
and that's about it.
I estimate these kits save me about $200.00 a year on my heating bill.
I am guessing had you put them around the frame too the R factor would
have been higher. Of course they would not be as invisible as you
Can anyone confirm this? The TV show said the pocket of air provides
An air space is required. However, these windows are true divided
lights, so the plastic film rests on top of the mullion bars. These
mullion bars provide a one inch air space between the window glass and
the plastic film on either side.
Based on your thread, I will install them on my windows...but I am not
following you. Did you put them on the interior and exterior of the
windows? I have storm windows outside...Where would/how would I do
anything to the exterior? Also, I saw your pic and it looked really
nice...but where did you start the coverage? It didn't look like
anything was attached to the frame.
Also, what did you mean by this? What are true divided lights and what
are mullion bars?
Could you please post some more pics if not too much trouble? Thanks
for your help on this and have a nice NewYears...
They go in the interior of the windows. Someone who had my house
before me used them, I can see the glue residue. I can't imageine that
they actually did anything, since there was no insulation in the attic
at the time.
Best wishes to you for the New Year as well.
As mentioned, I installed these kits on both the inside and outside of
each window. The outside kit is protected by a wooden storm; without
a storm window to protect it, the exterior film would be damaged by
high winds and ice and snow.
The supporting tape was applied along the outside edge of the window
frame as shown in the picture below. It's difficult to see this, but
the sticky tape is aligned with the inside edge of the window jam (the
flat surface perpendicular to the window) .
These windows are made up of several smaller pieces of glass held
together in a wooden frame; windows constructed in this manner are
often called "true divided lights" because the glass is "divided" or
separated by these wooden cross members or mullions. By comparison,
most windows made today use a single piece of [thermo pane] glass and
attach "fake" mullion bars to reproduce this look, e.g., snap on
grills. So, basically, with true divided light windows, we have
several individual pieces of glass held together by a structural
framework (i.e., the mullion bars), versus a single piece of glass
with an added (and purely decorative) wood or plastic trim.
In my case, the glass is set back about an inch or so inside the
mullion bar and this provides the insulating air space on both sides
of the glass. Due to the added depth of these cross members, the film
is suspended on top of mullion bars and not the glass itself. In any
event, so long as the outer edge of the window frame has some depth to
it and sufficient width to accommodate the sticky tape, these window
kits will work well.
Hope this makes sense as I explained it.
Thanks for the reply Paul,
I thought that the tape and the film would all stay completely
parrallel to the window. I didnt think you could put the tape
perpendicular to the window, thus the film being perpendicular to the
window for about 1/4 inch and then changing directions where it is
parrallel to the glass to cover the window. The reason I was asking, I
have old raise up window sashes with a 2-3 inch ledge at the bottom. I
am planning on using the film from the molding to molding, to get
complete coverage of the window(Forfeiting window use). I wasnt sure
how to deal with the ledge accross the bottom though. Now I guess I can
just put the tape along the ledge. According to your pictures, that
heat gun dows a great job! I cant even make out the film.
Check these out:
I saw them on the net yesterday. I am considering them, but at 75
dollars a pop, I am not certain that I want to take the gamble. I am
wondering if the compression fit will be tight enough to completely
seal the window when you consider minute imperfections of the window
frame. What do you think of them?
You're most welcome. Just to clarify a key point, if I may. The tape
was applied to the face of the window frame -- parallel to the glass
-- butting up against the inside edge of the window jam. However,
bear in mind these are *fixed* windows as opposed to operable. I
don't believe you can use the method I described with double hung
windows because there is no continous vertical surface upon which to
apply the sticky tape. I think this is why I left you scratching your
head, so my apologies for the confusion.
With double hung windows, your only option is to apply the film to the
outside edge of the trim and around the bottom ledge, as described on
I've heard of inside storm windows but I'm afraid I don't know anyone
who uses them. In terms of general appearance, they would seem to be
the hands down winner and if you have old and leaky windows, they
would presumably make a room a whole lot more comfortable. Another
plus is the convenience factor -- I take it they are fairly easy to
put in and take out with each passing season and over the long haul
they should save you money compared to the alternative of buying new
window kits each year.
I appreciate it's no small investment, so you might purchase a set for
the window (or windows) that are in most need of help; ideally, a
small room where it would be fairly easy to determine if they are
working as well as had been expected. This way, you will be in a
position to judge the quality of their construction and the
responsiveness of the company without risking a large capital outlay.
If you are pleased with their performance and the company's service,
you could then begin to target other areas of your home.
I've used them. After using the hair dryer, it tightened the film up
such that it looked 'cleaner'/'nicer'. I can't speculate whether or
not it's necessary, but I think following the manufacturers
instructions is OK.
tom @ www.BlankHelp.com
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