Well, actually it's only been done a bazillion times, which as you know
- is nowhere near a gazillion.
The first step is to tear off all the aluminum siding, so that you can
see what somebody else was so desperately trying to hide. You have to
be careful though, as it's sometimes very difficult to seperate what
was rotten before the siding went up vs. what the siding caused to rot.
Now, having accomplished this, your next step is to tear out the rotten
siding, which is located directly beneath the aluminum siding, which
you already removed in step 1.
Which takes us to step 3. Under the rotten original siding, which you
have removed (after you removed the aluminum siding, of course), you
will find the rotten structural members of your house. These must now
be removed. Removal is very easy, because dry rot has reduced them to
compacted dust, or termites have so kindly done the work for you in
You may notice that after removal of the structural members, the roof
is now positioned where the walls formerly stood. This is normal for
this type of installation, and you needn't worry about it.
Now that you have removed 2 layers of siding, and the structural
framing members of the house, you are ready to begin with installation
of your new windows! (Codes in your area may require replacement of the
structural members removed in step 3. Check with your local zoning
comittee for specifics).