[alberg30] Re: dog house windows

[JANET LEMBO]

From: JANET LEMBO <jlsasha at erols.com>

Robert E Johns wrote:
> 
> From: Robert E Johns <bobjns at nais.com>
> 
> Lee, Jacques, Tom, Stephen:
> 
> I replaced our doghouse windows with 1/4 inch lexan, probably late 70s or
> early 80s. No problems with fogging. I had heard that UV affected the
> strength of lexan, but it is so strong to start off with that I don't think
> that it is really a problem. By the way, the original plastic I believe was
> plexiglas - only 3/16ths inch thick.
> 
> When I was trying to decide what to use for the new windows, a dealer cut
> two blanks of lexan and plexiglas about 3 inches by 1 inch. He laid the
> plexiglas on a padded bench and said to tap it lightly with a hammer. I did
> and it shattered. Then he put the lexan down and said to hit it as hard as
> I could. Nothing happened to it. Later I was showing it to someone at work,
> I put it on a hard workbench and hit it with a marlinspike as hard as I
> could. It put a small dimple in the lexan, and I hurt my hand on the knife
> handle!
> 
> I think that the 1/4 inch lexan is probably stronger than the sides of the
> doghouse. As I remember, the sides fit the 3/16 plexiglas fairly well, so
> they must be about 3/16 inch thick. If you plan to exceed the strength of
> 1/4 inch lexan, then you might want to think about beefing up the doghouse
> sides also.
> 
> Just a thought.
> 
> Regards,
>         Bob
> 
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Robert, I will be replacing the windows this spring, I will be using
tinted lexan with uv inhibitors. The lexan is available in clear, bronz
and grey..  #449  Joel

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