Dan,
My 73 has two layers of plastic, one that is inset on the outside and
another larger one inside. I do like my clear fantastic fan, maybe I
will do your trick to the old vents.
Thanks
Daisy
Dan Weeks wrote:
>
> For five bucks in plexi and a few more in rivets, I turned my three roof
> vents into skylights, and love the results. Here's what I did:
>
> My center vent had a white translucent plexi piece riveted onto the top of
> the vent--I don't know whether this was original or a previous modification.
> It had been damaged and taped over with aluminum tape. I pulled off the tape
> and the old plastic, made a template of the plastic, took it to the local
> hardware store, and had them duplicate it three times in 3/16" clear plexi.
> They cut it out, ground the corners to radius and all for $5.30. Then pulled
> off the other two roof vents, used the one with the existing hole to scribe
> lines on the other two, sabre-sawed out the opening, filed the edges. Then
> punched and drilled 1/8" holes every 1.5" around the edge of the opening,
> ran a THIN bead of Vulkem 116 caulk around the edge, and riveted the plexi
> on over the caulk bead. Cracked one ever so slightly where the caulk was too
> thick when pulling one rivet tight, but otherwise no problems. Couldn't find
> closed-end rivets with the right grip range, so just dabbed the top of the
> rivets with a bit of vulkem. They're tight, really lighten up the interior,
> and cost a hell of a lot less than the $57/per vent Airstream quoted me for
> plastic translucent vent covers. Plus, it's cool to look up and see clouds
> and stars. Whole project took a couple hours. The plexi is exactly the same
> dimensions as the flat top part of the vent cover; the cutout follows the
> outline of the edge of that flat part, a half-inch in from the edge,
> allowing the plexi to overlap the aluminum half an inch. Since it follows
> the original contour and the rivets are neatly and evenly spaced, it looks
> like the cover came that way. While I had them apart, I buffed up the inside
> of the vent covers to a nice shine, and oiled the opener mechanism.
>
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>
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