Roof Space on PT40

[Pete Masterson]

All 'birds have radius-curved roofs made of steel with a second layer
of aluminum plating -- older ones have diamond plate and newer ones
have (at least mine has) aluminum with a corrugated extruded shape.
On my coach, the plating only is on the outer thirds of the roof with
the steel in the center exposed. The "wide body" (post-'89) coaches
probably have less curve than the older "all American" body models.

It should not be too difficult to fabricate a spacer blocks to level
your mounting system if you had to place it off center. 'Bird roofs
are quite strong, so the primary issue for a leveling block will
simply be to allow ample drainage for rain water.

Pete Masterson
aeonix1@...
'95 Blue Bird Wanderlodge WBDA 42'
El Sobrante, CA




On Dec 10, 2006, at 1:24 PM, Don Bradner wrote:

> I didn't think I said centerline, but I may have implied it.
> Ideally, for optimal deployment accuracy, the dish should be as
> level as possible. That means centerline on any curved rood is
> best, but off-center can be used if necessary. In my current case,
> and not particularly obvious in the photo, the roof is a two-piece
> peaked aluminum, about 2 degree pitch. Makes centerline mounting
> impractical without a custom spacer, since the mounting plate can't
> be bent down over the peak.



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