12358e2f2e9a
tech



Hello Jim - 

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JH> As "Lifetime Shingles" even for new construction back in
JH> the late 40's - sort of an octagon exposed pattern to the
JH> sheets. I think also used back then and maybe to early 50's
JH> as replacement roofing where composition shingles or worse
JH> had been. 

I think I remember some 'shingled' homes, yes. 

JB>> over here it's legal to retain it in existing construction
JB>> but no longer available new. the replacemnrt product is
JB>> called fiber cement and has glass fibres (AFAIK) instead
JB>> of asbestos. 

JH> First part - about the same here - - plenty houses that old
JH> still have AC siding and AC "lifetime shingle" roofs. Those
JH> products are not used now for new construction. There may
JH> be replacement products here which use glass fibers, just
JH> for repairs of existing applications. I dunno for sure. 

I'm not very well informed as to building materials or their
uses. 

As a construction laborer I was a human hi-lo moving things
from one place to another. It was not required that I know what
they were or how they were made.  This was all commercial work
with somewhat different materials than housing would be.

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