Talk:Fort York Armoury

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Military history: Fortifications / Canadian / North America

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York Armoury Toronto - Lamella roof is timber (wood) NOT concrete

In my opinion, verified as much as possible, others please help - (I am a timber engineer of 40+ years experience), it is highly unlikely that this roof is reinforced concrete. For a practical reason - how would you fix the roof boards? Also from technical knowledge of the building system, which I will explain: -

This misapprehension may come from one particular Canadian historic buildings web-site. Here in UK too such listings by e.g. English Heritage, can sometimes be wrong.

I've had a browse around on the web and all other sites concerning York Armoury roof list it as "wood," which is what I would expect for a timber lamella roof (= Zollinger Patent of 1904 in Germany).

Another good example in North America dating from 1936 and listed as an historic building still standing is Lee Williams (formerly Kingman) High School Gymnasium, Mohave County, Arizona. You can find this on Wiki and go from there.

These timber lamellas are worthwhile preserving, since it was a good system, building long spans from short lengths of timber. And similar timber and glulam latticed roofs are still being built. Currently, for example one is going up for WWF Headquarters in Woking, Surrey, England.

Be sawing ya! Dendrotek 11:27, 31 October 2012 (UTC) — Preceding unsigned comment added by Dendrotek (talk • contribs)