Quote:
Originally Posted by rebl
Sorry if I missed this discussion already, but does anybody know what they are doing on the roof exactly? It looks as though the roof is being lowered by a couple feet, section by section. Is this a repair or more of a renovation? I recall there is supposed to be a rooftop space in the redevelopment.
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The existing structural roof is a flat cast-in-place concrete slab, that is covered over with wood framing that provides the sloped surface for drainage. That's somewhat typical in older buildings as it provides a more accessible substrate for the roof membrane as repairs and replacements are required over the years.
It looks like they are removing a fair bit (maybe all?) of the existing wood framed roof structure.
For modern builds, you can put a roof membrane on top of sloped insulation that sits directly on the flat roof structure.