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222 Jarvis Street LEED retrofit (former Sears office building, 9s, WZMH).
- Thread starter Observer Walt
- Start date
waterloowarrior
Senior Member
going to the CofA 10 Feb to get a variance on height
http://www.toronto.ca/planning/pdf/cofa_tey_agenda_10feb10.pdf
PURPOSE OF THE APPLICATION:
To alter the roof top of the existing office building by replacing the mechanical units; and by installing a
skylight, three cooling towers, a heat recovering unit, ducts, a photovoltaic array, and a green roof.
REQUESTED VARIANCE(S) TO THE ZONING BY-LAW:
Section 4(2)A, By-law 438-86
The maximum permitted height of a building is 30 m.
The existing building has height of 45.725 m, measured to the top of the existing mechanical penthouse roof.
The altered building will have a height of 47.25 m, measured to the top of the new skylight.
http://www.toronto.ca/planning/pdf/cofa_tey_agenda_10feb10.pdf
PURPOSE OF THE APPLICATION:
To alter the roof top of the existing office building by replacing the mechanical units; and by installing a
skylight, three cooling towers, a heat recovering unit, ducts, a photovoltaic array, and a green roof.
REQUESTED VARIANCE(S) TO THE ZONING BY-LAW:
Section 4(2)A, By-law 438-86
The maximum permitted height of a building is 30 m.
The existing building has height of 45.725 m, measured to the top of the existing mechanical penthouse roof.
The altered building will have a height of 47.25 m, measured to the top of the new skylight.
urbandreamer
recession proof
The irony being that green roofs aren't very green at all. Source: a green roof specialist.
Observer Walt
Senior Member
Do you have any elaboration on this rather cryptic comment?
urbandreamer
recession proof
^Go watch a green roof being assembled. Where do the parts come from?
a)lotsa plastic involved in the membrane--how friendly is that? (I'd prefer if it was made from some natural substance--hemp perhaps?)
b)china....ha!
a)lotsa plastic involved in the membrane--how friendly is that? (I'd prefer if it was made from some natural substance--hemp perhaps?)
b)china....ha!
Observer Walt
Senior Member
^ I'm not a contractor or architect, but I think any roof membrane includes some form of plastic. (Anyone who has actual knowledge otherwise, please correct me.)Do you know of hemp or other "natural" materials being manufactured into membranes which would have the necessary qualities?
It seems that they are doing what they can, within the constraints of the existing building, which is not ideal in a number of respects. I like the much more open foyer / entrance area, and the atrium to let some light in to the huge floor plate areas.
It seems that they are doing what they can, within the constraints of the existing building, which is not ideal in a number of respects. I like the much more open foyer / entrance area, and the atrium to let some light in to the huge floor plate areas.
torplanner
Active Member
The "word on the street" is that the parking lot to the south is being planned, and initial plans are looking like a 5 storey podium with 2 20+ storey towers above.
AlvinofDiaspar
Moderator
Thanks torplanner - I seriously hope Ryerson snaps up that parking lot.
AoD
AoD
torplanner
Active Member
Has there been talk that they might?
urbandreamer
recession proof
Sounds like a Tridel project--they love twin towers on a podium, on the east side of downtown.
AlvinofDiaspar
Moderator
torplanner:
Nope - but I wouldn't be surprised if it is on the radar, given the proximity to the University proper.
AoD
Nope - but I wouldn't be surprised if it is on the radar, given the proximity to the University proper.
AoD
Chuck
Senior Member
I'm a green roof specialist, and I respectfully disagree.
Apart from the obvious (green roofs reduce combined sewer overflows, decrease the heat island effect which reduces the cooling load on buildings city wide, and increase biodiversity...), green roofs also prolong the service life of the roofing materials (which are almost always petroleum based), which in turn reduces the raw materials used for roofing over a given decades long period of time. Regarding the green roof materials themself, it is industry standard is for the bulkier components of the green roof assembly, ie the water retention panels, to be made from recycled plastic. Without a doubt, the increase in raw materials used to construct the green roof is more than offset by the decrease in general roofing materials (membrane, insulation, etc) that is realized due to the longer service life.
In more southern climates where roofs tend to lack thermal insulation, a properly maintained green roof will greatly decrease the cooling load of the actual building, which reduces emissions caused by power generation. This is admittedly less of a factor in Canada because our roofs are well enough insulated that green roofs offer negligable improved insulation in the summer and the winter.
Roy G Biv
Senior Member
I have heard from a credible source that this project is in jeopardy.
AlvinofDiaspar
Moderator
That maybe, but it certainly doesn't look it from the outside - they've been gutting the interior for awhile now and you can see windows that are knocked out etc. Perhaps Ryerson can still get the building?
AoD
AoD
Roy G Biv
Senior Member
It seems as though the money is drying up, and the work may be halted soon.