We poured the last section of our level 4 slab at Junction House yesterday. As I was leaving the site, I tweeted this photo out from Watkinson Avenue. What you are seeing is the northwest corner of the building where we have seven two-storey towns that front onto our rear laneway. In response to this tweet, Andrew Williamson asked a most excellent question: "timber next?"
My response was that we would love to do a mass timber building. We have certainly looked at it in the past, and we will continue to look for opportunities to use more sustainable building materials wherever possible. But there are challenges to overcome and a project like Junction House would have been far more difficult to do in mass timber. I'm not an expert when it comes to wood construction, but I will offer up three items that have come up for us in the past.
The first is trade familiarity. We are in a highly inflationary hard cost environment right now. Everyone is hyper focused on costs and the market is competitive. So switching to a construction method that is less common comes with some additional risks. But this will almost certainly change over time as the market evolves and more people adopt mass timber.
We poured the last section of our level 4 slab at Junction House yesterday. As I was leaving the site, I tweeted this photo out from Watkinson Avenue. What you are seeing is the northwest corner of the building where we have seven two-storey towns that front onto our rear laneway. In response to this tweet, Andrew Williamson asked a most excellent question: "timber next?"
My response was that we would love to do a mass timber building. We have certainly looked at it in the past, and we will continue to look for opportunities to use more sustainable building materials wherever possible. But there are challenges to overcome and a project like Junction House would have been far more difficult to do in mass timber. I'm not an expert when it comes to wood construction, but I will offer up three items that have come up for us in the past.
The first is trade familiarity. We are in a highly inflationary hard cost environment right now. Everyone is hyper focused on costs and the market is competitive. So switching to a construction method that is less common comes with some additional risks. But this will almost certainly change over time as the market evolves and more people adopt mass timber.
The second is water. The Junction area, or at least parts of it, have a relatively high water table. That is certainly the case with our site. One of the things you need to do during construction is dewater, or draw down the water level within your site so that you can actually build. In our case, we built a watertight below-grade parking structure, though that isn't always the case.
Dewatering comes at a cost and so generally you want to stop dewatering as soon as it is feasible to do so. But you need to make sure that you have enough weight to counteract the buoyancy forces associated with groundwater returning to the site. Generally this means you need to wait until you've finished constructing a certain level in the building so that there's enough mass. The engineers will say things, "we can shut off the dewatering once we complete our level 4 slab."
The thing to consider with all of this is that concrete is heavier than wood, which means that you may need to run your dewatering program for longer (increasing your costs). Or, if your building isn't all that big, maybe you'll never have enough weight to offset the below-grade water forces and so you have to look at other methods for keeping your building from floating away. Again, this will increase your costs.
The last thing I'll mention is that mass timber buildings generally have higher floor-to-floor heights compared to cast-in-place concrete. What this means is that a 9 storey building in timber is going to be taller, in meters, compared to a 9 storey building in concrete -- even if the clear heights within the suites are the same. This is a massive deal when you're operating in an environment that is highly sensitive to building height.
In the case of Junction House, we were negotiating our final height in centimeter increments -- literally arguing whether it could be 50cm to 1.3m taller than some perceived maximum height. This is, in my mind, absurd, but it became a hill that people were willing to die on. The result is that our laneway towns (pictured above) went from having an entrance that was a few steps up off the lane to having an entrance that is now a few steps down off the lane. That is how we ultimately solved our centimeter problem.
This wounded me to my core because, at the end of the day, what are people going to remark: The additional meter at the top of the building or the relationship that these towns will now have to the street? It will, of course, be the latter. So please know that our hearts were in the right place. But what this also means is that had we been trying to build in wood, we likely would have lost a floor during this negotiation and that would have killed the entire project.
The second is water. The Junction area, or at least parts of it, have a relatively high water table. That is certainly the case with our site. One of the things you need to do during construction is dewater, or draw down the water level within your site so that you can actually build. In our case, we built a watertight below-grade parking structure, though that isn't always the case.
Dewatering comes at a cost and so generally you want to stop dewatering as soon as it is feasible to do so. But you need to make sure that you have enough weight to counteract the buoyancy forces associated with groundwater returning to the site. Generally this means you need to wait until you've finished constructing a certain level in the building so that there's enough mass. The engineers will say things, "we can shut off the dewatering once we complete our level 4 slab."
The thing to consider with all of this is that concrete is heavier than wood, which means that you may need to run your dewatering program for longer (increasing your costs). Or, if your building isn't all that big, maybe you'll never have enough weight to offset the below-grade water forces and so you have to look at other methods for keeping your building from floating away. Again, this will increase your costs.
The last thing I'll mention is that mass timber buildings generally have higher floor-to-floor heights compared to cast-in-place concrete. What this means is that a 9 storey building in timber is going to be taller, in meters, compared to a 9 storey building in concrete -- even if the clear heights within the suites are the same. This is a massive deal when you're operating in an environment that is highly sensitive to building height.
In the case of Junction House, we were negotiating our final height in centimeter increments -- literally arguing whether it could be 50cm to 1.3m taller than some perceived maximum height. This is, in my mind, absurd, but it became a hill that people were willing to die on. The result is that our laneway towns (pictured above) went from having an entrance that was a few steps up off the lane to having an entrance that is now a few steps down off the lane. That is how we ultimately solved our centimeter problem.
This wounded me to my core because, at the end of the day, what are people going to remark: The additional meter at the top of the building or the relationship that these towns will now have to the street? It will, of course, be the latter. So please know that our hearts were in the right place. But what this also means is that had we been trying to build in wood, we likely would have lost a floor during this negotiation and that would have killed the entire project.
This is a photo of Junction House that I took this morning after our weekly construction meeting. The team is currently preparing for the first concrete pour of level 4 (each floor has been split up into three pours). We're now flying our forms, which means that we're able to move a lot faster. This is the exciting part of a new build mid-rise like Junction House. The underground garage part is like watching paint dry.
We're scheduled to be topped out by this summer, so expect some gratuitous view photos on the socials.
It has been cold and snowy in Toronto lately, which is great if you're looking to shred pow on a snowboard, but suboptimal if you're trying to construct buildings. It pains me deep inside my bone marrow when we lose productive days to weather. But what can you do?
I was, however, thrilled to see this first glimpse (pictured above) of the lobby / co-working space at Junction House this morning. The slightly elevated section (which is the point of view of the above rendering) is the co-working area.
The reason it's elevated is that we needed the clearance below for our parking ramp. We thought about trying to make it retail, but a place for residents to hang out and work seemed like a pretty good idea.
A lot of us on the team are big fans of a great hotel lobby bar, but that's kind of challenging to do in a residential condominium. This is maybe the next best thing. It's been very popular with purchasers so far, but I'm looking forward to seeing how it performs in real life.
This is a photo of Junction House that I took this morning after our weekly construction meeting. The team is currently preparing for the first concrete pour of level 4 (each floor has been split up into three pours). We're now flying our forms, which means that we're able to move a lot faster. This is the exciting part of a new build mid-rise like Junction House. The underground garage part is like watching paint dry.
We're scheduled to be topped out by this summer, so expect some gratuitous view photos on the socials.
It has been cold and snowy in Toronto lately, which is great if you're looking to shred pow on a snowboard, but suboptimal if you're trying to construct buildings. It pains me deep inside my bone marrow when we lose productive days to weather. But what can you do?
I was, however, thrilled to see this first glimpse (pictured above) of the lobby / co-working space at Junction House this morning. The slightly elevated section (which is the point of view of the above rendering) is the co-working area.
The reason it's elevated is that we needed the clearance below for our parking ramp. We thought about trying to make it retail, but a place for residents to hang out and work seemed like a pretty good idea.
A lot of us on the team are big fans of a great hotel lobby bar, but that's kind of challenging to do in a residential condominium. This is maybe the next best thing. It's been very popular with purchasers so far, but I'm looking forward to seeing how it performs in real life.
