Frances Bula header image 2

The Vancouver condo and how it changed the city

December 12th, 2011 · 59 Comments

I’m just reading an interesting paper published this year by UBC law professor Douglas Harris about the rise of the condo in North American and particularly Vancouver.

As of the 2006 census, he noted, 37 per cent of all residents of Vancouver lived in a strata condo. I can only imagine what the percentage will be when the 2011 census numbers come out.

As Professor Harris points out, this new form of property ownership essentially altered the landscape of Vancouver irrevocably.

I noticed some of you talking about the inherent flaws of condo ownership and alternatives that might provide more (and better) choices.

Love to hear more on that. I’m also curious about whether anyone has had an experience with a condo building that’s come to the end of its life and where all the owners have had to agree on what to do next. (Seems like IanS might know something about this.)

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  • Morry

    ” I can only imagine what the percentage will be when the 2011 census numbers come out.”

    As far as i know place of residence is no longer on the census forms. So you had better have a good imagination.

  • Guest

    I think there was a townhouse complex in Maple Ridge or Pitt Meadows that was rotting due to neglect and was condemned.

    It’s unlikely that you’ll see any condo complexes redeveloped in our lifetimes – it would likely be too expensive so long as there are arterials with single family homes or single storey retail to densify.

  • IanS

    I’ve never come across such a situation, ie. where the building is at the end of its life. I have been involved in a couple of “leaky condo” cases where the cost of fixing the building approximated the cost of building a new building, more or less, but I’ve never seen that done or even seriously considered.

    IMO, the issues there are more technical than legal. From experience, I know that many, if not most, of the elements of a building can be fixed or replaced without knocking the thing down and starting again. But I think you’d need an engineer or architect to tell you just how far that can go.

  • Bill Lee

    Aloha, Frances.

    You won’t get household data, and iffy at that, until September 19, 2012 with ” Families, households and marital status; Structural type of dwelling and collectives

    http://www12.statcan.gc.ca/census-recensement/2011/ref/about-apropos/questions-eng.cfm

    “he 2011 Census contained 10 questions and was conducted in May 2011.
    The information previously collected by the long-form census questionnaire was collected as part of the new voluntary National Household Survey (NHS). This questionnaire covered most of the same topics as the 2006 Census.
    The National Household Survey was conducted within four weeks of the May 2011 Census and included approximately 4.5 million households.”

    So refer to the National Household Survey (NHS) as well as the Census (this year headcount only)
    Your Harper Government reducing facts and raising expenditures to serve you (themselves) blindly.

  • paul

    you will see it happen in the GVRD – likely soon, and most definitely in our lifetime. it just needs to have significant development upside – the most likely situation being the existing strata is underdeveloped for the area, due to a new neighbourhood plan which allows increased density.

  • Bill Lee

    Condominium and the City: The Rise of Property in Vancouver by Douglas C. Harris Article first published online: 16 AUG 2011

    DOI: 10.1111/j.1747-4469.2011.01247.x

    Law & Social Inquiry ( A journal of the American Bar Foundation)
    Volume 36, Issue 3, pages 694–726, Summer 2011

    Abstract
    “Condominium is a form of land ownership that combines private ownership of an individual unit in a multi-unit building with an undivided share of the common property in the building and a right to participate in the collective governance of the private and common property. Introduced by statute across North America in the 1960s, condominium facilitated the vertical subdivision of land and enabled a massive increase in the density of private interests. This article describes condominium and considers the justifications that were offered for this rearrangement of property. It then chronicles the introduction of condominium to the city of Vancouver and maps its spread across the city from 1970 to 2010. In doing so, the article reveals that condominium, a legal innovation without peer in its capacity to increase the density of private ownership in land, has provided the legal architecture of ownership for the remaking of Vancouver.”
    View Full Article (HTML) or Get PDF (1082K)

    Already cited by forthcoming “Shoestring democracy: gated condominiums and market-rate cooperatives in New York” by Setha Low, Gregory T. Donovan, Jen Gieseking Article first published online: 26 AUG 2011
    DOI: 10.1111/j.1467-9906.2011.00576.x
    Journal of Urban Affairs
    “This article develops the concept of shoestring democracy as a way to characterize the resulting social relations of private governance structures embedded in two types of collective housing schemes found in New York City and the adjoining suburbs: gated condominium communities (gated condominiums) and market-rate cooperative apartment complexes (co-ops).”…
    Harris is much too much a home-boy (UBC over and over again, UofT and return). But beware of his grass hockey skills. 🙂
    Now busy with the Cohen fish commission.
    Wouldn’t a “foreigner” have a better perspective on Vancouver?

  • Bill Lee

    Full paper (early version) readily available at http://www.law.syr.edu/media/paper/2011/3/Harris_Condominum_ALPS.pdf
    36 pages, maps, charts, bibliography, footnotes.
    [ Footnote 5 In fact, the impetus for this article came from a desire to get the students in my first year property law classes out of the classroom and into the city, and then from a need to have something to say on field trips as I tried to encourage them to read the urban landscape for what it revealed about property law. ]
    Google “Scholar” (beware) lists “101 related” related articles to the (Syracuse address) paper.

    Harris tried to get various papers at the AAG (American Association of Geographers) super convention in Apri on “Condominiums and the city” according to the Nabbler, but I couldn’t find any.

  • Joe Just Joe

    I too am unaware of any that have gone that far yet, but it’s bound to start happening soon. The closest one I can recall was the complex at Broadway and Naniamo which was neglected by strata councils over a long period and the repairs were going to be excessive (more then the units were worth). No idea how it ended up resolving itself, I do recall at one point the city was considering (not sure how serious) allowing density bonusing/upzoning if it were required to build anew as most of the owners were going to be suffering hardship. I do note some repairs were made to the property but I never heard any more on the matter.

  • brilliant

    Given Vancouver’s unique demographics a condo is the worst option a homeowner could choose. There’s a built-in incompatability between what a homeowner wants and what an absentee landlord wants.

  • PeterG

    There was a complex in the Government Rd area of Burnaby that rotted to the point of no return. It was torn down, but I think that by that time most of the owners had abandoned ship.

  • MB

    @ Frances and Bill Lee, thanks for drawing our attention to this paper, and for providing a link.

    I need time to digest it, but the illustrations are clear — stratas occupy a surprisingly limited amount of land in Vancouver.

    There is now some focus on the glass curtain wall and its tendency in cold climates to fail (membrane and glass faailure is cropping up more in Toronto than here, but it’s still an issue). This is primarily for high rises in future. Our memory banks are still full with information overload on building envelope failures on poorly designed and constructed low and mid rises, otherwise known as condo rot.

    I beleive better design and resiliency have become a more important point of interest with condo buyers who also now make a point of checking past condo board minutes for information on past repair of leaks. The repairs I’ve seen appear to be a mixed bag. Some condo complexes opted for more expensive redesigned building envelopes, others for patching up and painting over. It is more buyer beware than prevously.

    The market for private detached house has no such necessity for record keeping and has always been totally buyer beware.

  • MB

    I should mention that I’ve also noticed more use of the tried and true common brick on new low rises. A good sign in my view.

  • IanS

    @MB #10,

    “The repairs I’ve seen appear to be a mixed bag. Some condo complexes opted for more expensive redesigned building envelopes, others for patching up and painting over.”

    Once the leaky condo problem was “understood” by the engineers, owners were typically presented with two options in addressing the deficiencies. The first was to remove the existing system (usually face seal) with a new system (usually rain screen). The second was to address the problem through targeted repairs and then pursue an aggressive maintenance program.

    I’ve never seen an engineering firm recommend the latter over the former. And I’ve never seen a strata corporation adopt the latter over the former. However, by the time I’m consulted, matters are usually pretty far along and I expect there are many, less serious situations in which targeted repairs have been carried out.

  • IanS

    @MB #11,

    “I should mention that I’ve also noticed more use of the tried and true common brick on new low rises. A good sign in my view.”

    FWIW, I’ve never been involved in a condo where brick was used, or recommended, as part of the repair. The cladding usually isn’t the issue, in my experience.

  • Andy

    Speaking as a President of a ~20 year old strata, condo end of life is a very vague term. Mind you I’m trying to get a repipe passed by my ownership so I might be more pessimistic by February. More seriously, keeping on top of maintenance is a big part of it and it helps if the building was well-built to start. But rain screening, repipes, and new roofs go a long way to keeping a building or buildings young. Also concur that the brick you see on newer condos is more decorative than anything. By the time you get to what necessitates a year or more under tarps brick will not have helped as typically used today.

  • brilliant

    @Andy-3 guesses as to who is holding up the repipe…

  • Max

    I live in a condo and have since 1993. Luckily, we have had few issues, just the basics you would expect to deal with – roofing, interior/exterior painting, flooring etc.

    The only time we ran into a glitch was due to an owner not reporting an issue that festered – greatly.

    Our building only allows X number of rentals – those that bought from the contractor originally can rent, otherwise it is owner occupied.

    Maintenance is the key.

  • Julia

    I watched my strata council patch and calk their way into a 4 million dollar envelope failure on a 20 year old building. I managed to sell and move before the engineering report was released. I was facing a $45,000 assessment. I felt very badly for the young couples with very little money down trying to deal with the additional costs. I recall doing the math on tearing the building down and starting again. Getting 84 owners to agree – how on earth do you do that?

    My building was owner occupy- no rentals and we struggled. Next door there was a similar problem with a high percentage of rentals. They had to go to court to get the work done.

    It would appear that investor landlords are not fans of maintenance.

    I hope someone has a plan for all these buildings when they hit the 40 -50 year mark and they are falling down.

  • RON

    But sooner or later they are going to fail, some sooner than others. Little Mountain was demolished after fifty years, we were told they were beyond repair.
    Living in a condominium you are governed by the Strata Property Act which lays down a host of rules and regulations governing the setting up and running a strata which all owners are required to observe subject to fines and other punishment. But nowhere as far as I can see ( maybe we need a lawyer to translate some of the jargon ) any mention of what happens at the end, as PeterG #9 says “by that time most of the owners had abandoned ship .
    I think it’s about time that our legislators started to complete the legislation and deal with the compensation issues which will, in twenty or thirty years time be colossal.
    As a starter the land will have value and an arrangement where the land is purchased by the municipality could be the start of one option ?

  • MB

    @ IanS, I find it so sad that everyone, developers, architects, builders, purchasers and city administrations pushed or allowed or fell for imported California design and materials in a Pacific Coast rain forest.

    Deep West Coast soffits and rainscreen drains + vents at each floor level just make so much common sense, as does a small void between the siding and the sheathing to allow water to exit once it enters. Stucco slathered directly to the siding mesh with no void behind it or venting for several floors on a wall with little protection was a recipe for rot, especially when oriented strand board instead of exterior grade plywood was used as sheathing. Some companies ironically started to market pressure-treated plywood sheathing when condo rot really hit the market. They actually expected the water to enter the walls and did not adequately address the rainscreen and wall structure itself.

    Water penetration at windows and exterior wall joints is just poor design and / or poor construction. Maintenance, as Julia reiterates, is an onging issue, but I don’t think it’s a deal killer in buildings less than say 10 years old.

    We also have to keep in mind that wood frame buildings constructed in winter dry out and shrink by perhaps 1/2″ per floor which can crack drywall and break seals. Some builders are now erecting huge shrink-wrap skins over their buildings.

    Brick is a long lasting material than can withstand the elements. There is usually a void behind a brick facade to help vent and drain the rainscreen system, and the courses of brick can be reinforced with thin rods horizontally and tied to the wall behind at regular intervals for seismic stability. Brick can also be sealed to increase its lifespan.

    This topic is related to “affordable” housing. If a condo is affordable by dint of being cheaply built, then it’s not affordable when the repair bills mount. It costs money to design and build and therefore purchase better quality housing.

    I wonder if structural integrity and energy efficiency can catch up to the marketability of high-end appliances and surface treatments? Judging by the dicussions I had with my wife over choosing between a new high efficiency furnace and new custom millwork, I’d say the jury is out. We opted for both to maintain peace in the household, although it busted our budget.

  • Bill Lee

    Looking at the maps in the Harris paper, I was struck by the strata building concentration in Marpole.
    I was there last weekend and noticed that they were mainly 3 to 4 storey walkups (many had an elevator, so not really walkups) . If end of life is coming, and the recession/depression hits along with drop in resale values, will these condos be bulk sold off for block-breaking super towers.
    The Courier posited this kind of thing recently, though there were a few counter arguments in the few letters to the editor permitted.
    Now that the Visionistas have sold out the bottom of Cambie for super towers in a deathstar complex, can Marpole be far behind. Other than the airport height limitations which surely a few bribed Federals could get around.

  • MB

    @ Bill Lee 19: “Now that the Visionistas have sold out the bottom of Cambie for super towers in a deathstar complex, can Marpole be far behind. Other than the airport height limitations which surely a few bribed Federals could get around.”

    That’s pretty creative, Bill!

    I don’t think Marpole (i.e. the south end of Granville) will suffer quite the same fate because it doesn’t have a death ray rapid transit line to justify it.

  • Julia

    MB, tell you a secret, the concrete buildings are failing too. Water is a nasty thing.

  • Andy

    brilliant – I really can’t blame anyone from wishing they didn’t have to come up with around $8000 or so as part of repipe. But it’s going to be paid one way or the other. I just would rather cut to the chase. At least repipes don’t cost as much or last as long as rain screens.

  • Andy

    I mean in terms of how long they take once the work starts.

  • ThinkOutsideABox

    MB, tell you a secret, the concrete buildings are failing too. Water is a nasty thing.

    Of course. Cracks form in concrete due to seasonal contraction as well. My vague understanding of the engineering is that stress points are built at specific concrete joints so that when the inevitable cracks form, the contractor would know where to look for them and fill.

    But I know of at least one tower downtown that did not build with that in mind and now the tower is forming cracks randomly throughout.

    The concerns I see here seem more to do with design and construction than with form of ownership.

    MB, I mostly agree except I find no extra comfort just because something was built within the last 10 years. I encountered a nine year old building when shopping for a unit two years ago that was experiencing water ingress due to failing window gaskets.

    Glass clad towers aside, how is it that eastern city’s with harsher climates can be built to withstand heat waves to thunderstorms to sub zero blizzards; yet here the construction eventually fails to rain? Am I the only one who thinks it’s crazy that the way some buildings are spoken of assumes a lifespan measured in decades?

  • ThinkOutsideABox

    re: my first sentence above should have been italicized as I’m quoting Julia.

  • Guest

    Water penetration on towers is quite dependent on exposure. In my building, once a neighbouring tower was built to the south, the limited water ingress issues that some suites experienced dispapeared, since the new tower buffetted the winds that formerly slammed our building.

    Regarding concrete towers, if the tower has post-tensioned cabling in the floors and leakage is allowed to impact it, then the issue becomes structural and a major cost to fix. I understand that was the case at Pacific Point (Homer & Drake), one of the first towers in Vancouver to use post-tensioned cabling.

  • Roger Kemble

    Thu Condo

    B.C. enacted the Strata Titles Act in 1969 and changed it to the Condominium Act in 1979. Condos have been around for a while.

    The concept began to fall apart sometime in the early ‘80’s when stains, rot and leaks began to appear causing owners grief enough, many moved out. The blue shroud signals “Leaky condo” even today: thirty years on.

    Older buildings, i.e. High Croft, Granville @ 16th, were built before the building code went rogue.

    By rogue I refer to a desire to be modern and in some cases conflicted interest committee members’ over enthusiastic to approve untried, OSB board etc., materials. (Tyvek {non-structural paper sheathing} is not the answer).

    My motto: “moisture in, moisture out.”. Any building in a wet climate will incur moisture problems. Any occupied, sealed building, in any climate, will incur moisture problems.

    Question. What is important? Green buildings and coddled inhabitants or buildings that last beyond the mortgage.

    Evidently, I am alone, holding this opinion! Established envelope consultants disagree hence the problem will always be with us.

    Axiom: open windows, turn down the thermo!

  • Roger Kemble

    Acknowledgement.

    Our History of Wasteful Buildings
    Building Green From the Ground Up.

    http://theautomaticearth.blogspot.com/2011/11/november-22-2011-europe-tumbles-america.html

  • IanS

    @MB #18,

    I’m not an architect or an engineer, so I can only comment based upon the various reports I’ve dealt with in the course of litigating these issues.

    I’ve never seen a report which identified any specific cladding as being at fault, be it stucco, EIFS or brick or whatever. As I understand it, the building envelope should be able to prevent water entry regardless of the specific cladding.

    Having said that, stucco does crack and it has been identified as a contributing factor, but I’ve never seen a case where it is a significant factor.

    The element of the “California design” you cite does give rise to vulnerabilities, but those seem to be more the lack of overhang than anything else. Surprisingly, the lack of overhang seems to be a major problem.

    In my experience, the “leaky condo” problems arise out of poor detailing on complex building, coupled with a “face seal” system which cannot handle significant ingress. As I understand it, face seal buildings have been used successfully for some time, but were unable to handle the more complex designs which developers started to throw up in the mid to late 1980’s.

    Again, this is my understanding from dealing with experts in litigation. I’m not an engineer myself.

  • Roger Kemble

    IanS @ #29

    I have never had an envelope failure or indeed a lawsuit of any kind in sixty years of practice: so what do I know?

    I detail-vent all cavities. My recent 65 units condo is steel and concrete, non-soluble, through out. In suite kitchens, laundries are vented to the outside.

    Residents still create moisture with babies, boiling water, showers etc.

    Buildings move: temperature, wind etc. Local leaky condos started out with OSB over laid by acrylic stucco: the former is compressed wood mush, the latter a thick brittle paint coat.

    Some developers create numbered companies as a backstop. You are no doubt familiar with them!

    When will we ever learn?

  • MB

    @ Think 24: “Glass clad towers aside, how is it that eastern city’s with harsher climates can be built to withstand heat waves to thunderstorms to sub zero blizzards; yet here the construction eventually fails to rain? Am I the only one who thinks it’s crazy that the way some buildings are spoken of assumes a lifespan measured in decades?”

    The CBC ran a piece recently on The National on this topic. Apparently the major interior-to-exterior seasonal temperature swings are causing failure of the seals from excessive differential expansion and contraction. The outside glazing and frame expands and contracts at a much higher rate than the interior.

    They also questioned the notion that glass curtain walls are appropriate for Canada’s cold climate (Vancouver’s wet climate is an issue too) and suggested a more solid wall profile with more insulation would be a better response.

    http://www.cbc.ca/toronto/features/condos/

  • MB

    @ Roger + Ian S, thanks for your knowledge on this.

    It’s clear that older walk up apartment buildings from the 40s survived well (some gems on South Granville and the West End), even with stucco and no soffits. They may not be very energy efficient, but something was done right.

    Roger, is there a way to increase energy efficiency while still venting the wall cavities?

  • Julia

    yup… stop building plastic bags for houses. I know an old time builder that used to slash all the vapor barrier in his walls 5 minutes after the building inspector left. Perhaps he was on to something.

    Single family dwellings have the same problems, just nobody is talking about it.

    Now that the government has suspended the interest free loan program, (thinking the problem is finished with) it is going to get harder for these condo’s to be repaired.

  • Roger Kemble

    Roger, is there a way to increase energy efficiency while still venting the wall cavities?

    MR @ # 32 You’ll have to label me a “green” skeptic on this one.

    There is no way to rational frame (not just wood frame) integrity and heat loss.

    When a living structure is occupied by living structures (i.e. us) we must breath.

    The heat exchanger at OV, for instance, may extract btu’s from the sewer but how many btu’s are expended in the separate building to house the system, manufacture, transportation to site, distribution to individual suites . . . etc!

    If we research in too far jobs will be jeopardized!

    Click on my name for wasteful buildings: it is not cut and dried. Some of this stuff is good some, not. I do not have all the answers!

    IMO there will be no choice: a balance will be forced upon us by many factors. Right now we are reveling in a Green euphoria.

  • Bill Lee

    Yorkshire Lad /Roger Kemble Dec 14, 2011 at 8:29 am #30 said “Buildings move: temperature, wind etc. Local leaky condos started out with OSB over laid by acrylic stucco: the former is compressed wood mush, the latter a thick brittle paint coat. ”

    What about fire? Isn’t OSB glues (Oriented Strantd Board [ “Glued sawdust” ]toxic when burnt?
    I know that it is important to get out and save lives, but does it leave residual toxicity in the air and apartment?

    Acrylic stucco! Lime putty (real plaster) is good. And a thick browncoat of it.
    I have seen local developments with what I think is a thin brown coat (less than 2 cm) then coated with decorative stone. This does not portending a good weather seal. Thick brown coat sort of seals itself from minor cracks.
    http://en.wikipedia.org/wiki/Stucco#Modern_stucco (but beware of wiki false “authority”; it can be changed in a second). [ Seems no other language put up a longer entry in the Wiki system ]

    But all such plastering requires a lot of expensive hand work, and pouring or panelling is quicker per square metre.

    Still we are talking about “always new” buildings and what is the life of current buildings in the new “self-ownership of apartments” that engendered this discussion.

  • Michael Geller

    Frances, a very important topic.

    One of your readers is correct. As I reported in your Sept 22 2009 blog posting related to Little Mountain:

    The worst project with water problems is likely the 15 acre Glen Robin Place (Strata Plan NW-580) project in Burnaby. This California style development was built by the provincial government as subsidized rental housing in phases between 1975 and 1980. There are 96 apartment units in three story structures and 24 townhomes. The provincial government sold the project in 1995 and a private developer reorganized it into strata units and units were sold to homeowners and investors.
    The architects and builders are long gone and the combination of investors and homeowners with their lifetime savings at risk is a difficult decision making combination. A condition survey in 1997, is an eye opener about the deterioration process of wood construction if buildings are poorly designed for the wet climate. There are problems with the exterior cladding, exterior walls, windows and sliding doors, party walls, decks, drainage, railings, kitchens, bathrooms, roofs. According to professional investigators, not even the concrete slabs are sound. One architect has commented that “it is likely the whole development will have to be demolished, possibly eliminating any investment the strata owners have.”

    Guess what happened. It was torn down and the site redeveloped.

    As you know, I have been very concerned about the longer term future of Vancouver area condominiums since in BC, unlike other provinces, most Strata Corporations are not required to build up a satisfactory ‘Replacement Reserve’.

    Combine this with the tendancy for Strata Councils to encourage their Property Managers to keep monthly fees low, especially when there are a lot of investor owners, and you have a recipe for disaster…well, disaster may be a strong word, but when a couple that struggled to find a downpayment is suddenly required to pay another $45,000 or more, it can be a disaster.

    I recently gave this matter some consideration when my daughter purchased an older condominium. Since I’m supposed to know what I’m doing when it comes to real estate, I tried to do the right thing….only to realize that it is very, very difficult, especially in a competitive market.

    At the risk of exposing my foolishness, here is a link to a blog posting that I wrote after the experience. I do hope some stratas will consider my key recommendation, both for their own sake, and that of potential buyers.
    http://gellersworldtravel.blogspot.com/2011/08/buying-condo-should-you-get-inspection.html

  • Bill McCreery

    This discussion about envelope failures has been interesting. There appear to be some misunderstandings of the building science regarding the physics of what is happening that causes these failures. I have prepared many expert reports on such failures over the past 15 years.

    Based on my own research there are typically two causes for failures:

    1) poor detailing and/or construction that allows moisture penetration into, or traps it within the building envelope;

    2) the inability of the envelope to dry in a timely manner.

    The failures in the 1st instance were caused to some degree, and certainly made worse by the so-called California designs. However the primary cause was insufficient design detailing and on-site reviews to monitor construction quality. In the 70’s and 80’s it was impossible for architects to get developer clients to pay for site reviews. We were seen as an impediment to getting the job done.

    The rationale was the City building inspector does that, why should we pay you? The reality was that the City inspector could not spend the time necessary and did not have the detailed knowledge of that particular project. We’ve gone the other direction now. The architect, S,M & E as well as the building envelope consultant review the construction thoroughly. But, IMO, if the current crop of as-built walls ever get moisture into their cavities, they too will be toast.

    In order to understand what is happening and why with respect to the 2nd cause it is helpful to look at the evolution of the wood frame wall starting in the 1950s.

    The typical 50’s “concealed barrier” (not face sealed) wall started with say stucco cladding on a tar paper sheathing/drainage plane on shiplapped sheathing 2×4 studs with R-8 batt insulation on a lath and plaster interior finish. This wall dries to the exterior and the interior depending on interior and exterior temperature and humidity differences. This wall was not energy conserving due to its low insulation level and lack of air tightness. But, it did not rot. As mentioned, there are many, many examples of buildings with these or similar assemblies all over the Lower Mainland, and which have not failed.

    This wall assembly worked with innovations such as plywood sheathing, Tyvek and better poly vapour barriers on the warm side of the wall up until the Building Code changes of 1985-88, and the same but earlier, 1970-72 CMHC building Standards required at that time for CMHC financed projects. Hence CMHC buildings started failing earlier than the later typically condo projects.

    The Code changes included:

    1) increased insulation levels that significantly slowed the drying process.

    2) greater air tightness – typically the 6 mil poly vapour barrier and the Tyvek sheathing were taped, creating air barriers on both sides of the wall, and the plywood/osb sheathing and poly vapour barrier created two vapour barriers on both sides of the wall as well – this results in any moisture that does get into the wall cavity is trapped and causes wood rot or steel rusting = failure.

    3) a Code required exhaust air system that was supposed to remove overly moist interior air from dwelling units, but in practice it did not work.

    These changes were and are particularly problematic in our Wet Coast climate zone because of our moderate temperature ranges and 6 months of persistent exterior moisture that reduce the ability of the wall to dry to the exterior while the poly vapour barrier prevented drying to the interior. That is why the problem appeared here 1st and has been more sever than in the colder parts of Canada.

    Brick cladding is simply one variation of a rain screen wall assembly. Brick has some moisture performance capabilities that are better than say acrylic stucco, but the main advantage is the air cavity and relatively, if constructed properly, better drainage cavity.

    The tests on Tyvek and variations indicate they perform better than tar building paper re: vapour diffusion. They also are less likely to be wind damaged. The problem is when it is used in an assembly where acrylic stucco is directly in contact with it. The acrylic stucco bonds with the Tyvek compromising its ability to resist the transmission of moisture. This results in moisture being thermally driven from the exterior via the stucco and through the Tyvek into the vulnerable wall cavity = rot. I prefer to use Tyvek, but without the tape so that it does’t act as an air barrier, just as the moisture barrier it’s supposed to be.

  • Bill McCreery

    Frances, I thought you were on holiday??

    I have other thoughts on the actual topic, but I do have another life. Hopefully later.

  • RON

    Thank you Michael for getting back to the main issue. Most of the discussion so far has been about construction methods to avoid failure, I believe that my condo will last a long time, standing seam roof, enormous overhand, cedar siding on rain screen construction etc. How long ? can’t predict but there are others which will reach their end long before mine, many others, and that’s what we should be addressing . Michael quoted a five figure number, when it next happens will it be six figures ? It’s a major human problem ? He also mentioned “Replacement Reserve the legislation should be amended to cover this issue.
    As a parting shot I would suggest that wood frame was inappropriate for multi family dwelling construction anyway, internal noise, fire spread, and above all greater permanence.

  • ThinkOutsideABox

    Hi Bill,

    It’s too bad that you aren’t on Vancouver council. Your experience and knowledge in this area would obviously have benefited council and the city regarding the majority of council’s preoccupation, that being land use proposals.

    Instead Canadian vegetables decided to make petty hay for where you sleep at night in favour of, as Roger puts it, shiny trinkets. People get the government they deserve.

    I hope in your other life you can still find time to contribute to the pubic good in some way.

  • Bill McCreery

    Ops, a typo, text should read —

    “… and the same but earlier, 1980-82 CMHC Building Standards required at that time for CMHC financed projects.”

    Thank you TOAB. I do hope to be able to make some kind of constructive contribution, and as I’ve said, I do enjoy these conversations with you and others here. The no-nonsense ideas and quality of the exchanges never fail to impress and stimulate me.

  • Susan Lazaruk

    Selling out beats doing the repairs for these desperate leaky-condo owners: Complex, costly process finally lets them kiss their mouldy mess goodbye
    The Province
    Sun Aug 8 2004
    Page: A18
    Section: News
    Byline: Susan Lazaruk
    Source: The Province

    http://www.fpinfomart.ca/doc/doc_display.php?key=ar|3528257|vapr|20040808|24879910

  • Morry

    When i re-modled my 1929 home I completely removed the outside materials to expose the studs. Solid and dry and not a piece of insulate nor vapour vapour. I installed good insulation and no VAPOUR barrier, using only that which came with the insulation. Then i covered it up with shiplap, and cedar siding. 25 years later all is well and DRY. So what if the house “breathes’ and lets in air. That is good!

    Later on a so called expert came by and wanted us to make the house Air Tight. I sent him off and told him he was full of it.

    Same thing for al those three story wood frames that were built in the 50’s and sixties. Bone dry. Same goes for all those 10/15 or so storied buildings built in the 30s and 40s etc. DRY. Why? because they breathe.

  • MB

    Bill, Michael and Roger, excellent exchange.

    My house is 101 years old and dry. But draughty. Having new “old” fir sash windows with outside storms really helps. The previous owner “modernized” in the 70s and out went all the fir sash windows, three-panel doors and 10: baseboards. In came single pane aluminum windows that whistle whenever the wind blows, cheap hollow core mahogany doors, and 2″ finger jointed pine baseboards. (Not to mention lowered ceilings that hid many electrical and ducting sins.) Bringing back the Edwardian architectural detailing has been a 12-year labour of love, and we’ve noticed less cold air infiltration and better sound attenuation.

    The only rot I found was at the rear corner where the downspout from the roof emptied and splashed back. Otrherwise the two-storey walls are protected by 24″ soffits.

    I’m wondering if ground-exchange geothermal heating is worth it? I really like radiant heat as opposed to forced air (my wife has asthma), but my assumption is that a geothermal system would work better as the initial heating / cooling system in a new house rather than as a major retrofit in an old house.

    Several new concrete condo complexes (mostly low rise) have geothermal system pipes cast right into the concrete floors. Of course, newer buildings have better insulation and the payback period for geothermal is shorter. And geothermal is tried and true compared to the newfangled heat-from-poo system built at the OV. Too bad about the surprise exorbitant monthly charges on that.

    I’m even more convinced after reading Bill’s comments that having superior insulation is possible so long as the roof is designed to shed rain before it contacts the walls (e.g. deep soffits), to detail all elements that pierce a wall to shed water first (windows, drier vents, etc.), to allow water an escape route once it gets in, and to isolate the insulation from moisture.

  • A Dave

    “The (affordable housing) task force will be composed of members with expertise in the areas of finance, real estate, market development, architecture and design, academia, federal and provincial policy, non-market housing development and land use planning.”

    C0-chaired by the Mayor and a large condo developer, and deliberately excluding input from any citizen’s groups or the general public, our Council seems poised now to hand the keys to the City’s greatest asset — the Property Endowment Fund — over to the very same group of real-estate moguls that got filthy rich building flytrap condos and making the city unaffordable.

    Is this the civic version of a “privatization” ponzi?

    Is this payback for $2 million in campaign donations?

    My guess is, the members of this task force are secretly laughing their asses off at Vision’s gullibility right about now, meeting over G&Ts at the Vancouver Club to devise ways they can squeeze every last penny of profit out of this while branding it “affordable” and “green” during official Task Force meetings.

    The central logic applied to affordability will undoubtedly be “increase supply”.

    STIR 2.o: coming to a city-owned building site near you.

    Sorry to be so cynical, but c’mon, with no real opposition on Council to counterbalance this Task Force, and a media trained for decades to drink realtors’ kool-aid, what else can we reasonably expect?

  • Bill Lee

    @MB // Dec 15, 2011 at 11:26 am #46

    Geothermal? Soil is 7 degrees C so differential has to be more to make it worth it.

    The father of Malcolm Gladwell (The Tipping Point, etc.) is a UWaterloo professor and gave basic [horizontal] easy system calculations. But he had the acerage. I would like to see the city give up the street and boulevard rights for housing geothermal.

    http://gladwell.typepad.com/gladwellcom/2006/08/the_case_for_ge.html

    @A Dave. Let us remember Concert Properties given land for Union-funded housing. Sigh! Podmore and Poole putting a fast one over the city.

  • Glissando Remmy

    The Thought of The Day

    “Want t0 make Easy Money? Franchise Opportunities! “ICH BIN EIN STUPIDER” T-shirts, priced 2 move… for all Vision Vancouver Voters!”

    More here:
    (http://twitter.com/glissandoremmy)

    A. Dave #47… complete agreement!

    “C0-chaired by the Mayor and a large condo developer, and deliberately excluding input from any citizen’s groups or the general public…”

    Funny thing is, Gregor feels the need to co-chair, LOL!

    …the Mayor!? …the Developers!? … the Vision!? … the Chinese!? … but where are … the Vancoueverites?

    Ballet.

    http://www.youtube.com/watch?v=VwlTcE-hcgc

    … my point exactly!

    We live in Vancouver and this keeps us busy.

  • Joseph Jones

    If growth in construction activity is desirable for the local economy, why wouldn’t developers and planners and politicians deliberately seek to promote short-lived buildings that need lots of remediation along their rapid path to teardown?

    That’s a sustainable business model! Just make sure those projects match up with a series of short-lived unaccountable numbered companies.

    Corollary political strategy: Make every effort to reduce or eliminate fee-simple tenure (thus disincentivizing accountability on the ownership side as well).