Thursday, December 23, 2010
Renovation/Blog Hiatus
We will be back at it in a big way in early January. Thanks for your patience
Monday, October 25, 2010
Energy Star Dishwashers - Better than you
Thursday, October 7, 2010
New Kitchen Smell?
The main reason: VOCs. Back in our cabinet post we discussed VOCs: basically nasty off-gassing pollution bad for you and the environment. They also smell. Some people love the smell of fresh paint, or that new house or new car smell but unfortunately that is pretty much all VOCs.
With our "EVO" low VOC cabinets from Aya, the only thing we could smell in them was wood. Apart from the cabinets, we were also really pleased with the other low VOC products we came across:
- Lepage Green Series Acoustical Seal. Has ultra-low VOC rating. If you noticed that our acoustical seal was white and not the traditional black in our insulation pictures that is why. Works really well though. The only difference we found was while it seems to remain permanently flexible it doesn't stay malleable as long. So if you put a bead behind a vapour box or barrier set it in place immediately. There was a couple places where we may not have pressed it flat until the next day when we came back to drywall and it left a bit of a raised bead compared to traditional sealant.
Kitchen: primed and ready for paint |
Sunday, September 26, 2010
Why our kitchen does NOT have CFLs
Why? For starter's they are even more energy efficient. The most efficient LEDs can use 1/2 the energy of CFLs. LED light bulbs also last three times longer than CFLs. CFLs boast on average a lifespan of around 8,000 to 15,000 hours, LEDs are closer to 50,000.
But more importantly they have no mercury. All CFLs contain at least 1mg of mercury and most have 3 to 5 mg. May not sound like a lot but last year there was over 100 tons of mercury put into CFL bulbs in the United States alone. So don't throw them in the trash, otherwise all that mercury ends up in the landfill and ultimately the groundwater. CFLs need to be recycled and you can often return them to the store they were purchased at.
To ensure a fair and balanced blog, I will now point out though that in lots of areas the use of a CFL will still result in a net reduction of mercury emissions. Coal power plants have mercury emissions of varying degrees but on average the use of a incandescent bulb for 8000 hours will cause 6mg of mercury emissions. So if you live in an area where the power is generated by coal, a low mercury CFL will reduce our power consumption and could result in a net emission of only 3 or 4mg.
If all of that wasn't enough this week I also came across the following video: "Dirty Electricity". The CBC report by Geeta Nadkarni was part of the "Be Green" series. The report highlights the fact that CFLs induce pulses of high frequency electromagnetic energy in your home electrical system. The concern is that these Electromagnetic fields (EMFs) are getting linked to a wide range of health problems. I am sure there are experts on both sides of that debate but it provides one more advantage in LEDs favour.
Efficiency, lifespan, no hazardous chemicals, and potential health benefits. Sounds like a clear victory for LEDs over CFLs. So our green kitchen is obviously lit purely by LEDs.... right?
err....
Is it the ideal solution? No, but it seemed like the right call for now.
Saturday, September 18, 2010
Ahhh, a working kitchen
You will have to forgive the short hiatus in the blog but the reality was between my day job, the renovations and preparing for our new baby (due at the end of the month) there just wasn't time. I will go back and post details on what happened over the last three weeks but where we are today:
I like the organic look of our temporary counters |
Saturday, August 21, 2010
"Buying Local" also works for home renovations
- Vapour barrier
- Acoustical sealant
- Drywall mud
- Drywall
- Rigid insulation
- Floor leveller
- Primer
- Paint
- Roxul (depending on were the Basalt was mined)
I anticipate that we will get the 8 point maximum for Environmentally Preferable Products but I will only show 5 right now on our scorecard to the right because that is where we would be if we stopped construction today.
Sunday, August 8, 2010
Approvals!
Added to the regular workload was two procedural challenges. First, we had a non-structural wall that we were planning on knocking down. The city of Dollard-des-Ormeaux was willing to let us knock down anything that wasn't load bearing, but the oweness was on us to prove it wasn't a structural wall.
Once we had it all stripped down and could show that the 2x3 wall had no headers and was built parallel and between the ceiling joists it was an easy sell. The wall came down the same day.
The second step was LEED EA prereq 2.1: Insulation must be inspected by the green rater prior to the installation of drywall. Because the quality of the insulation and how it is installed is so critical to the overall project, they need to verify that there are not any issues. In particular they focus on ensuring the whole enevlope is sealed and insulated and there aren't any hidden gaps. It is this inspection where the fireplace would have been flagged.
But we passed with flying colours!! So we are on to drywalling.
Friday, July 30, 2010
Insulation: There is more than just the pink stuff
With insulation, it all comes down to R-value. R-value is essentially the “Thermal Resistance” of a material. The higher the number the harder it is for heat to pass through. Seeing as this is the job of insulation, R-value along with price are usually the deciding factors in picking your insulation.
There was a period when fiberglass insulation was the beginning and the end of your home insulation choices. Nowadays, it is part of a subcategory. The list below is by no means exhaustive, but it covers what we felt were viable insulation options for our project. If you really want details there is a pretty good insulation guide put out by Natural Resources Canada.
Batt insulation: flexible insulation that fits between the wall studs. This includes traditional fiberglass but also the awesomeness of Roxul. Its easy to install and typically the least expensive.
Spray foam: A spray on insulation that provides not only some of the best insulating power per inch but also acts as an excellent air/vapor barrier. Can be expensive and for any significant job requires an outside contractor. Small jobs can be done by DIYers like we did behind the fireplace.
Rigid Insulation: Rigid foam panels. Again increased R-value and eliminates thermal bridging but can be expensive.
Now, if you didn’t catch it above, I am a fan of Roxul. So much so that it makes me wonder why you still see so much pink stuff in Home Depot’s aisles (Roxul is green). Roxul is made from stone wool: essentially rock and recycled slag spun into fibres. The result is a product that is:
- Easy to handle, cut and install
- Offers great R-value: R-14 vs. R-12 for fiberglass (although in writing this I have discovered both a new Roxul and new fibreglass rated to R-15)
- FIREPROOF! (it is rock after all, and I guess officially it is only fire-resistant as it will melt at 2200 degrees F)
- Made from 40% recycled material
- Minimal additives, no off-gassing, etc
But for our project we needed more than just Roxul. For LEED certification we needed a minimum of R-20. Since our exterior walls are 2X4 construction we identified three options to get us over R-20:
Option 1: Spray insulation between the studs: R-24.5
Option 2: Build up the wall 2” and use 2x6 Roxul: R-22
Option 3: Use Roxul in between the 2x4s and add 2” of rigid insulation: R-24
While they all seem to be in the same ball park performance wise, the R-values above are just for the insulation and do not account for a phenomenon called “Thermal Bridging” . Say you build a beautiful 2x4 wall and have it all nicely insulated with R-24.5 spray foam. That is great but the wood studs conduct heat too and they only have an R-rating of 4. So they act as a “bridge” for the heat to pass through. If you take this into consideration then the R-value for the wall is: 17.1 (I will not bore you with the equations). Looking at the R-values for the wall, the revised numbers become:
Option 1: R-17.1
Option 2: R-19.5
Option 3: R-22.6
Option 3 has the rigid insulation that covers the studs and thereby eliminates part of the thermal bridging explaining why it performs better. The above calculations also are for standard framing (a stud every 16”), if you were to account for all the extra lumber around the windows and doors the performance gap between Option 3 and the others would get even bigger.
Wow…that was a very long lead into to explain that we are using R-14 Roxul with 2” Styrofoam on top:
First step was to cut and fit Roxul into all stud openings. It cuts great with any serrated knife (just don't tell Jody that I used one of our good kitchen knifes).
So what does the mean for our LEED points: nothing really yet… First off we have only insulated 10% of our house so we haven’t met any criteria yet. And we do not get points for the insulation itself but rather the overall efficiency rating of the house (which is big points: up to 28 but we are hoping for 10). When complete, we are also hoping to get a half point for recycled content in the insulation.
Saturday, July 24, 2010
Our Blog Logo
The new logo at the top of the page is courtesy of our 5 year old son. He had fun going through the deconstruction leftovers looking for materials. If being used in crafts qualifies as waste diversion, he has certainly being doing his part.
I need to try to find a better background to put in on but right now we are two weeks behind schedule (&%$# fireplace) so I am off to insulate.
Saturday, July 17, 2010
The Fireplace: Round 2
- no insulation
- no air barrier
- no vapour barrier
- and the wall cavity was filled with bricks.
The good news:
- The wall cavity behind the fireplace was framed like a door with a header beam so we were dealing with one large space instead of three or four little ones.
- The fireplace was not physically connected to the outside wall
- the bricks within were not structural (no overhead load). The space actually seemed like there dumping ground for excess bricks and mortar.
It was a challenge but several hours and two blood blisters later, the wall was empty and I had a giant pile of bricks.
Just like the rest of our Kitchen Deconstruction, I wanted to ensure that as much of that material wasn't ending up in a landfill. So after seveal more hours of work we had:
- 120 re-usable bricks
- 242lbs of mortar (re-usable as in-fill)
- 98lbs of partial or damaged brick (to be re-used as decorative mulch)
But we also still had a large empty wall cavity. Because of the shape and size, we would be challenged to get both traditional insulation and vapour barrier installed and properly sealed. So we opted for spray foam.
There will be times during the renovations that we bring in professionals to apply spray foam. But we weren't calling in the pros for 30 square feet. Instead I picked up the Touch n' Foam professional series kit at Rona. I will admit that I felt very hypocritical buying this one-use-wonder after my "Great Stuff" post.
But it worked. It needed to be applied in two inch layers and allowed 20 minutes to set. But it actually worked really smoothly. It didn't take long to have a well insulated wall with built in vapour and air barrier.
So was all that work worth it? Actually it probably was. As much as I was cursing LEED throughout the process, they were right. Brick is a horrible insulator and had we gone and insulated our whole house and not bothered to fix the problem behind the fireplace 10% of our total heating bill would have been attributed to that 3 and a half feet of wall.
I stated early on that one of the reasons for doing LEED certification was to keep us honest and I think this is a prime example.
Saturday, July 10, 2010
How our Kitchen will be Green: Vampire Energy
Want to knock 10% off your power bill? On average that is how much power your home consumes not using appliances.
I believe the official term is "standby power" but it also called phantom load or my preference: vampire energy. This is essentially the amount of electricity that is sucked in by appliances, adapters, etc. just from being plugged in. There are two big culprits here:
- Standby features: anything with a clock, a power light or a remote control needs electricity when it is off. The flat screen TV doesn't know your are asking it to turn on via the remote unless there is a powered sensor constantly checking for a signal.
- Adapters: anything that has an adapter on the power cord is consuming power even if nothing is plugged into the other end. Chargers for cell phones and other electronics is the big culprit here.
I took a quick tour of our house and the vampires added up
- TV
- DVD player
- laptop
- VCR (yes we realize it is 2010)
- wii
- stove (digital clock)
- blender
- phone chargers (x 2)
- electric toothbrush
- clock radio (x 2)
- wireless modem
- Dustbuster
- vacuum cleaner charge station
- bread maker
- battery charger
We currently have no kitchen; so no microwave either but that is another common one.
So how do you stop it? unplug! .... but that can be easier said then done. Most people, including us, won't bother unplugging the TV every time they are done watching a show. Luckily, our house already has some switch controlled plugs. Our entire home entertainment system is on a power bar plugged into a socket that is controlled by a wall switch. When we leave the room we flip the switch: no more vampire energy.
Taking this into consideration for our new kitchen we realized that there are several appliances and chargers that we would like to leave plugged in for convenience sake but do not want to be drawing power. So the double outlet on the counter and the outlet by the desk with have switches built in.
Not a big change but hopefully it will help stop a little more of the energy drain and save us some money while we are at it. Or as this ad puts it, help us lose an excuse.
Wednesday, June 30, 2010
hmmm, maybe "Great Stuff" isn't so green...
I'll probably get into more detail on air leaks in another post, but for now lets just say that they are bad. One of the best ways to improve the efficiency of your home is to stop all your warm air from sneaking out. One highly recommended way of doing that is to fill all the voids between your windows and their frames.
So when all the kitchen walls were exposed, I grabbed a can of "Great Stuff - Window and Door" and started sealing. "Great Stuff" is an all purpose expanding polyurethane foam. It expands to fill the void and creates an airtight seal, insulating layer and repels water. The window and door version keeps the expansion in check so that it doesn't cause warping or cracking of your window.
I happily filled the cracks, emptying the whole can and then trimmed off the overfill. It was at this point that I took stock of the mess and waste I had generated
Keep in mind, we just finished our deconstruction efforts where we trying to ensure we created no garbage. So when I saw that one window's worth of insulation had generated a small pile of un-recyclable trimming and an empty aerosol can, I was disappointed.I think what bugged me the most wasn't just the garbage, it was the fact that I had no idea how green the product was or if there were better alternatives.
I decided to do some after-the-fact investigation (I do have 12 more windows to seal) on the Internet. Below was what I managed to scrounge up for some environmental pros and cons of Dow's "Great Stuff":
Cons:
- throw away packaging
- non-renewable product
- material is non-biodegradable and not easily recyclable
- may discharge VOCs during application but doesn't appear to off gas continually.
- potentially toxic to aquatic life
Pros:
- no CFCs (non-ozone depleting, but I didn't think much was these days)
- no solvents
- contains no nuclear waste
- it works
The biggest advantage seems to be that last one. In an older house up to 17% of your heating bill is for energy lost through gaps around windows and doors. When I started looking into alternatives there didn't seem to be much that matched Great Stuff in effectiveness. The old school method was to jam fibreglass insulation in there which may slow a draft but isn't air tight and offers no insulation.
Modern alternatives tended to be non-expanding so they wouldn't provide a tight air seal or urethane or latex based which aren't as effective at controlling moisture. One alternative with a green twist was "Touch n Foam Max Fill", a "renewable resource" based expanding foam. Unfortunately though, the green version is not available in a "door and window" version.
So in the short term I am going to view it as a necessary evil. I will though convert to the Great Stuff pro series with the applicator gun. Bigger cans with control over the bead size should mean that I will have less overfill and generate a less waste from the aerosol cans.
But in the meant time I will keep searcher for something better. If anyone out there has found a greener solution, please let me know!
Friday, June 25, 2010
Life "Without" a Kitchen
As crazy as it sounds, we wanted to do most of the renovations ourselves. The reasons being cost and we wanted firsthand experience with a LEED renovation. But, between work and family time, we don't have a lot left over to devote to the renovation. We estimated it would take us 3.5 months to complete the first phase of the project... a long time to be without a kitchen! To add to the typical difficulties of living without a kitchen, we have multiple food allergies in our family... so eating out/ordering in is a limited option for us.
The solution? Convert the dining room into a make shift kitchen. We bought a temporary pantry to house food and dishes, moved the refrigerator and stove into the dining room, and made the dining room table into more of a work space/eating area. We also packed up any non essential kitchen appliances (the popcorn popper is the one that has been missed the most) and many of our dishes.
Not too shabby, right? But wait, there is something missing... the kitchen sink and dishwasher! Yikes!
Not to worry! Being avid campers, we pulled out our plastic camp sinks and presto, luxury camping for the whole summer :) Who could ask for more!?!
Even the kids are enjoying washing dishes by hand in the camp sinks! Let's see how long their/our enthusiasm lasts! 4 weeks down, hopefully no more that 10.5 to go!
Wednesday, June 23, 2010
How our Kitchen will be Green: Cabinets
The big concern with cabinets is VOCs or Volatile Organic Compounds. These are chemicals that release in gas form at room temperature. So essentially air pollution that can have an impact on the environment and your health. And unfortunately in a typical home renovation (or construction) you are going to introduce a lot of them into your home. They are traditionally in your paint, glues, sealant, cabinets, flooring, cabinets, etc. In cabinets, they are caused by the formaldehyde in the melamine or the plywood glue.
Apart from the VOC issue, the green factor is impacted by the material and its source. Solid wood cabinets are the best choice for the VOC side but they wouldn't be very environmentally friendly if the wood came from hacking down swathes of the Amazon. (Solid wood cabinets also tend to be out of most peoples price range).
The best way to avoid introducing VOCs into a new kitchen is to not buy new cabinets. Re-facing or re-finishing existing cabinets is the greenest option: no new materials, no new chemicals. Our existing cabinets were in decent shape but with reconfiguring our kitchen space they didn't fit. So... we started shopping. To be honest it was a brutal to start. The first couple places we went that specialized in "green" cabinets gave us rough quotes of $40 to $50k, which was light years out of our budget.
Luckily though, with some late night surfing Jody found AyA kitchens (http://www.ayakitchens.com). A couple visits and we were sold. The cabinets were attractive, affordable, and green:
- "EVO" particleboard box has no added formaldehyde and is made from 100% recycled content
- Wood doors are FSC certified (Forest Stewardship Council - which means how the wood was harvested was done so in a sustainable manner)
- All adhesives are also formaldehyde free
- Any plastics are lead free and non-VOC
- AyA also has a long list of green processes involved in their manufacture
Not only was the product green, but the beautiful kitchen in the pictures is the hard work of Tobi, AyA's designer/customer rep. We gave her dimensions and really rough guidelines of what we were after and loved what she came up with. So now we just need to wait 6-8 weeks for delivery.
LEED points: (MR2.2) A half point for "environmentally preferable" cabinets.
Friday, June 18, 2010
Our Kitchen Deconstruction
In changing our kitchen from this:
to this:
... you have to get rid of a lot of material. In a traditional demo, you go in with a sledgehammer knock everything down and ship it off to a landfill.
Actually to be fair, I imagine most people would have saved the cabinets. But that probably would have been the extent of it. Our deconstruction meant carefully taking everything apart. Drywall came off and was bagged for recycling. Existing insulation was was cut out of the framing for future re-use. Lumber was salvaged and all the nails pulled out.
To most people reading this, I imagine the idea of slowly prying off 1/2" round trim and pulling out all the finishing nails seems fairly crazy and two years ago (when we did our last reno) the idea never even occurred to me. But it is probably the same way everyone felt back in the 80's when people started suggesting we wash and sort our garbage. Since that time recycling has become second nature to most of us.
So why bother? As mentioned at the start we tore 1713lbs of material out of our kitchen. This is what made it to the landfill:
one 42 pound bag of garbage. So over 97% of the waste was diverted. Where did it end up?
827 lbs of drywall: to be recycled
20 lbs of insulation: to be reused
487 lbs of cabinets/counters: to be sold
22 lbs of metal corner bead: to be recycled
5 lbs of nails / screws: 20% reusable, 80% recycling
111 lbs of lumber: to be reused
137 lbs of plywood: to be reused / given away
54 lbs of trim: to be reused
10 lbs of electrical: aluminum wiring to be recycled, boxes and face plates re-used
40 lbs hood fan: to be sold
When it comes down to it, some of the above material will end up being waste. As an example some of the lumber will need to be trimmed because of damage but a huge chunk will have been diverted. Apart from generating less garbage there are some financial benefits to deconstruction as well: no dump fees and for every piece of material I reuse whether its a electrical outlet or a 2x4 I am saving cash.
The flip side; deconstruction takes twice as long as a demolition and is half as fun. So you need to evaluate your own project and patience to determine how much effort you are willing to invest.
In this post you'll notice there has been no reference to LEED points. I am disappointed to say that is because there are none. There is a prerequisite to document my diversion rate for demolition but points are only awarded for diverting construction waste (packing materials, drywall waste, etc.).
Monday, June 14, 2010
Size Matters
If you build a sprawling 8,000 square foot home it is literally going to have a bigger ecological footprint than your standard size house. The home is going to take more material to build, more energy to sustain and generate more waste when it is ultimately demolished. LEED accounts for this by adjusting your target number of points needed for certification .
Certified LEED (what we are shooting for) is normally 45 points. Build a bigger than average home and that number will be adjusted up. Likewise if you build a more compact home, your required points goes down.
Our home is a roughly 1400 square foot bungalow. When we first started consulting the adjustment table we were laughing. A 3 bedroom, 1425 sq.ft home is a 10 point reduction... it would knock off over 20% of the total points! Unfortunately that excitement was short lived. The calculation requires that you include all "conditioned" or heated living space. We have a mammoth basement which is heated and potentially livable (not currently finished).
Counting the basement doubles the size of our house to 2850 sq.ft. Assuming our basement project adds one bedroom then our new adjustment -1 point. Nothing spectacular but every bit counts.
For anyone interested in the nitty gritty details of the program the Rating System can be found on the LEED Canada for Homes page on the Canadian Green Building Council's website: http://www.cagbc.org/leed/systems/homes/index.php
And now back to work, we have been busy ripping out the kitchen...
Monday, May 31, 2010
Location, Location, Location
The idea behind this category is to encourage people to build at locations that minimize environmental impact and encourage a healthy lifestyle. If you choose to build your home in a swift fox breeding ground and need to helicopter in your groceries: you won't get any points. Incidentally you can still qualify for LEED; this is the only category with no prerequisites. I am guessing so that mountain top lodges in National Parks can still qualify.
We cleaned up in this category for two reasons:
#1 We're Renovating
- Our land was already developed so we are not consuming environmentally sensitive land: 2 points (LL2.1 - this is the category code for those of you following along at home with your own handy rating guide)
- We aren't causing any Urban Sprawl. We get 2 points for being bordered by existing developments on at least 75% of the property (LL3.2) and 1 point for being a previously developed lot ourselves (LL3.3)
- Infrastructure already exists so they don't need to run more sewers or power lines - 1 point (LL4.1)
#2 Where we bought
We had the luxury of when we were buying the house, we were buying it with the intention of trying to complete a LEED reno. So we were looking for the right kind of location. LEED encourages houses to be placed in locations where you have access to green space and don't need a car for your daily life. Unless you are buying a new place, not much you can control here as part of a reno project.
To see what points you would get just pull up Google Earth and draw a circle that is 800m away from your house. That's essentially the cutoff for what is considered a reasonable walk.
If a park 3/4 of an acre or bigger (think the size of a kid's baeeball diamond) is in your circle that's 1 point (LL6.1)
Now count how many services are in that range. The key here is you can't count more than two of the same type. So if you are by a strip mall consisting of 25 restaurants it only counts for two services. If you have 7 to 10 services that's one point, 11 to 13 is two points and 14 or more is three points (LL5.3)
Our count is:
• 1 movie theatre
• >2 Banks
• 2 Community or civic centres
• 2 Convenience stores
• 2 Daycare centres
• 0 Fire stations
• 0 Fitness centres or gyms
• 1 Laundry or dry cleaner
• 0 Libraries
• 2 Medical or dental offices
• 1 Pharmacy
• 0 Police stations
• 1 Post office
• 2 Places of worship
• >>>2 Restaurants (we are near that strip mall with 25 restaurants)
• 1 School
• 2 Supermarkets
• 2 other neighbourhood-serving retail
• 2 other office buildings or major employment centres
So we finish the count with 25! Comfortably putting us into the 3 point group.
If you have no services in your 800m circle it may not mean the end. You can count the number of times public transit stops within the circle instead. If there are 30, 60 or 125 buses per day than you can get the one, two or three points as well. You count the number of buses at each stop, so one bus stopping at 5 stops in your circle counts as 5 buses.
So just like that we have 10 points. 22% of the way to certification and we haven't even done anything yet!
Saturday, May 29, 2010
One Prereq Can Ruin Your Whole Day
Every reno project has its stumbling blocks and surprises. We should have expected that trying to do one that meets rigorous international standards might introduce a few more obstacles. Well we hit our first one and it literally weighs a ton and a half.
LEED has 19 prerequisites that you have to meet. You can pick and choose on the points side where you want to focus but the prerequisites are all mandatory. And they cover a wide range of topics: invasive plants, air filtration, heated garage, etc. So far we have met one of the requirements which was to have a a preliminary meeting. Essentially sit down with the LEED rep and discuss our project.
Where we have run into trouble is the one reno specific criteria. In order for a renovation to be considered for LEED you have to open the entire building envelope. Essentially all the insulation and vapour/air barrier needs to be inspected or upgraded. Makes sense because when it really comes down to energy efficiency the insulation is where it is at.
So I understand the requirement but when you have a 4' by 6' fireplace on the inside of a wall and a brick exterior it makes seeing that stretch of wall a pain in the @$$. And its non-negotiable....
So where does that leave us?
Option 1: take down the brick exterior wall... seems like a lot of work or cost
Option 2: take out the fireplace... ditto, although this option would also fix a another headache as a traditional wood fireplace is also a prereq no no. If we keep it we would need a new wood or gas insert. But then how would Santa get in?
Option 3: Expanding foam insulation. Not sure if this would satisfy the kind folks at LEED but as we are only talking about 41", we might be able to drill into the exposed wall studs on both sides and inject a closed cell insulation. This would upgrade the insulation and provide an air/vapour barrier.. but will it fulfill the requirement to "expose" the building envelope? We'll see what LEED says.
Only two weeks in and already stumbling.... this might make for an interesting couple of years.
Sunday, May 23, 2010
LEED: What and Why?
In a nutshell: LEED or "Leadership in Energy and Environmental Design" is a set of international guidelines for green or sustainable buildings. The program looks at 7 key areas:
- Location and Linkages - where is it built and its accessibility
- Sustainable Sites - how green is your yard?
- Water Efficiency - is your home a water hog?
- Energy and Atmosphere - how efficiently does it use energy?
- Material and Resources - use of green products and minimize waste
- Indoor Environmental Quality - minimize indoor pollutants
- Awareness and Education - inform the world
In each category you have to earn a certain amount of points and/or meet a certain number of prerequisites. This means your project needs to be balanced to some degree. You could have a "net zero" solar powered house but if you install a circa 1950s 30L per flush toilet you're outta luck.
The more points you get the higher your classification: "Certified", "Silver", "Gold, or "Platinum". We are planning on Certified with a possible stretch to Silver.
So why bother?
So first off why bother with "green" renos? I think we'll answer that question in detail as we go along but basically it is important to us. If efficiency and reducing your footprint are not your cup of tea then LEED is not for you.
But why bother with LEED? Why not just do green renos and forget the hassle and cost of getting certified? The various LEED websites offer a long laundry list of benefits, for us it came down to a handful of reasons mainly associated with our last reno project. When we were in Winnipeg we completed significant renovations, most with a "eco" flavour: cork floors, recycled paint, extra insulation, etc. but looking back there was a lot we could have done better:
Keeps us Honest
In every renovation, there are trade-offs (cost vs. quality as an example). By certifying the project we need to ensure that none of the trade-offs that we make
compromise on the environmental footprint of our project. And not just on the product but the process.
As an example below is a picture of our Winnipeg basement after the demolition phase.
Now I won't lie. Spending two days with a sledge hammer destroying a place was a lot of fun. At the end the kind folks from 1-800-Got-Junk whisked away our debris and I started building. This time around I have to log construction debris and how much is going to a land fill. So instead of demolition it becomes deconstruction. Wood is salvaged (already used all second material for my work bench) and recycled. Looking back at that picture and thinking how much material went straight to the dump: it pisses me off. Not just from the green side of things but I threw out good quality lumber and went out a probably paid money for a poorer quality product.
Guidance
Sometimes making the right environmental choices isn't that clear cut. For example I wouldn't have thought that installing a sprinkler system was very eco-friendly. But if you have a traditional lawn a sprinkler system that applies the optimal water at the optimal time will definitely reduce water usage over dragging the sprinkler out on a Sunday afternoon.
Having guidelines to follow and people to support you through the process will help both of us become more knowledgeable about green building.
Resale
I can't say whether or not a LEED home is worth more. I am sure there are studies out there that say it is. But when this building changes hands I want the next occupants to know that they have a green home. When we sold our Winnipeg home, the prospective owners may have heard about some of the improvements... do they still remember? Will the next owners know that the insulation was upgraded? I want future owners of this house to know and hopefully care that it meets higher standards.
Being a Leader
I care about the environment and it is not often that I really get to go above and beyond. LEED certification for existing homes is fairly new and so making it a DIY project while you are living in the home is pretty rare. It is nice to feel like you are breaking new ground and I hope others can learn from us.
Welcome to the Blog
If you have stumbled across this blog, there is a good chance you are interested in home renovations, energy efficiency, or sustainable development. We know we are. (Actually in all honesty, odds are if you are reading this it is because you are friends or family trying to figure out whether or not we are crazy.)
Either way, we have just started knocking out drywall in what will ultimately be an entire Gut - Rehab renovation - to LEED standards - while we live in the house - doing most of the work ourselves - in our spare time. Okay, now I am trying to figure out whether or not we are crazy.
Whether we pull it off or not, the blog will document our attempt and hopefully inspire others or at least help them learn from our mistakes.
Wish us luck!