Thursday, February 3, 2011

Is a LEED renovation expensive?

About a week or so ago, I had a friend finally ask the question a lot of people have probably had in regards to this reno:  Is it expensive?  And is it worth it?

I gave him a vague nebulous answer which I doubt actually satisfied any of his curiosity.  I wasn't trying to be evasive, it is just a very hard question to answer. The reason being is that the costs come from a lot of different sources and some of the benefits are hard to quantify.

Comparing this renovation project to a traditional reno the bulk of the additional costs come from three areas:

Material Costs

LEED provides points for using environmentally friendly material.  Products either containing no VOCs, manufactured out of greener material or greener practices.  It is important to note that these are almost exclusively points and not pre-requsites.  Meaning you can choose these materials to earn points towards certification but you are not required to.

Efficiency Upgrades

A big part of LEED, is having an efficient home.  Better insulation, better dealing, better heating, etc.  Which obviously all costs money.  This category can provide 38 LEED points, almost enough for your certification.  It also has a minimum requirement, your home needs to have an ERS or Energuide rating of at least 76 (although that will probably go up in the next update of the rating system).  Efficiency upgrades though are the easiest to quantify financial benefits as they reduce heating / cooling costs.

Scope of Project

Realistically, this is where our costs are driven up the most.  LEED for homes was developed for new homes or Gut/Rehab renovations where the entire house is stripped down and re-built.  To try and do this work as a DIY home renovation project is a challenge.  Worked great in the kitchen because our plan there involved knocking out walls and removing all the counters and cabinets.  But we will have to go into the kids rooms and strip down the ceiling and exterior walls to re-insulate in there too. It has value in doing but honestly wouldn't happen if it wasn't for LEED.  Other examples:

- Fireplace upgrade
- Water heater upgrade
- Landscaping
- Garage ventilation
- Radon testing
- Deconstruction / Construction waste management

Some of those cost money, some cost time but they all increase the scope and ultimately the cost of the project.

I will save the other two of the above for future posts, but will dig in a little further in this one on material costs.

Do green materials cost more? Depends on the baseline.  If we look at the scale between the cheapest version available of a product and the most expensive, the green options usually fall squarely in the middle.   As examples my last three purchases were:

3" Window mouldings

Cheapest available:  $0.17 / foot, simple generic profile, mdf
Most expensive:  $4 / foot, solid pine
Green option purchased:  Spero eco-wise mouldings, recycled wood fibre, with no urea-formaldehyde $0.85/ foot

Benefits:  reduced environmental impact, improved air quality, healthier home

Kitchen Countertop

Cheapest available:  Ikea laminated particleboard countertop, $5 / sq ft
Most expensive: Granite countertop, $120 / sq foot  (although some stainless steel products can go up to $200 / sq foot)
Green option purchased:  Zodiaq recycled glass countertop, <$100 / sq ft

Benefits: reduced environmental impact, appearance, low maintenance


Only option at Rona:  FSC select lumber

This made it easier to comply with LEED criteria when the store I regularly shop at only had FSC (Sustainable managed forestry practices) 2 x 4s available

So will a green renovation be the cheapest renovation option available: no.  The most expensive: probably not.  I would say it falls in the mid-range to upper mid-range.  The return on investment:  good quality products with a high end appearance that make your home and the environment healthier.

1 comment:

  1. Thank you for sharing the information.

    Renovating the house needs lot of things and renovating the house considering the feature of leed will help a lot not only in protecting the environment but, it will also help to improve the health of the occupants living in the house or building.

    There are numerous companies who are providing the service of leed green project and are also providing different green educational videos which is helping in the construction of green building and while surfing on internet, I came across a site named as Logical Green Institute who is providing LEED innovation design video for the promotion of green project attributes and also to protect the environment of the earth.