Tag: Matthew Cutler-Welsh

  • HPH045 : Why Are More People Not Retrofitting Their Homes?

    Upgrading your property so that it is more comfortable and costs less to run makes sense. If we’re serious about tackling climate change then retrofitting has to be undertaken on a huge scale. So if it looks good on paper, why are very few people doing it?

    In this discussion (which was one of our Google+ Hangouts) we consider some of the barriers that may be putting people off.

     

    The Panel

    Managing Editor of TreeHugger Lloyd Alter (who was our guest in episode 35)

    Host of the Home Style Green podcast Matthew Cutler-Welsh (who was our guest in episode 21)

    Writer and blogger Roger Hunt (who was our guest in episode 10)

     

    Large Houses Could be Sub-Divided

    Lloyd Alter explains that he’s in the middle of a retrofit where he’s reducing the energy use per capita in the house.

    By duplexing his home, instead of just two people living in the six bedroom property there will be six people.

    Taking this approach means he doesn’t have to ruin the character of his 100 year old house by changing windows and adding insulation. The rent from these units will also fund the alterations.

     

    When Homeowners Have Money, They Use it for Other Things

    Matthew Cutler-Welsh shares research that of the 1.6 million houses in New Zealand (where he lives), around 1 million are below World Health Organisation requirements for maintaining a comfortable temperature. So there is definitely a need to retrofit.

    Although many people typically spend between $3000 and $5000 on their homes each year, that money tends to go on new decks or redecorating bathrooms etc.

    Homeowners like to see where their money goes.

    Matthew says: “Caulking, insulation, draught-proofing – can you think of anything less sexy to buy!”

    Home decorating mature man painting wall roller 

    Poorly Executed Retrofits Could Do More Harm than Good

    Roger Hunt acknowledges that as Britain has some of the oldest housing stock in the world there is definitely the need to upgrade it.

    However, with a lot of old buildings comes the responsibility to care for them in a special way.

    With many professionals still learning about the most effective ways to carry out these upgrades he’s concerned that some of these measures (such as insulation solutions) may not be appropriate in the long term and ultimately will have to be ripped out.

    This could be another reason why people are reluctant to carry out an extensive retrofit because they are not confident that it is the best thing to do.

     

    Payback Periods Are Often Too Long

    There are many examples of where replacing windows in older properties is not only inappropriate and devalues a property but there are very long payback times as well. Roger has seen payback times of 97 years quoted for some replacement windows!

    Losing original wooden windows to landfill is also equivalent to throwing out an antique chair.

     

    There is a Lack of Good Information

    People don’t have the right information, partly because the construction and renovation industries are built around the idea of selling people stuff.

    Lloyd shares a resource from Minnesota Power that sets up a hierarchy of things that you could do. If people really care about saving energy then a lot of the best things cost very little money.

    Proper thermostats, caulking, weather-stripping, sealing can make a huge difference. Instead people invest in granite counters or solar panels on the roof because these measures can been seen!

    Information

     

    People Feel They Have to Do One Big Retrofit

    Roger suggests that people don’t have to do this all at once. They need to work out their retrofit roadmap and plan those stages, even if it’s over a period of 10 years.

    The important thing is that all the phases work cohesively.

     

    Awareness is Increasing Even if Mass Action is Not

    Roger talks about one of the positive aspects of the UK’s Green Deal is that it has got professionals thinking more about solutions.

    Matthew also says that New Zealand’s equivalent programme has educated the general public in terms of what R-values are and so on.

     

    More People Will Retrofit as Energy Prices Increase

    In Canada natural gas prices have just doubled, so the volatility of energy prices is a trigger for homeowners to explore how they can reduce their bills.

    Lloyd says: “The problem with energy in North America is it’s just been too cheap. It doesn’t put enough pressure on them.”

    A large proportion of people in the US and Canada are over-housed which is leading to a mass down-sizing.

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    Energy Efficiency is Still Not Valued Enough 

    Despite Energy Performance Certificates being a requirement in the UK, they do not drive the market (as might be the case with a car’s performance).

    Roger feels that as more people slip into fuel poverty, day-to-day running costs will start to register when people buy houses.

     

    Getting Building Permits for Small Renovations is Increasingly Difficult

    Lloyd says that over the years it has become harder and harder to carry out small renovations.

    He gives an example of how despite having a very competent green carpenter there was an excessive amount of paperwork to get things moving. Having to deal with this level of bureaucracy may deter some people.

     

    More Houses Need to be Seen by Trained Professionals

    Matthew stresses that in order to create better buildings, more trained professionals need to be involved.

     

    Watch the Google+ Hangout

    Do you fancy getting involved in a future discussion? Well, check out the schedule.

    Transcript

    Download a transcript of the debate.

     

    Our Question for the Comments Section

    What is stopping you from retrofitting your home?

     

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  • HPH021 : Creating Healthier Homes For New Zealand – with Matthew Cutler-Welsh from Home Style Green

    HPH021 : Creating Healthier Homes For New Zealand – with Matthew Cutler-Welsh from Home Style Green

    Matthew Cutler-Welsh from Home Style Green explains some of the challenges of creating sustainable urban systems. He also shares his goals as a podcaster, including championing healthier, better homes for New Zealand.
    matthew-cutler-welsh-profile

     

    Interview with Matthew Cutler-Welsh

    Matthew trained as an engineer before working for the New Zealand Green Building Council. His passion for building houses that are beneficial to the occupants as well as the planet even stretches outside work, where he has set up a podcast called Home Style Green.

     

    Urban Areas Have The Biggest Impact on Our Environment

    Matthew believes that sustainable urban systems are of great importance. This is because towns and cities are where most people live, consume resources and create waste. So ironically, it is these urban areas that actually have the greatest effect on our natural environment.

     

    We All Have a Role to Play in Improving The Situation

    Although Matthew realises the size of the problem can be overwhelming, he thinks we can all influence the way we live. For Matthew, getting involved with how we design and build our houses is something that’s a lot more manageable to focus on.

     

    Home Style Green is About Sharing Knowledge

    Home Style Green aims to be a resource for anyone wanting to build a better home, who is not satisfied with the status quo and the way things are being done. The podcast features various interviews with professionals in order to share knowledge on how to achieve higher standards with housing.

     

    Homestar is a New Zealand Sustainability Tool

    Matthew uses Homestar in his work at the New Zealand Green Building Council. It is a sustainability tool that splits into 6 categories and considers things like energy use, water use, the comfort of the house, wastage (during construction and on an ongoing basis), permeability of the site and where the house is located in the context of the local amenities.

    matthew-cutler-welsh-gives-award

    Matthew presents the High Performance Home in Christchurch with their 8 Homestar certificate

    House Affordability is a Key Issue Across The World

    Matthew explains that two big issues in New Zealand are availability and affordability. However, he’s also noticing that affordability is becoming a bigger issue across the world. This is often misconstrued to mean just the purchase price of a house but over the lifetime of that building, the largest costs tend to be the running costs. Matthew believes this fact does not even register with the mainstream media.

     

    Expats Are Having a Positive Impact on New Zealand Housing

    While Matthew describes a lot of New Zealand’s housing stock as ‘appalling’, he says that people moving to New Zealand from overseas have a positive influence. They are often shocked by the condition of some of the houses but with the experience of better housing want to make a difference.

     

    Attitudes in New Zealand Unwittingly Maintain Low Standards

    Most people who have grown up in a typical New Zealand house unwittingly contribute to the preservation of these standards. Instead of demanding better, the culture is one of toughening up and accepting the way buildings are constructed.

    Auckland

     

    The Building Code is Still Below Par

    In New Zealand, insulation was not a requirement of the building code until 1978. Even in 2004, the level of insulation required was not good. Even today, Matthew gives an example of a building in Christchurch that is less than two years old and has a totally uninsulated concrete floor slab, yet it is code compliant. Matthew’s opinion is that even the current code is below par.

     

    Change is Driven By Market Forces Rather Than a Clear Goal

    Matthew sees Britain’s goals of achieving carbon neutrality in buildings by 2016 as a good objective that is driving things in the right direction. He explains that, as far as he is aware, there is no such visionary, over-arching goal in New Zealand. Advances are reliant on industry as better products become available and are adopted. Matthew describes this as ‘a risky business’.

     

    60-70% of New Zealand’s Electricity Comes From Hydro Electric Power

    Although New Zealand pulled out of the Kyoto Protocol, part of the reason was that there’s not a real connection between carbon, and building and energy use because 60-70% of the electricity production is from hydro electric power. This means New Zealand doesn’t have the same level of emissions issues from the energy sector as other parts of the world. However a lot of New Zealand’s emissions come from the agricultural sector.

     

    Recent Droughts on The North Island Make Climate Change More Real

    Matthew believes that a lot of people are not switched on to the realities of climate change, but as agriculture is such an important part of the New Zealand economy, with unusual weather patterns and droughts, questions are starting to be asked.

    Matthew-and-kids

    Matt and his three kids

    Families Are Likely to Come Before The Environment

    With people struggling to stay warm and pay utility bills, the primary issue is always likely to be looking after the family. Matthew is an advocate of sustainability by stealth, whereby you address the issues that people are facing and look at the connection with those and some of the environmental goals that you want to achieve. For example, improving the insulation of a home might reduce power bills which will also help the family that lives there.

     

    New Zealand Has The Second Highest Asthma Rate in The World

    Matthew highlights the need to create healthier homes because New Zealand has the second highest asthma rate in the whole world. It is also the leading cause of hospitalisation for children, with 1 in 4 children having relatively severe asthma. Matthew describes these statistics as ‘scary’ for a so-called developed country.

     

    Houses Affect Our Health

    As we spend so much time in houses, they do have an impact on our health and well being. Cold and damp environments are not conducive to a good quality of life. Matthew says the mortality rate in New Zealand increases rapidly during wintertime. Once people have more experience of better homes, they are more likely to demand them.

     

    Matthew’s Recommended Resources

    • ECOBOB – Find information on green homes, sustainable design and eco living in New Zealand.
    • The Sustainable House (affiliate link) by Michael Mobbs – this is a book that inspired Matthew when he was at school. Michael Mobbs converted a terraced house in Sydney into a sustainable home, which was particularly interesting as Michael’s background was in law rather than construction.

    Sustainable-House-book

     

    Find out more about Matthew Cutler-Welsh

     

    Transcript

    Download a transcript of the interview with Matthew Cutler-Welsh.

     

    Check Out Our Brand New Videos

    We’ve teamed up with Martin Evans from the Malthouse Consultancy (who was our guest in episode 2) to bring you a case study of an energy efficient country house. Martin explains the key considerations and how it was built.

    Check out the House Planning Help YouTube Channel to view two more videos with Martin Evans. He takes us on a tour of his plant room and outlines the factors that will drive down efficiency of a ground source heat pump. Plus, what is the order of priorities if you’re looking to create an energy efficient home?

    Find out more about Martin Evans and the Malthouse Consultancy.

     

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