Irish Green Building Council

Green building policy and training in Ireland

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Home Green Home – 10 Questions to ask about your New Home

19th September 2018 by admin

Over 180 new housing schemes will be launched in Ireland this year. Are you on the hunt for a new house to buy or rent? Are you interested in having low running costs, a healthy home and a livable planet for the future, but don’t know where to start?

Check-out our 10 questions to ask about your new home.

  1. Is it an nZEB Home?

The nearly Zero Energy Building (nZEB) standard comes into force in Ireland in 2019 for any homes granted planning permission after 1st April 2019, however the better builders will be ahead of the curve and may already be meeting the standard. nZEB homes are cheaper to run and should be more comfortable.

What should I ask my home builder? 

Does the house meet the nZEB standard? Or, is it just sticking to old-fashioned building regulations?

  1. Can I walk or cycle to shops, school or work?

One of the largest costs of living is car ownership. Needing a car or even two just to do basic things is like having another mortgage. Living in a walkable area makes it easier to integrate exercise into your day. Why waste time and money on gym membership, when a well-located home can allow you to integrate exercise into your lifestyle? That’s good for you, the planet and your wallet.

What can I do?

Find out how walkable the area is simply by inputting your address into walkscore.

  1. Will I be a sponge?

There was a hose pipe ban in Dublin over the summer and long dry spells are likely to increase over the coming years due to climate change. It also takes lots of energy to heat water so the more hot water used the higher your bill. But, installing water efficient taps and showers is easy, reduces your bills and saves water.

What should I ask my home builder?

Did they install European Water label A rated water efficient taps and showers?

  1. Can I breathe?

We spend 92% of our time indoors. Of all pollution, household air has the most significant impact to our health.  Slots in the window and holes in the wall with hit and miss grills are still permitted under Irish building regulations to meet basic ventilation requirements. However, they don’t guarantee good air quality especially if you close them to stop draughts in winter. It’s the 21st century, you deserve better! All new homes should have a properly designed and tested ventilation system.

What should I ask my home builder?

Is there a properly designed and tested ventilation system installed?

  1. Did you build it right?

The air infiltration test is one of the best indicators of build quality of your home. Whilst building regulations allow up to 7, a good quality home should be under 3*.

What should I ask my home builder?

Can I see the air infiltration test results? Remember, good practice is under 3. Best practice is under 1. Also remember if it is under 3 for an nZEB home it must have a ventilation system.

*The full term is 3m³/hr/m²@50Pa and is measured on completion by pressurizing the home with a special fan and measuring the level of infiltration.

  1. What’s the Daylight factor?

It’s not just Dermot Bannon who should be obsessed with daylight. High levels of natural daylight make us feel better, improve our sleep patterns and make us more alert and productive. So, go on!… Frighten the daylights out of your home builder.

What should I ask my home builder?

Did you do a daylight calculation to make sure all the rooms have adequate light?

  1. Where’s the timber from?

Illegally sourced timber is a leading cause of deforestation. It leads to destruction of habitats and endanger species around the world. Local European timbers are usually fine. But where is that exotic looking hardwood floor from? Don’t steal the Orangutan’s home to build yours.

What should I ask my home builder?

Is the timber FSC or PEFC certified? Can you show it comes from a sustainable source?

  1. Don’t sprawl! They need space too.

Global wildlife populations have plunged over the last decades. In Ireland, the loss of green fields has resulted in a loss of habitat for many species, threatening bees and endangered species such as the corncrake.  Living space is good for us. But, we need to use land responsibly, by better design of our homes and communities. Walkable neighborhoods are not only good for wildlife, they are also better for our health.

What should I ask my home builder?

What’s the density of homes per hectare? Below 35… not so good! Above 50… Much better!

And remember, high density does not mean high rise or poor quality of life. The number for Stoneybatter, one of Dublin’s hippest 2-storey neighborhoods is close to 100.

  1. What’s the footprint?

Checking the BER is great, but that’s just half the story! For homes the carbon emissions from manufacturing the materials, transporting material and building can be as much as the emissions from the heating and electricity to run the home for 50 years. Many manufacturers now provide the carbon footprint of their products allowing builders to measure and reduce the carbon footprint of houses they build.

What should I ask my home builder?

Did they measure and reduce the carbon footprint of building the homes?

  1. Will it flood?

Great it’s not in a flood risk zone! But, can my home cause flooding to my neighbors? Large areas of impermeable surfaces such as paving and roofs plus poorly designed drainage systems can lead to flooding nearby. Materials that allow infiltration of water into the soil and good drainage systems prevent this happening.

What should I ask my home builder?

Is it in a flood risk area? Did you design it to minimise risk of flooding elsewhere?

Want to find more technical information about the different topics above? Check out our blogs on the nearly Zero Energy Building Standard, ventilation and air tightness and water efficiency.  For even more technical details, download our Home Performance Index manual.

The Home Performance Index is Ireland’s first national certification for quality and sustainability in new residential developments. It was developed by the Irish Green Building, in conjunction with its members, and with support of the EPA.

Filed Under: news, latest news Tagged With: World Green Building Week, Home Performance Index, Residential

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IGBC

The Irish Green Building Council is a not for profit company limited by guarantee registered in Ireland. Registered Number: 492948.
Registered Office: 19 Mountjoy Square East, Dublin 1. Registered Charity Number (RCN): 20155568.

Director(s): Refer to About Us pages.

Phone: (01) 6815862 & (01) 6815843 Email: [email protected]

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