Hiberna Ltd

Hiberna Ltd Hiberna Ltd creates homes to be proud of for generations to come. Comfortable, beautiful, healthy efficient buildings that are gentle on the environment.

What are the lifecycle impacts of buildings in New Zealand? How do our buildings perform and can we do better? What targ...
27/10/2020

What are the lifecycle impacts of buildings in New Zealand? How do our buildings perform and can we do better? What targets and what building performance measurements are needed for New Zealand to reach a net zero ready building code, leading to carbon zero building? Whether you’re in the industry or thinking of building, these are some of the big questions we need to confront in the next few years.

Hosted by the members of the Wao Better Building action group. This group has been meeting for the last two years to shift towards building better, increasing awareness of mental health in the industry and shifting it towards a circular economic model. Come meet the crew and get inspired with some of our expert speakers.

Event Details
Date & Time: Wednesday 28th October 2020, 5pm – 8.30pm

Location: Rippon Hall, Wānaka

Price: $25 + Eventbrite fees

Speakers:

Amy Tankard – CEO, Passive Passive House Institute New Zealand (PHINZ)
Andrew Eagles – CEO, New Zealand Green Building Council
Anne Salmond – Salmond Architecture
Denise Martin – Principle Analyst, Oculus Limited

https://resetsummit2020.com/2020/09/18/building-better/

ENERGY EFFICIENCY IN CONSTRUCTION GET TICKETS What is the lifetime expectancy of buildings in New Zealand? How do our buildings perform and can we do better? What targets and what building performa…

Latest from Hawea Grove
23/10/2020

Latest from Hawea Grove

Visit the post for more.

Consumers and industry were surveyed by BRANZ to find how much people want a well-performing home, with the findings pre...
13/09/2020

Consumers and industry were surveyed by BRANZ to find how much people want a well-performing home, with the findings preceding BRANZ work into developing the type of energy performance certificate typically used overseas. Read about the results here: http://www.buildmagazine.org.nz/articles/show/do-we-value-homes-that-perform?mc_cid=76c99d6212&mc_eid=52c14d277b

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Everyone knows the story of the Three Little Pigs and their tragic struggle with the Big Bad Wolf but most people don’t ...
10/09/2020

Everyone knows the story of the Three Little Pigs and their tragic struggle with the Big Bad Wolf but most people don’t know what happened next.

Edmund Little, the third pig little pig, was the one who built the brick house that the wolf couldn’t blow down and became a local hero. Due to the success of his wolf-proof house, everyone in his town wanted a brick house, and so he opened a company called “Mr. Little’s Brick Home Building.”

Alice, the 4th Little Pig
To build so many brick houses, they needed lots of bricks so they opened a big brick factory that made hundreds of brick every day. Finding clay to make the raw bricks was easy — it was almost everywhere– but they had to chop down a lot of trees to heat the kilns to cook the bricks. So they also starting a logging company to chop down trees to burn in the factory. Everyone was busy and happy chopping, burning, and building with brick.

Eventually, there were lots of brick houses and everyone felt very safe. Even though they felt happy and secure in their houses, they noticed that the world outside of their houses didn’t seem quite as nice as is used to be: the streams were dirty, the air seemed thicker and grayer than they remembered, and there weren’t as many trees as there used to be, but they told themselves that it was okay because everyone had a nice brick house.

Edmund had a daughter named Alice. Alice’s family’s brick house was the finest in the town, extremely wolf-proof and handsome. It was Alice’s job to bring in the firewood for the house and she noticed that it took a lot of wood to warm her house in the winter and that it was also uncomfortably hot in the summer. If the air outside was damp then the house felt damp and if the air was dry then the house felt dry.

When she got old enough to think about building her own house she wondered how to make it better. Maybe if it had more fireplaces to keep her warmer in the winter and a fan in every room to cool her down in the summer… Maybe she could install a network of tubes to move air around and make it drier or damper as needed… Or maybe there was a better way to build a house than to build it with brick? She asked everyone she knew if there were any other ways to build but was told, “Brick is the best way, that is how it is done.”

But she was a stubborn and independent piggy and she began to try to invent a better way of building, one that the wolves still couldn’t blow down but that worked a little better than brick and didn’t involve quite so much chopping and burning. She saw that the local farmer had lots of bales of straw left over from growing wheat, and imagined what fun it would be to just stack up all those bales like big, fuzzy blocks and put a roof on and have a house! She told her father her idea.

“You know what happened to your uncle when he built with straw,” he said gravely, “The wolf blew his house right down.”

“This is different!” she insisted, “These are big, solid, heavy blocks, not just handfuls of straw. It will be much stronger and safer than what he built.”

“Ok, if you say so, but why would you want to do something silly like that when you could have a fine brick house someday?” he asked.

Alice was not convinced. She asked the farmer if he needed all those bales and he said he would be more than happy to give her some because there wasn’t much he could do with them. He said that sometimes he had to burn the extra straw to get rid of it to make room for the next crop, which he didn’t like to do because it made the air thick and black for days.

The Sturtz Ranch, built in 1905
Alice did some research and found that she was not the first to think about building with bales. When European settlers arrived on the plains of Nebraska, they found very few trees — or even rocks — to build with but they did have fancy new horse-powered baling machines and they did have a lot of grass, so they made shelters out of bales of grass. These buildings were meant to be temporary, just to get them through the harsh winter, but some of them were so stout and cozy that they became permanent. She was amazed to find that some of these buildings had survived for over a hundred years and were still standing!

The Pilgrim Holiness Church, built in 1928
While doing this research, she heard about a few modern pioneers who had been experimenting with building with bales. So she visited them. She stayed in a tiny house built with straw bales that other past visitors had helped to build and fell in love with the not-quite-flat, not-quite-square quiet coziness of it. She stayed on and helped them build more buildings and, in return, they were generous with their knowledge and she learned a great deal. She learned that building a strawbale house was not quite as simple as just stacking up the bales: that it needs a solid foundation in the ground, a nice wide roof, a thick layer of plaster to give it good pair of boots, a good hat, and a good coat. She also realized that she needed to know enough about all of the other systems — like plumbing and electricity– that go into building any house.

She came back to her hometown full of inspiration and confidence. She bought a little piece of land near her father’s house and told him she planned to build her own strawbale house. He smiled and wished her luck and then quietly began to draw up plans for a nice brick house to build for her when she gave up on this silly straw idea.

At first, Alice would go to her piece of land and just sit and look. She watched how the sun and shade moved across the land and noticed where the wind came from. When she knew her land, she planned a house that fit with the sun and the wind and the land and then she began to build. When the word got out about her project, the neighbors began to drop by with questions.

“My horses love to eat hay. Won’t the horses and goats try to eat your straw house?” one neighbor asked.

“That’s the difference between hay and straw: hay still has seeds to eat but straw is just the stem of the plant with all the food removed. There will be nothing for them to eat in my walls,” Alice said as she began to dig for the foundation.

“What if the wolf tries to burn it down when he can’t blow it down?” another neighbor asked.

“Once I have the plaster on, I’ll be safe. The plaster doesn’t let the air or the fire get to the bales, which makes the house very fire safe,” she replied, as she built the sturdy wood frame for her house. “And even if the fire somehow got through the plaster, the bales are dense like a thick book and do not burn well. I’d have time to pack my bags while he tried to get the house to burn.”

“It’s just straw, won’t it rot and fall apart like the straw bale I left in my garden last year?” asked a friend.

“Almost anything will rot if you don’t protect it. Wood will rot if you leave it out in the garden. I will give my house a good roof with wide overhangs and a thick coat of plaster and then it will not rot,” she answered while framing the roof. “In fact, the walls of my house will breathe moisture in and out naturally and won’t ever grow mold.”

“Won’t mice crawl into your walls to make nests like they do in the stacks of bales in my barn?” asked the farmer.

“They are such nice, dense bales you made and I am stacking them so tightly together that there won’t be any space for a mouse’s nest between them,” she said while she worked on her roof. “When they can’t get into my solid walls, they will give up and go back to living in your barn.”

When she had finished building the sturdy foundation and wood frame and had finished the roof so she would have a dry place to work, she went out to the farm and chose the farmer’s nicest, driest bales.

She cut the bales carefully to fit snugly around the wood frame of the house and stacked them in the same pattern as bricks. She cut channels into the straw and hired an electrician to run the electrical wires in the channels. She filled the channels and any small holes with cob, a mix made of the clay she found while digging the foundation and straw leftover from cutting bales. Then she mixed up a big batch of clay plaster and plastered the bale walls inside and out. It was hard work but she loved the smell of the straw and the feel of the clay.

The house she made was not the biggest or the fanciest but it was nice. It was warm in the winter and cool in the summer. In the winter, the low sun ducked down to kiss her windows and warm the floor and walls of the house. When she built a small fire in her fireplace, it quickly warmed the whole house and the thick, snug walls held in the precious heat.

In summer, she could open her windows and collect the cool evening breeze, then close the windows and keep that coolness inside through the next day. The hot, high summer sun couldn’t reach under the wide roof overhangs, leaving her house in the cool shade.

The clay plaster on the walls seemed almost magical: it breathed in extra moisture, making the humid days less humid and exhaled the moisture back out on dry winter days. She never saw droplets of moisture on the inside of her windows in the winter as she had in the brick house where she grew up. She loved her quiet, not-quite-flat, not-quite-square strawbale house and also loved how little chopping and burning had gone into making it.

One day a wolf came to town. The town hadn’t seen wolves in years because all of the houses were brick and the wolves knew they couldn’t blow them down, but this wolf had heard that there was a new house that wasn’t brick and he thought he might have a chance.

He approached Alice’s house and yelled, “Little pig, little pig, let me in!” Nothing happened. He yelled louder, “I’ll huff and I’ll puff and I’ll blow your house down!”

An upstairs window opened and Alice leaned out. “Oh, I’m sorry, I couldn’t really hear you inside my quiet strawbale house. What did you say?”

Angry and a little self-conscious, the wolf shouted “You know the drill! Let me in or I’ll wreck your nice house!”

“No,” she said and shut the window.

So the wolf took a huge breath and blew as hard as he could, but nothing happened. Then he backed up, ran as fast as he could and slammed into the wall. He bounced off with a bone-shaking thud but the wall was fine. By this time, all of the neighbors were watching from their windows, concerned about Alice in her strawbale house. The wolf got mad and decided to burn the house down. He gathered some sticks and paper and lit a fire right next to the wall. The fire sent black smoke up while the sticks burned and then it just went out. Other than getting a little bit of black soot on it, the wall was fine. Discouraged and embarrassed, the wolf gave up. “That house is just as strong as a brick house,” he muttered as he walked away.

That evening, the town had a huge feast to celebrate another wolf defeat and Alice got her picture in the local paper along with an article about her strawbale house.

One by one, her neighbors began to see what Alice loved about her house and started to wonder if someday they might be able to have a strawbale house of their own instead of a too-hot, too-cold, dead-flat, dead-square brick house. Eventually, Alice’s father started to get requests to build strawbale houses and asked her if she would help his company learn. She happily agreed but she did have one suggestion: “How about we rename the company Alice & Father Home Builders?” she said with a twinkle in her eye. Her father met her halfway and “Little Family Home Builders” began to build lovely strawbale homes for everyone who wanted one.

With less demand for brick, the brick factory started making solar panels as well as bricks and the logging company could slow down and plant as many trees as they cut down. Slowly, the streams and the air cleared up, the forests grew back, and the world became as nice as it used to be. And the wolves, who realized they’d never be able to catch the pigs again, learned to like tofu bacon instead.

https://simpleconstruct.net/straw-bale/the-4th-little-pig/

If the idea of building a strawbale house makes you think of the Three Little Pigs, you might want to read the next chapter: Everyone knows the story of the Three Little Pigs and their tragic struggle with the Big Bad Wolf but most people don’t know what happened next. Edmund Little, the third pig...

https://youtu.be/P_YbbtM5yTw Another great episode from The Hawea Grove
06/09/2020

https://youtu.be/P_YbbtM5yTw Another great episode from The Hawea Grove

In the latest episode of our eco building series, we explore how people can plan ahead for energy efficiency. We take a look at window placement, thermal mas...

New Episode from Hawea Grove on construction waste:
18/08/2020

New Episode from Hawea Grove on construction waste:

Visit the post for more.

We've just received the amazing photos from Alpine Image Co of our strawbale Passive House and we are so stoked! They'll...
08/07/2020

We've just received the amazing photos from Alpine Image Co of our strawbale Passive House and we are so stoked! They'll go on the website soon but here's a sneak preview of just a few of them...

Who's seen this? https://www.mbie.govt.nz/dmsdocument/11522-building-for-climate-change    "At the heart of the work to ...
07/07/2020

Who's seen this? https://www.mbie.govt.nz/dmsdocument/11522-building-for-climate-change
"At the heart of the work to create lasting change will be two frameworks that will work together to reduce emissions:
› one focusing on operational efficiency of buildings (using less renewable and nonrenewable energy, using less water and improving the air quality and temperature)
› one to reduce the amount of greenhouse gas emissions generated by building materials, construction processes and disposal of materials (known as whole of life embodied carbon). "

"Future state: What will it look like in 2050

New Zealand’s buildings are using as little energy and water as possible.

They are warmer, drier and better ventilated, and provide a healthier place for us all to work and live.

The wellbeing of New Zealanders has improved, they’re leading healthier lives, and respiratory illnesses from cold and damp houses is uncommon.

People also have more money in their pockets due to lower energy bills.

Our infrastructure finds it easier to respond to demand for water, due to our lower use. This means we cope better with water shortages than we ever have before. The efficiencies from the Sector have made it easier for the grid to become more renewable meaning less emissions for the energy we do use.

Energy Efficiency and carbon cost are core considerations for the Sector and designs now meet an emissions budget as well as other regulatory requirements.

Reusing buildings and recycling materials is an established part of a Sector that is well on the way to having a fully-fledged circular economy well supported by local supply chains."

Listen to the fabulous Philippa Howden-Chapman on RNZ talking about the Healthy Homes initiative and the effect of cold ...
02/07/2020

Listen to the fabulous Philippa Howden-Chapman on RNZ talking about the Healthy Homes initiative and the effect of cold damp homes on tamariki.

https://www.rnz.co.nz/national/programmes/morningreport/audio/2018753181/thousands-of-whanau-brace-for-winter-in-damp-homes

We really need to move beyond the bandaid of 'oil column heaters and thick curtains' in social housing. The existing housing stock is a huge problem but one that we can't ignore: at some point we need to admit that they are substandard (making 30,000 children sick enough to go to hospital) and it will take a huge investment to upgrade them.

Thousands of whānau are bracing themselves for winter with about one in three Māori living in cold, damp and mouldy homes. Housing advocates say that will mean thousands of Māori tamariki will end up is hospital this year with avoidable illnesses. There are fears the fall out from Covid-19 is goi...

Another very thorough article by stuff.co.nz
27/06/2020

Another very thorough article by stuff.co.nz

How a passive revolution and building code changes could help our health - and the climate.

Considering a new kitchen? Read this first: https://sustainableengineering.co.nz/choose-gas-for-cooking-please-dont/
23/06/2020

Considering a new kitchen? Read this first: https://sustainableengineering.co.nz/choose-gas-for-cooking-please-dont/

Choose gas for cooking? Please don’t.I recommend against combustion devices in homes—all of them. Using gas to cook is particularly bad, with health impacts related to the indoor air pollution it causes. (American think tank RMI calls it a hidden health crisis).If a client specifies a gas hob, f...

Queenstown Urban Village have set up a survey called "Imagining Our Home". It's a space for you to share your perspectiv...
18/06/2020

Queenstown Urban Village have set up a survey called "Imagining Our Home". It's a space for you to share your perspective on local housing - a place where we the people who call here home can voice the changes we want in how we build homes and local communities. Feel free to share. https://docs.google.com/forms/d/e/1FAIpQLSclkzcuXbBYGWvJBjmJnI_pcv6yA1QkasF8CxPv_TQ6Wot8PA/viewform

A collective of housing organisations, enterprises and advocates throughout the Southern Lakes have come together to hear from you about the ideal home that you'd like to live in. A people-powered approach to the homes that we create: that's the purpose of this. Instead of continuing to do what's be...

It works 😊
15/06/2020

It works 😊

So it was -6.1C at 8am on Sunday morning. If ever there was proof that Passive House works this is it: Between 9pm and 8am the temperature inside our house dropped from 22.6C to 20.6C. We had had no heating on since midday Saturday. That's a 2 degree drop in 11 hours for a temperature difference of nearly 29C.

(using 16 watts of energy to do so..)
15/06/2020

(using 16 watts of energy to do so..)

Building Professionals: Check out the latest BRANZ bulletin: Climate Change, Net-Zero Carbon and the Building Industry.
15/06/2020

Building Professionals: Check out the latest BRANZ bulletin: Climate Change, Net-Zero Carbon and the Building Industry.

So it was -6.1C at 8am on Sunday morning. If ever there was proof that Passive House works this is it: Between 9pm and 8...
14/06/2020

So it was -6.1C at 8am on Sunday morning. If ever there was proof that Passive House works this is it: Between 9pm and 8am the temperature inside our house dropped from 22.6C to 20.6C. We had had no heating on since midday Saturday. That's a 2 degree drop in 11 hours for a temperature difference of nearly 29C.

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