Goal: As part of the Stage 2 full-cycle approach for building your home, these regular meetings have begun so that members can share their designs and lessons learned. The loose format is a member's talk about their home; an expert speaking about some topic; and a Q&A workshop for members to bring their ideas forward or questions about their house design.
Page Structure
We will put the presentations and videos here for each meeting within the week after, and also try to find other talks and material about members' home and collate it here for all to benefit.
1 and 2 bedroom designs - see the tab AffordableHomes in the spreadsheet at TBD
3 bedroom homes - see the tab OtherHomeDesigns in the spreadsheet at TBD
TBD
Peter Higgs page
One of the popular changes to the building standards was that the current level of support in helping members should be increased, with regular meetings, and communication in various media including in SLACK, in the NELN newsletter and in Despatch emails.
Members are keen to share their designs and are rewarded in our scoresheet for doing this, so these will present opportunities for this, as well as benefits to newer members designing their homes.
1. a) Heat-proof house and b) Variety of homes in Stage 1
2. Lowering Building Costs at NEV
3. Designing Sustainable Healthy Homes
5. Could a Worker Co-op assist with Stage 2
John Shiel introduced the relevant Dual Occupancy concepts of the Building Standards and Scoresheet, and took some questions.
Then Gillian Wellstead spoke of the requirements she gave to Graham Hunt of DHW, before Graham explained the design which is around 70% complete after approaching council to avoid costs and give more space to the garden,. He then explained how the Scoresheet points were gained to get a draft score of a little over 70, with some decisions to be decided with Gillian.
The Q&A panel was made up of John, Gillian, Graham and Emma Davis, a newly trained SDA.
The powerpoint slides are here.
The video that can be streamed to any device, including good questions and answers is here
Part 1 - 0:00 to 36:00 - Dual Occupancy Concepts by John Shiel; with Q&A from 36:00 to 59:30
Part 2 - 59:30 to 1:51:50 - Gillian and Graham Hunt Dual Occupancy Design and Passing the Building Standards with Scoresheet points, including concessions from council lowering the cost, and enlargening the garden area; with Q&A from 1:51:50 to 2:16:30
The interesting Q&A text is here.
The onsite detention tank requirements and design were requested, and are here.
Requirements & design table for your roof
Combined water tank and on-site detention tank design (could this form the basis of a bulk order?)
Several workers discussed how this might work, and the pros and cons (e.g. overcoming worker and material shortages, sharing resources, distributing profits, training members, having employment opportunities for younger members. While there might not be a builder licence initially, it could assist Owner Builders).
There will be more discussions in 2023
Video - Spanish Mondragon example - 3 min video clip - streams to any device
Architect and Passive House expert Andy Marlow presented how the proposed Stage 2 and new BASIX design approach of Passive House can be used instead of using NatHERS. Andy presented the advantages of living in a Passive House home, and replayed an interview he had made with Tony and Theresa Farrell's home where they walked thru the hone showing its design features and ventilation system.
There was an interesting discussion.
Andy's Presentation
Videos can be streamed to any device:
CSIRO seminar video on Sealing and Ventilation - https://ahd.csiro.au/seal-it-tight-and-ventilate-right/
Minimising the risk of moisture issues etc, balancing ventilation with how tightly sealed a home is, with the local climatic conditions (e.g. cold nights).
We had great talks from experts Dr Mark Dewsbury and Member Building Biologist, Mikala Dind. We also reviewed the ventilation systems of members Geoff Cameron and Tony and Theresa Farrell, but unfortunately they were not available to attend.
The main slides are here with details of the member ventilation systems, including calculations at the end that show how to design your own ventilation system (we ran out of time to cover this in the workshop).
Mark's slides are here
Mikala's slides are here
Here are the Vimeo LINKS (in blue) for the videos - they can be streamed to any device, or you can listen to the video file on your phone, like a podcast:
Intro and Agenda - John Shiel - 2 mins - slides are above
Designing Healthy Homes - Dr Mark Dewsbury - 30 mins - slides are above
Healthy Homes - Mikala Dind - 20 mins - slides are above
Member homes - Geoff Cameron Home Walthru and Tony and Theresa Farrell System
The case study was by George Gilmour on Overcoming Owner Builder Cost Challenges
Architecture expert and Building Standards Consultant Graham Hunt will also speak about lowering costs, with respect to design, builders and materials.
Attendees discussed their status and designs, and there was good feedback about the day.
George's Presentation is:
Graham's Presentation is:
Here are the 2 Vimeo LINKS for the 2 videos - they can be streamed to any device, or you can listen to the video file on your phone:
George Gilmour - Overcoming Owner Builder Cost Challenges - 50 mins
Graham Hunt - Building Affordably - 50 mins
Cost Estimating Spreadsheet - Eilean Watson with input from experts
2022 Watson-Home and Land Cost Estimation Spreadsheet
Dan & Deb Mohr's home design - 74% reduction in NatHERS cooling load
How to design a sustainable heatwave proof house (80% reduction in NatHERS cooling energy). Includes a video clip of Graham Hunt explaining the main features to keep the house cool.
Plus overview of houses in Stage 1 (materials, design features) - from John Shiel
Plus breakout rooms and Q&A.
Introduction - John Shiel - 4 mins, 30MB download
Dan Mohr's video - 45 mins, 350MB download
Graham Hunt's short video clip on technical features - 30 seconds, 11MB
John Shiel's variety of houses and materials in Stage 1 video 15 mins, 130MB
Variety of houses and materials in Stage 1- John Shiel - sustainable houses
Graham Hunt's pptx on technical features
Dan Mohr's presentation (TBD)