Jun 23, 2015 5:16 pm
First of all the Seven Stars refers to the energy efficiency rating that has been calculated for this house design. I am quite proud of this rating achievement and that this was achieved without the detailed energy saving touches that I plan for later in the build.
I had planned this house to be a low cost, low energy, and owner buildable project.
So, I holidayed in Bali, to study their Architecture. It was instructional for me to observe the way that the Balinese used the thermal mass of concrete together with the cooling power of water in contact with the concrete slab. I have also read some books on the subject of Green architecture and Green from the Ground by Johnston and Gibson is one I recommend, although it is written for Northern American winters and not Brisbane summers. I have used quite a lot of concrete in the floor slab and the upstairs floor is Hebel aerated concrete floor panels and this choice contributes to achieving the 7 star energy rating.
The steel frame design shown here is my adaptation of the Duragal Framing system. I had chosen to eliminate the screw height adjustment as I used a laser plane to measure the concrete floor levels at the post positions and the height adjustments necessary for each post. As a result of choosing a steel fabricator that has difficulties using a tape measure I still had to place steel packers on the majority of the posts.
The steel posts even at 3.4 meter heights are easy to manage and I can place the posts on the prepared chemset anchor studs by myself. The Bearers are quite heavy but with an extention piece I fabricated for a car engine hoist it was relatively easy to lift and place the bearers. The steel joists are relatively light and I was lucky to have a particularly tall friend around to lift one end over the bearers whilst I slid the joists into position.
All the steel for the downstairs framework is now in place and ready to be welded. There's light rain here in Brisbane today so the welding will have to wait for another day. Once the welding is completed and the steel is painted I can lay the Hebel floor panels. I have uploaded my photos to flickr and tried to attach the link below, but no images are showing up on my computer when I hit preview but I'll hit submit and see what happens,
Now edited with URL tab rather than img tab for photo attachment
Re: Macleay Island 7 Star2
Jun 25, 2015 1:43 pm
Can't access your photos without a yahoo login to get to flickr.
Good luck with your build, and will be keen to follow it. I did a OB out at Jimboomba, so I know how much fun it can be.
Re: Macleay Island 7 Star3
Jun 25, 2015 4:50 pm
Re: Macleay Island 7 Star4
Jun 25, 2015 5:16 pm
Nope. I can see your originals but to make it easier use photobucket ( if you can't get flickr to do it ) and just copy the IMG tags so they appear here rather than us having to go to a third party site.
Good progress by the way.
Re: Macleay Island 7 Star5
Jun 25, 2015 6:12 pm
Here I go with photobucket. Let me know how this works, I will have a heap more photos to load over the next few months. By the way, the 3D cad model was done on Alibre (now GeoMagic) as I had the software and was comfortable using it. I employed an Architect to redraw the house using Autodesk Revit (unfortunately my Alibre model could not be directly uploaded to Revit)and I will be sharing those plans here as well.
Re: Macleay Island 7 Star6
Jun 26, 2015 10:33 am
The photos show up now. Nice spot.
With regard to exporting your plans, you could have saved them as a 2D dwg or dxf and your architect could have imported those into Revit. You would have lost any 3D data though.
Re: Macleay Island 7 Star7
Jun 27, 2015 5:54 pm
I have attached some pages from the plans drawn by the architect. Martyn, of Bay Island Design did an excellent job in drawing the plans and in taking me through the Council Planning as well as Development applications. Also attached are some plans extracted from Cabinet Planner. I came across Cabinet Planner when I was planning the kitchen layout. That program not only lets you visualise the kitchen in 3D, it also lets you print out a full cut list of all the timber for the cabinets. As a bonus, for me anyhow, the software generates dxf files that you can send to your CNC Router table (which I just happen to have in my shed - a homebuilt MechMate). Great value from a program that costs $100, if you look at the website for CP you will see that many professional cabinet makers in America use CP to build Kitchens and for other cabinet work.
Re: Macleay Island 7 Star8
Aug 12, 2015 12:52 pm
Hebel floor is now half done. Not at all difficult to lay and well worth any extra effort over chipboard flooring in my opinion. I also took a pic of my owner-builder sign that I had carved on the Mech-Mate Router table.
Re: Macleay Island 7 Star11
Oct 26, 2015 7:37 pm
I have included here the cost of the build. There are many more things to pay for but I estimate that all up the building will cost less than $80,000 upon completion, great value for a quality home that also offers massive workshop space. I have also attached a photo of the ACQ Hardwood sleepers that I used as decking, Well pleased with these and at $21 for a 200mm x 50mm x 3.0m stick, it is significantly cheaper than the 19mm decking boards that I would have otherwise used, the second photo is of the upstairs steel frame. The rest of the house framing and roof trusses are all timber.
Macleay Island 7 Star - Building Costs to date.
Survey Fees , Boundary survey and House set-out, $825 + $440 = $1265
Soil Test Report = $681
Architect Fees Planning and Development Applications = $1800
Engineering Fees Slab and Footing Design, Steel Frame Design = $770
Energy Report = $200
Council Planning and Development Applications = $ 2594
Concreter for Floor Slab and Footings = $20,000
Steel House Posts, Bearers, Joists, and Bracing = $ 12,000
Hebel Floor panels and Transport = $ 5000 + $500
Veranda decking ACQ Hardwood sleepers = $1500
Rear Stairs, Timber and posts = $700
Timber Wall Framing = $ 3058
Transport Wall Framing, Decking and Upstairs steel = $ 1000
Roof Trusses = $3201
Total = $ 54,269
Roofing and insulation
Wall Cladding and insulation
Doors and Windows
Re: Macleay Island 7 Star14
Jan 01, 2016 11:15 am
I plan on using AES septic system.
Hebel floor area is 81m2 (9m x 9m) and the price includes the hebel adhesive, screws, maxbond and the trowel. Peachester Timber was my supplier.
I'm putting up the roof trusses at the moment, 4 to go, and will take some pics soon. I ordered the roof sheets two weeks ago and was pleasantly surprised by the relatively low price of $3164 for the main roof sheets (26 sheets x 5.4m length x 762mm cover, Colorbond Custom orb), battens, facia, gutter,insulation, etc, all from Roofingonline.
Re: Macleay Island 7 Star16
Jan 04, 2016 10:56 am
Thermal and acoustic qualities were considered. Another is that Hebel is completely water and weather resistant and I can slowly work on the framing upstairs without worrying about the floor rotting away.
Re: Macleay Island 7 Star17
May 06, 2018 2:38 pm
Long time absent from the forum. The house build has hit a major hurdle in the form of two former Redland City Council Building Inspectors. One being the Private Building Certifier that I engaged to carry out the floor slab inspection, the first of these inspections being in February 2015 and the last inspection in April 2015. I was told that the certificates for the inspection were to be mailed to me, two weeks later that they had been sent,a week later that he will follow up with his secretary. After three months of this bull and no certificates I lodged a complaint with the QBCC and that is when I went against the second former Redland City Inspector ( I did not discover until recently that both the Certifier I was complaining about and the person that I was complaining to worked together at Redland Council). The result of all this is that I had to endure a three year legal and bureaucratic nightmare with the full resources of State and Local Government pitched against me. Perhaps predictably, I lost that battle. I have attached a photo of the building as it was in January 2016 when I was forced to stop further work when it became clear the no certificate will be issued for the slab and that no local certifier will inspect the frame. I have recently commenced to model the building in Sketchup so I can enjoy some virtual building experiences without the QBCC's interference,
Re: Macleay Island 7 Star18
Sep 13, 2018 10:02 am
I am now working to close off the garage/ workshop area under the house. Firstly I sealed off the concrete floor with paving paint from Crystal Paints (top place for paints if you are in Brisbane, straight from the manufacturer). I made steel frame Bifold doors as they tuck away neat. The "glass" for these doors will be suntuff twinwall and frame will be all wrapped in timber.The hinges are gate hinges that Bunnings sell for $15 a pair. These work a treat but I did cut and reweld the hinges to close up the gaps.
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