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OWNER BUILDERS MANUAL page 2
Footings
Concrete Slab
Before the prep-work for the slab can be started, the site must marked out by the surveyor to make sure the home
is being built in the correct position and to the correct specifications.
The concrete slab is a vital part of the building as the home needs a strong foundation. This is
One of the most important parts of the building process and it is recommended that it be professionally done and that you follow the engineers details provided with your kit.
Check list prior to pouring your concrete slab:
The house has been sighted in the correct position on the block.
Plumber has completed all under slab drainage with approval.
Piers and thickening beams.
Under slab termite protection.
Polythene waterproof membrane all taped together at the joins.
All reinforcing steel.
Accurate formwork dimensions.
Elevated flooring system
Here you will require the post layout guide for your home. Most people choose to use a professional for their footings. A concrete footing is either poured and the posts are secured on top of the footing or the posts can be sunk into the concrete footings. Your engineers design will outline what is required for your selected method. A layout plan will be supplied giving the positions of all posts.
It is very important that all measurements are accurate and tally up with the construction drawings.
A council inspection is required before any concrete is poured for the slab or footings. Always ensure that you have the “Builders” copy of the plans, soil test and engineers details for your council inspector when he comes to site. You must be issued with a Form 16 from your certifier before continuing with the slab or footings.
Structafloor
These are the large sheets of timber that go over the steel flooring system. Please refer to the enclosed manufacturers guide for installation instructions.
Frame
The fixing of wall frames on a steel flooring system or a concrete slab is basically the same other than the components being used. Mark out the floor the same as your plans using a chalk line or marker and stand the walls in position in line with the marks you have made. The frames should be flush with the edge of the concrete slab or the floor system unless using brick veneer. Fix down through the bottom plate of the frame and into the slab or continuous blocking plate or end joist of the flooring system. Carry this out as you go and it will help stop the walls from slipping off the floor if a wall is bumped accidentally. Always use a level when joining walls together. Make sure all is lined up prior bolting down.
After all external and internal walls have been erected and fully anchored down, the bottom plates can be cut out of the doorways. Use an angle grinder to make these cuts.
With two storey homes, there may be some columns that the wall plates may have to trim around and also some beams that may have to be placed into position. After fitting the mid floor, erect the top storey wall frames, as per the fixing details on a steel flooring system.
