Tuesday, 27 March 2012

GO SLOW

It has been quiet on the house front for the last couple of weeks. Money has more or less dried up, and we are awaiting a home loan application approval before we can recommence in earnest. The loan application is somewhere in the innards of Nedbank's Home Loan division. It seems they don't know how to pigeon-hole the application as all the construction thus far has been cash funded. The bank bureaucrats are not sure which box to check: is it a Home Loan, a Building Loan, or Self-Build Loan? One would think that having built the structure with cash would ease the loan application process, but oh no, that would be too logical a conclusion to draw when one is dealing with [b]or[w]ankers. They don't seem to know what to do, endless to-ing and fro-ing. Hopefully they will make their minds up soon. So much for Nedbank's much vaunted “Ask Once” advertising promise....

In the meantime we have been doing a few small things ourselves. We have built a temporary staircase to ease access to the first floor. We have also started to fix the plywood sub-floor to the first floor joists. We are using 18mm pine shutterply. As part of our noise mitigation attempts, we are stapling strips of Airothene foam underlay to the tops of the joists, and screw fixing the shutterply over these strips. The Airothene should help to inhibit sound transmission through the timber structure to the rooms below. In addition, we will be filling the void above the ground floor ceiling with more acoustic insulation.
The temporary stairway to heaven
The Master Suite in waiting
18mm shutterply on Airothene on EcoBeam
Table Mountain from the first floor



Thursday, 8 March 2012

FIRST FLOOR JOISTS ARE UP

The EcoBeam joists arrived on site Tuesday, and we had them all up on Wednesday. They consist of 76x50mm top and bottom chords of Grade 5 treated pine wood, with a zig-zag galvanised steel web. This is a more technologically engineered solution than using solid timber joists. It combines the best characteristics of both wood and steel to create an exceptionally strong beam. It uses very little material compared to a solid joist, and the web voids allow for the very flexible insertion of electrical and plumbing services. The joists were bolted to the brick walls using galvanised steel truss hangers.


The EcoBeam joists are lightweight and easy to handle, and very economical to purchase. We have no hesitation is recommending this product. If you are planning a double storey house, please do not put up a concrete first floor structure. This is far more expensive, and the masses of cement used would increase the carbon footprint of your building substantially.  An EcoBeam floor structure will save you more than 50% on the cost of an equivalent prestressed concrete slab structure.