each full length wall stud fastened to the top plate using dog nail ,must be 25mm into top plate.
chiseled small groove before nailing to achieve flush finish
lumberlock plates used to fasten trusses to wall frames
0.75mm steel
g550 tensile strength
z275 grams galv coating,per square meter each side.
Tuesday, 31 May 2011
dodgy block,used to measure the straightness of wall,joist etc.here we are using a dodgy block to straighten the bottom plate.Its basically a string-line with a block between the string and material being straightened .the blocks must be the same size as these are the measure of straightness.we measure how straight it is by sliding another block between string and material straightness is achieved when the block fits perfectly between sring and material.
8x2 lintel,greater the span of lintel bigger the sg rating.
wall bracing
finished floor and wall frames erected ,two braces in front to temporarily hold external wall frames in place,while we construct remaining frames.
we cut particleboard 8mm in rather then flush with the boundary joist.
In industry this would usually be flush with the boundary joist because the roof would be on within two days,since we take a little longer we make this cut to compensate for swelling.
20mm flooring paricle board laid and nailed down,with glue around the edges for extra strength ,nailed at 200mm spacings and 150mm for intermediate joists.
siasalation paper is laid to help prevent moisture coming up through the the floor,also acts as a form of insulation,sag is put in between the joists to keep moisture below joists