Wednesday, December 8, 2010

 Nog can then be fixed for soffit fixing, all eves require nogs fixed between trusses on it flat or edge depend on the position of the house as long as it will not be in the way of fixing fascia board. Fix nog around face of the trusses vertically for fixing of weatherboard








C nail can also be connected on top plate and studs/jack stud with routing then nail flash against the walls
 Roof plan bracing will need to be fixed before nailing all purlin off, steel brace strap running 45 degree at end of roof plan under purlin is to be tension and nailed on tuess and top plate.

Wire dogs/Z nail is to connect purlin and truss together, bottom two and top two purlins are to be fix with 2 wire dog one each side of truss, all other area are to be fix with one in stagger pattern. There also require a wire dog at every cut end of purlin to enforce the hold down
70 x45mm purlin is to be fixed at 500mm spacing for the bottom two from eve and top two from ridge, the rest will be spaced equally. Nail off purlin when all roof trusses are level and equally spaced. Purline is to be cut and joint on truss and stagger pattern, 2 nails on all purlin to truss and 4 nails at joints of 2purlins
Truss setting on top plate can also be fixed off with two CT 200 Ceiling Tie on each side of the truss, all holes are to be nail for the strength of the tie
Dragon Tie can be installed before purlin are fixed, a piece of 100 x 50mm timber fixed 45 degree on top plate to top plate at external walls and no more than 2.5m away from the corner
 Two sloping verge of the house can be constructed either by outrigger & fly rafter or pre-nailed boxing. Outrigger is to overhang on verge of truss by 405mm and fix with fly rafter of 45mm at the end, a piece of diagonal outrigger is set approximate 45 degree setting on top of end truss and fixed onto fly rafter and outrigger. With boxing verge, it is to be constructed with nog and fly rafter on ground, then fixed onto the end truss. Attention require on straightening on face of fly rafter and bottom edge as for the flasher going to be fixed on
 Fix ceiling runner and space brace between the ceiling spaces, ceiling runner is to be running continuous and fix onto vertical nog of the trusses, space brace is to be fix approximate 45 degree on two end and centre of the roof space fixing onto either vertical member of trusses or nogs fixed on trusses