Fly rafter/Facia 5/09/2012

Today we had to dodgem bloack our side of the house where the purlins hung over. They had to be measure 305mm off the wall so we set up a string line from end to end. This giving us a straight line, we marked it off so we knew where to cut the excess purlin off and also where our fly rafter would sit flush. We took the string down and with clamps, we went along tacking our fly rafter in. The clamps were used for more stability and held the fly rafter hard against the purlin when nailing in. Oncwe we had that flush and tacked in, we then went along with a skill saw and cut off the excess purlins, making it flush with the fly rafter. We measured out every 1200mm on the top plate for where bracing would go . We also ran extra bracing under the purlins that hung over for that bit more of extra support.

 

With all the purlins on top of the rafters/trusses now doubled nailed, a team of 2 people went around drilling a blue screw (90mm) into each cross over section anchoring it down properly. Another fly rafter was run on the front side of the house under the out riggers. Dodgem blocked and nailed in as the went along making sure it was dead straight. Same was done for the back of the house too. With the whole house now had there fly rafters on, the next step was to put up our facia boards. The facia is just to be tacked in at first.

-cut both ends of the facia at 45' angle
-depending on the board and join, some had to have 5' tilte adding on
-paint each end with a sealant paint
-using your ruler, place it into the pre slotted gap giving for the saffit to slide into. Letting a mil or 2 of room for movement
-using galvinised nail, tack the facia to the fly rafter/purlins/blocking
going along tacking it every 600-800mm to stop it from saging

Some places needed more nails than others because of the natural bows that some had in them. Running our eye down the line, we could see the dips and with a clamp, we took the nails out, raised/lowered and re nailed, holding the facia in place. We now had 3/4s of it done by the end of the day.