Thursday, November 4, 2010

the sun is coming out 2








as i said before all these steps in constructing the roof are very important for example the perlins not only keep the trusses up but also keep them straight we do this by pushing against the truss before nailing the perlin to it with the use of marking out and tacing nails allows for the instalation of the perlins far easyer. other aspects of the roofing are showen in these photos  
shows how the gable end truss is smaller for the outrigger
hw to install the lowest perlin on the edge of truss
strap bracing crossing over truss and under perlin
nail tacked in for easy instalation of perlins
tencioner
trusses at the end of the week
nog installed to help hold strap bracing and later hold outrigger
installing nogs inbetween trusses
side view of house

clamp used to keep truss down to double top plate for nailing
cyclone strap to hold down the ends of the trusses
the perlins on the edges of the houses are diffrent because they cannot cross over the edge of the truss so we prevent this by using a straight edge (rule, square etc) and place it across the end of the truss as showen in the picture above and then nail the perlin in.
this week we also installed strap bracing at the back end of the house this helps keep the roofs strength and together we install them by running them diaganaly across a saction of the roof above the truss and below the perlin and then chisel out a grove for the ends and with the use of the correct product nails nail them in then to increse the tencile strength we use the tensioner as showen above

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