Tuesday, February 24, 2009

Our Steps to Putting Up a Truss Roof

after all plans were drawn up we put up scaffolding on the inside of the building




once scaffolding was up we measured and cut wall plates we tech screwed it from the top plate of the metal stud wall up into the wall plate. Then marked it out for all trusses.









then started to erect the the truss roof first starting at the front of the house with the truncated truss, and screwed that down with triple grips (we triple griped all trusses). after truncated was up we put our jack truss in, then the two hip truss went up, after those were screwed down we put all creeper trusses in.





then did all above instruction on the other side.



after both sides were down we made a start on the standard trusses starting with the two ends then doing all the rest. the three in the middle were boot bracketed to the truncated truss.





now that all truss were up we were able to make a start on fascia. so we measured out, put a nail and ran a sting line around the house. we squared the line down cut them off and put on fascia clips. once fascia clips were screwed on we cut our fascia and slaped that on. then when all fascia was on we put internal and external corners on.














valleys were next in line, we cut a 45 degree at the end of all valley board and put in our last saddle screwed them all down.








then battened the roof out.











job well done.

Monday, February 23, 2009

continuation of truss roofing










Today after putting our saddles in level we were constructing eves without hardie flex. first we started with cutting the tails off the truss to a long as possible length and had to apply that same length to all the rest of the truss tails. after we cut all tails we placed fascia clips at the end of the truss tails and screwed them on to a required height then cut the fascia to the length needed and placed them on the fascia clips, then when all fascia is on we put on internal and external corners on



After all fascia was on we started to screw down all speed brace to all trusses starting at the bottom outside trusses to the top middle truss



then when speed bracing was complete we marked out were roof battens were going (150mm from ridge line, 100mm up from fascia and in the middle of those two marks. also 150mm from each hip out to the next rafter). before putting our battens on we had to put our valley boards on to the measurement of the valley tray.



erecting a truss roof

today we started to put up a truss roof, so first we went to the class to plan how we were going to do this. after organizing our self into two groups we began to construct the roof. we first started with the plate then marked out were truss were going to go. the first truss we put up was the truncated truss (below is a picture of a truncated truss).

http://202.12.92.214/cj/trusses/t1.jpg




The following truss was the jack truss which is placed in the center of the truncated truss that may have a tail on it for eves after the jack truss is in position we placed our hip trusses on making sure the tops of the hips and jack line flush with each other. Then we proceeded to put all infills/creeper trusses in place. We repeated all these steps on the opposite side.




When both sides were completed we made a start on our Standard trusses, first erecting the two end ones, after leveling both trusses we put two screws on the top of each truss and stretched a string ling across them, we did this to act like a ridge and get the rest of the standard trusses centralized. six of the standard trusses with tails on them were triple griped to the plate and three of the trusses with dumps where boot bracketed to the truncated truss.