I am building a house in Minnesota. We are using floor trusses. Considering the lovely weather MN has, ice has built up on top of the floor trusses. Before we lay the tongue and grove plywood sheating we must scrape every truss to remove the ice.
Is there a better, quicker, easier way to do this besides building in the summer?
Thanks to all for the wonderful knowledge.
Sincerely Ryan
Replies
i'd use some calcium chloride sprinkled on each ..
when , and if, it breaks the bond.. then i'd scrape
or... since they're in place.. i'd tent it and put heat underneath...you have to give the glue a reasonable chance to bond the plywood, so the joists should be ice-free
R.....A side note . I have built 18 homes with floor trusse's, recently had one burn down . Ilooked at it after the fire and the open webbed floor truss's acted like a chimney and allowed the fire to spead from one end of the house to the other rapidly.I had canterlivered PT floor joists on one section of the house and the fire did not speard beyond that point . I belive we need some kind of fire block on the side of the truss's I don't know what kind of material (maybe fire rock if truss eng. oks) or how often the block should be placed, I ask around but mostly get the same answer "sounds like you got a point"........Spring is comming, good luck.
Nails,
I thought that every so many feet on those you had to sheathe one side in drywall or 3/4" ply. It's been awhile since I heard that, but I thought it was every 10' or 15' or something. I hope no one was hurt.
T.....Family of four , no one hurt , just before Christmas (bummer) Ins. co paid rebuild under way. I feel guilty as hell thinking I didn't get the word by either not listening or the info was not forworded still looking for answers and have 17 other houses on my mind,I've got no problem retrofitting other house's. Expect "Boss Hog " will be here soon with a "hey ya big dummy"and I welcome his and others input.
Yep, best practice, and code in many areas, is to install fireblocks every so often. Break "plenum" areas into sections no greater than NNN square (cubic?) feet. And probably a good idea to place fireblocks above interior walls of the floor below.
It's a matter of segmenting into so many square feet, so the width between fire blocked sections will depend on the depth of the structure or room
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And the reason you need the fireblocking is so the whole place doesn't burn down when you use a torch to melt the ice on the trusses.
I've had to break floor trusses into maximum 500 sf sections. OSB on one side of the webs will work fine because it is technically draftstopping, not firestopping.
blueJust because you can, doesn't mean you should!
Warning! Be cautious when taking any framing advice from me. There are some in here who think I'm a hackmeister...they might be right! Of course, they might be wrong too!