Anyone ever "recycled" a roof?
I have a roof (my own house) I am going to raise soon to create living space where there is now attic space. I can save a good deal of money, time and exposure to the elements if I hire a crane to just lift the entire roof up and place it on pre-made kneewalls.
I have 25 years experience in residential construction, but have never done this particular project. What I have in mind is this;
The ridge is 16 feet long and the rafters span an 18 foot wide addition/family room. I would put collar ties on every rafter a good deal lower than normal to stiffen the bottom of the roof assembly and plywood gussets right up to the ridge board to keep the tops of the rafters tight to the ridge.
I would lag bolt 4x8s to the underside of the rafters on either side of the ridge about 3 down and punch 4 holes in the roof for lifting cables that would be attached to a spreader bar on an appropriately sized crane.
Lift the whole thing up, swing it to the side while the knee walls are stood up, braced off, then set it in place. Button things up and pop a beer.
I realize no one wants to say yea or nay, because of the danger involved, but how about some of your thoughts from those with similar experiences? Thanks in advance.....
Wayne Van
I have a roof (my own house) I am going to raise soon to create living space where there is now attic space. I can save a good deal of money, time and exposure to the elements if I hire a crane to just lift the entire roof up and place it on pre-made kneewalls.
I have 25 years experience in residential construction, but have never done this particular project. What I have in mind is this;
The ridge is 16 feet long and the rafters span an 18 foot wide addition/family room. I would put collar ties on every rafter a good deal lower than normal to stiffen the bottom of the roof assembly and plywood gussets right up to the ridge board to keep the tops of the rafters tight to the ridge.
I would lag bolt 4x8s to the underside of the rafters on either side of the ridge about 3 down and punch 4 holes in the roof for lifting cables that would be attached to a spreader bar on an appropriately sized crane.
Lift the whole thing up, swing it to the side while the knee walls are stood up, braced off, then set it in place. Button things up and pop a beer.
I realize no one wants to say yea or nay, because of the danger involved, but how about some of your thoughts from those with similar experiences? Thanks in advance.....
Wayne Van
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