Replies

1. 
   Guest_ | Sep 01, 2000 02:47am | #2

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   What is the deck made of? I would use pressure treated sleepers. I wound't worry about fastening it, I can't see it blowing away if it is not raised up and I really can't see anybody stealing it (kidding).

1. 
   Guest_ | Aug 29, 2000 03:34pm | #1

   *b TVMDCYou will probably be laying 2x4 sleepers on the roof then 2x4 or 2x6 deck boards. Use treated for everything and 2-1/2" Stainless screws.As for the sleepers, cut strips of smooth modified bitumen about 6" wide from a roll. (You can get about (6) 6" strips about 33' long out of a roll. These are sacrificial strips to be put under the sleepers. There is no need to "Torch-Down" the strips.Good luck.

2. 
   Ted_W | Sep 01, 2000 05:06am | #3

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   Thanx guys,

   BTW, it'll be ptl with possibly redwood decking, handrails, planters and the like. If I get the job I'll post some pictures, probably end of Sept.

3. 
   Guest_ | Sep 02, 2000 05:40pm | #4

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   b TVMDC

   Ted, I forgot a small but important detail: When you lay the sleepers, lay them "downhill", i.e., parallel to your roof pitch. If you MUST lay them across the pitch, lay them at a slight angle, like 85 or 95 degrees and leave a 2" space between the ends of the sleepers. Otherwise, you will be creating a dam which will pond water and ruin your wood.

   As for the planters, if you build them, line then with plastic. If you use clay pots, use plastic saucers and DON'T over water!

   Looking forward to the pics.

   Bill

4. 
   Ted_W | Sep 03, 2000 02:16am | #5

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   Hey Bill,

   If I do get the job it'll be for a couple of months before we get started. I'm finishing a pretty cool kitchen right now. I'll post some pix of it soon. But here's a doozie for you.

   The roof is about 60' up. The deck will be massive, Maybe 40' x 60'. We plan on renting a crane to get the lumber up there. Supposing we decide we cant get a crane through the gate, or for some other reason decide against a crane.

   How would You get the lumber up there? :)

5. 
   Guest_ | Sep 03, 2000 03:58am | #6

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   b TVMDC

   Ted, Let's see, if you're using 2x6's, 40LF/8=5; 60LF/0.5=120; 5x120=600 pieces of 2x6 just for the deck boards.

   You'd better wear gloves, have a 100' rope and learn how to tie a clove hitch.

   I'm certain you figured for the crane rental in your bid, say $300 an hour? If you have to manually load the roof you would probably need 4 2-man crews to get it done in one day: 4 on the ground and 4 on top. If they traded places every hour you would get, at least, moderate productivity. Now let's see, 8 workers x 8 hours x $15/hour is $960 +30% fringe is $1,248 +30%O&P is $1622.40.

   I'd pay them piece rate of $1.50 per board ($1.50 x 600 = $900) and let them worry about how long it takes. Just cover yourself for this rather significant line item!

   I also recommend using Eb-Ty fasteners, McFeelys Stainless Square Drive Screws and be certain to put the Bark Side Down.

   Check out < Obsolete Link > this thread for info on Eb-Ty and fishing poles.

6. 
   Ted_W | Sep 04, 2000 06:51am | #7

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   Yeah Bill,

   I caught that post and inquired about eb-ty fasteners. Im passing the info on to the customer. We'll definately rent a crane for the lift. I wonder if a boom truck can reach the height. That would save a lot of time and money.

   Thanks for the math. I was talking with the customer this morning and we came up with 6 guys @ $15/hr x 8 hours = $720. But actually cost wasnt the issue so much as liability. What if one of them falls off the roof. Or if they drop a load on the land guys.

   So we'll be goin with the crane.

1. 
   nathan_w | Sep 05, 2000 03:50pm | #8

   *i I wonder if a boom truck can reach the height.I would most definitely be wondering the same thing....

1. 
   Bette_Collins | Sep 08, 2000 03:43pm | #9

   *We are planing on building a room on an existing building which will be 18' I 20'. There is to be a slant roof with 9' at the highest and 71/2 at the lowest. My question how do you support this there is to be no partitions. Do we need rafters to the joices? The existing building is a trailer with a roof that is slanted already. Thanks

7. 
   Ted_W | Sep 08, 2000 03:43pm | #10

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   Building a 40' x 60' roof deck on top of a comercial building, built up asfalt, no gravel. What is the best method of protecting the roofing material from the weight of the deck? Also, should it be mechanically fastened? I'd prefer not to penetrate the roof.