Leak in slate roof, use JD4310/430 + to access
- Thread starter alternety
- Start date
- Views: 7380
-
- Tags
- john deere 4310
The issue with things like plywood is that it contacts the roof at a relatively small number of high points on a very irregular slate surface. The number of contact points is unknowable, but they take the entire weight applied to the rigid sheet. The tendency there is to successively stress the individual slate to failure and move on to the next.
To the outside observer, this would most likely appear as an instantaneous failure of a number of slates and then it would be stable. If not moved even a little bit. There is extreme force multiplication at point contacts.
The foam rubber over the length of the ladder has better prospects.
To the outside observer, this would most likely appear as an instantaneous failure of a number of slates and then it would be stable. If not moved even a little bit. There is extreme force multiplication at point contacts.
The foam rubber over the length of the ladder has better prospects.
Yes I understand the "no-pressure" and that mine does put pressure on it. (maybe use foam under the plywood in the above suggestion.)
How much money do you have for the project? Large crane from the front yard to hoist you up (using a safety harness) up over the roof and lower you down... if you are small enough, I can mail you the safety harness... (seriously).
How much money do you have for the project? Large crane from the front yard to hoist you up (using a safety harness) up over the roof and lower you down... if you are small enough, I can mail you the safety harness... (seriously).
NC,
Inside access is not really possible and is not the way to seal a roof leak in any event. Blocking water after it has penetrated the exterior membrane is a recipe for rot in the roof deck.
Even if this were suitable, the pipe is 20' from the only crawlspace in the attic, 40' from attic access, thru 2' of blown fiberglass, with a path between rafters. Wouldn't do that even if I accepted the issue of sealing on the wrong side of the membrane.
Inside access is not really possible and is not the way to seal a roof leak in any event. Blocking water after it has penetrated the exterior membrane is a recipe for rot in the roof deck.
Even if this were suitable, the pipe is 20' from the only crawlspace in the attic, 40' from attic access, thru 2' of blown fiberglass, with a path between rafters. Wouldn't do that even if I accepted the issue of sealing on the wrong side of the membrane.
JoeL4330
Platinum Member
try this link EASYLIFT Tracked Access Platforms | Tracked Access Platform
don't know of availability in your area ...note, tracked and towables
don't know of availability in your area ...note, tracked and towables
The crane idea would work. It would need to raise the load (me) 30' and then North 60'. A fairly significant crane. If a crane company would be willing to accept the risk of dangling me. Or if I hired the guy that sealed the vent to operate the crane. He would not care. I would really prefer another approach.
I priced a cherry picker that would work if I could get it to the right side of the building at $200/1/2 day. If that is what I had to spend I would. My lot is an ugly place to bring big equipment on any side. When I moved in we had to move the household goods from the mover's trailer to a smaller truck (many loads). And yes this was a problem during construction. I had to rent a huge forklift to turn around a flatbed that thought he could deliver to the building. For another large item, the truck arrived, could not get in. Moved crane to a space down the road, brought in a smaller truck, moved the load, returned small truck and crane to site. After long haul truck left I realized from seeing the plumbing connections, that the item we were unloading was not mine. Longer story.
I priced a cherry picker that would work if I could get it to the right side of the building at $200/1/2 day. If that is what I had to spend I would. My lot is an ugly place to bring big equipment on any side. When I moved in we had to move the household goods from the mover's trailer to a smaller truck (many loads). And yes this was a problem during construction. I had to rent a huge forklift to turn around a flatbed that thought he could deliver to the building. For another large item, the truck arrived, could not get in. Moved crane to a space down the road, brought in a smaller truck, moved the load, returned small truck and crane to site. After long haul truck left I realized from seeing the plumbing connections, that the item we were unloading was not mine. Longer story.
smiley
Gold Member
Stupid thought but if you can get it up there, maybe off scaffold, a good size rubber raft bottom side up, or several air mattresses not quite fully inflated, with plywood work platform attached. that would spread the load evenly over a very large area, with no worry about high and low contact points.
North Country
Gold Member
My thought about access from the inside included opening it up all the way to the slate - but it sounds like it's a non-starter.
I'm thinking the air mattress (partially inflated) just might be the way to go. Inflate 3 of them about 1/2way - just barely enough to hold shape, maybe even less. Duct tape them in a line. Get them up on the roof. You can then slide the 2nd ladder (I'm assuming the first leans on the gutter) up the mattresses - slowly adding load, and the vinyl provides a sliding surface. You'll need an anchor at the top (remember, the vinyl's slippery) but your weight will be distributed across ALL the slate, not just the individual high points.
It's the sliding effect that makes me think this will work better than foam attached to the ladder. If you attach the mattresses to the ladder first, it may slide - or it may get hung up.
Can you anchor off that top structure? The harness is a no-brainer. At the very least, toss a line over the ridge if you can't tie off to the upper structure. If you fall and the line comes taught, you'll break slate at the ridgeline - and live.
I'm thinking the air mattress (partially inflated) just might be the way to go. Inflate 3 of them about 1/2way - just barely enough to hold shape, maybe even less. Duct tape them in a line. Get them up on the roof. You can then slide the 2nd ladder (I'm assuming the first leans on the gutter) up the mattresses - slowly adding load, and the vinyl provides a sliding surface. You'll need an anchor at the top (remember, the vinyl's slippery) but your weight will be distributed across ALL the slate, not just the individual high points.
It's the sliding effect that makes me think this will work better than foam attached to the ladder. If you attach the mattresses to the ladder first, it may slide - or it may get hung up.
Can you anchor off that top structure? The harness is a no-brainer. At the very least, toss a line over the ridge if you can't tie off to the upper structure. If you fall and the line comes taught, you'll break slate at the ridgeline - and live.
North Country
Gold Member
Look at this one.
A22-17
Does that go on the 3pt hitch or is the tractor modified to become part of the unit?
