Resealing older metal roof. Vinyl?

[ponytug]

I like the Henry Tropicool.

I bring a board or plywood, or a piece of 1/8 metal along to pull nails. Many of the nails here are screw nails that work loose enough to leak, but are still in there pretty good. I find the plywood spreads the force of the crowbar and makes the nail pulling quick, without damaging the corrugated metal. For the wallowed nail holes, I put a dab of the Henry's product into the hole and then screw it down and then more Henry's on top.

I try to do it not in full sun, and only when there is no condensation on the metal...

All the best,

Peter

 

[CliffordK]

Thanks,

That sounds like a LOT OF NAILS. 40x60, I think, or larger with the lean-to sides.

Roofing is all white, and the paint has held up well.

It was a couple of years ago when I replaced the broken sheets of fiberglass with polycarbonate. At that time I didn't want to stand on the metal so I put 2x6 boards in the valleys to work from. I don't know if it was necessary, but it made me comfortable.

I found this with a quick search.

Nail puller attachment for a slide hammer

I have to remove a couple of nailed down metal roof panels next week to repair leaks. Now if you've ever tried to remove those ring shank sealing nails without damaging the metal you know why I made this. Every other type of nail remover depends on leverage and if you use them on the highs of...

www.hobby-machinist.com

It looks like he combined a hoof trimmer and a slide hammer.

 

[jyoutz]

Thanks,

That sounds like a LOT OF NAILS. 40x60, I think, or larger with the lean-to sides.

Roofing is all white, and the paint has held up well.

It was a couple of years ago when I replaced the broken sheets of fiberglass with polycarbonate. At that time I didn't want to stand on the metal so I put 2x6 boards in the valleys to work from. I don't know if it was necessary, but it made me comfortable.

I found this with a quick search.

Nail puller attachment for a slide hammer

I have to remove a couple of nailed down metal roof panels next week to repair leaks. Now if you've ever tried to remove those ring shank sealing nails without damaging the metal you know why I made this. Every other type of nail remover depends on leverage and if you use them on the highs of...

www.hobby-machinist.com

It looks like he combined a hoof trimmer and a slide hammer.

I know that screws are better than nails for roofing, but if the nails are still tight, I would get some Henry’s roofing tar in a caulking gun and just glue all the nails in and seal around them. Let cure, then go over the roof with the fibered aluminum paint.

 

[CliffordK]

I haven't looked at it closely. From the ground I can see at least the last row of nails in the lean-to is very loose.

At least some of the nails were put in the rib peaks which should help prevent large flows of water entering them, but also makes them less secure. It might also allow caulking from below.

 

[Rockbadchild]

If you carefully step where the nails are its safe. It's lots of nails but how would you secure anything on top ? that would be the same amount of work

 

[CliffordK]

If you carefully step where the nails are its safe. It's lots of nails but how would you secure anything on top ? that would be the same amount of work

With my 2x6's for walking, I just laid them between the ribs, and they stayed in place with friction. I presume I had 20 footers. There may be a mix of rib nails and gutter nails, so I'm not sure what was in that section of roof.

If one wanted to do both sides simultaneously, one could tie the scaffold boards at the middle.

This all is beginning to sound like a lot of work!!! I did pick up a standing seam roofing machine. But, simply replacing or sealing the nails would be a lot less work than replacing the whole roof.

 

[grsthegreat]

A few years ago i had the roof replaced on my house. At the same time i had the roofer pull allthe old screws and washers on my 30 yo shop roof and replace all the screws with next size larger and longer. All watertight again.
than had them pull barn metal roof off and remove old crappy white batt insulation, plywood the roof, add moisture barrier and replace old 25 yo metal roof with bigger and longer screws.
way, way less expensive as new roof. And metal is still in great shape, only a bit faded.