New roof

[jes]

I lost shingles during Katrina. I've read before that you can replace shingles 3 times before you'll need to replace the wood base? Is that true. Also, Dade county code calls for steel roof tie downs or something like that. Can you have that sort of thing installed to an existing house when you have a new roof put onto the house?

[Persepone]

Did they mean that you have to tear off the shingles if you repair them three times or that you can't have more than 3 layers of shingles on the wood?

It seems unlikely that you have to replace the decking (wood/plywood) if it is not damaged....

[Frank P]

I agree, you don't have to change the decking unless its rotten... and I would never recommended installing a new shingle roof over and existing shingled roof.... I think doing this will limit the life expectancy of the new roof... my opinion only

the tie downs usually connect the rafters to the top plate of the frame of the house... this can't be done replacing shingles....

[wayoutfront]

I lost shingles during Katrina. I've read before that you can replace shingles 3 times before you'll need to replace the wood base? Is that true. Also, Dade county code calls for steel roof tie downs or something like that. Can you have that sort of thing installed to an existing house when you have a new roof put onto the house?

no thats not true. Check your local codes for any special requirements. I am working Dade now, and that not the case.. and yes if there is access hurricane ties can be installed after being built... but it would be a chore.

It would not be required for a shingle replacement

the hurricane tie.. is a piece of metal that you nail to your rafter and wall top plate to hold them together

[Dionne]

It depends on the condition of your roof sheathing. If you have any soft spots.....reskin the entire roof before you apply new shingles.

The H25 Simpson hurricane clip is usually applied to rafters during initial construction. Some areas now require a strap that runs up the stud, over the rafter and back to the first top plate.

If your in a hurricane prone area and your getting ready to replace your roof......go to the aditional expense of installing a hurricane clip.....there are a number of ways it can be done. One word of caution.....make sure your carpenter uses the nails specifically designed for the clips and not just an ordinary 8P nail.