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best roof for home right next to the salt water

brandonm78's picture

Hi All,

I live in the pacific northwest and just purchased a home on the beach.   It gets hit with salt water spray, and some heavy windstorms.   It needs a new roof and I am trying to find out what type of roof I should do.   The main concern is what is going to last a long time in a salt water environment.

The existing roof is around a 1:12 slope (almost flat).    It is a torch down.   

 

I have been looking at metal roofs, TPO, PVC, and here is what I have heard.

 

TPO roof in salt water enviroment - will last about 10 years.    $14k

Gavalume - will rust and eventually fail , 30 year life expectancy.   $16k

Aluminum painted with Kynar paint - 20 year warranted system, life expectancy maybe 35 years - $24k

Copper Roof - no data yet.   $32k

Follansbee TCS II (Stainless Steel Terne Coated) - 30 year warranty, 60 year life expectancy.  $35k

 

i want something where I am going to get the best bang for my buck but also that will last a long time, since I don't want to do this again in my lifetime.   Anyone have any ideas here, other options, real life experiences, let the discussion begin.

Brandon

since I don't want to do this (post #196511, reply #2 of 8)

since I don't want to do this again in my lifetime.

So when are you planning to die?


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

I'd also look into "rubber" (post #196511, reply #1 of 8)

I'd also look into "rubber" roofs.  Salt would not affect the lifespan.  Additionally it would be possible to deck over the roof and have a new use for the rooftop.

Do you mean something like (post #196511, reply #3 of 8)

Do you mean something like Carlisle's EPDM? Do you think that would work well in a salt water environment?

EPDM is not affected by salt (post #196511, reply #4 of 8)

EPDM is not affected by salt water as far as I know.

Odd that TPO, which is very (post #196511, reply #5 of 8)

Odd that TPO, which is very much similar chemically, apparently is affected.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

I don't know about (post #196511, reply #6 of 8)

EPDM (post #196511, reply #7 of 8)

EPDM should be fine.

A marina in town uses EPDM coatings on quite a bit of steel and concrete for salt water protection. There's an EPDM product called "Ship Shape" for marine use.


There are 10 kinds of people in this world; those who understand binary and those who do not.