Flat roof needs replacing,Which is best Asphalt or rubber

[scooby007]

Any advice please on the pro's and cons to either having it replaced with a felt roof or the new rubber thingy.
The roof in question is about 10 by 6 feet and odd shape and angles it is an extension over the downstairs wc and porch, it also acts as a fire escape route from a bedroom window.Any advice please which would be the best to use.

 

[noseall]

three layer felt is probably the cheapest and carries the shortest life span, say maybe 10 years.
the rubber type( they say) will last maybe 25 years.

my argument is will a roof covering that costs three times more than a conventional, last three times as long?

beware , also of promises of long guarantees. some roof companies may not be around to honour their guarantees in 25 yrs time.

 

[^woody^]

Asphalt and butyl rubber will be relatively expensive for a such a small area.

Best option will be to go a with the three layer felted system,and just check it after 10 years and replace if it is showing signs of excesive wear.