Roofing paper

bergkamp, Dec 17, 8:46am
covertek 407 or thermakraft 215 for standard corrugate roof ? , old house
has anyone used either ? a few roofers have told me not to use the bitumen based papers as they slowly fall apart . but i wonder about the synthetic products and if they will last the life of the roof .

nzshooter01, Dec 17, 6:07pm
Im about to roof two sheds at home, ill be useing the modern synthetic papers,
Ive seen older houses where the bitumen papers have all but dissapeared

tweake, Dec 18, 7:04am
i would go synthetic product.
the only problem i've seen is UV damage. keep it covered.

trade4us2, Dec 19, 2:39am
I have a very old corrugated iron shed. I have replaced all the timber and used corflute as building paper because I had lots of it. I think it looks good. Why wouldn't it last for a long time?
https://trademe.tmcdn.co.nz/photoserver/full/1454662484.jpg Here's the shed as I found it https://trademe.tmcdn.co.nz/photoserver/full/1454665047.jpg

apollo11, Dec 19, 3:25am
Where did you get your corflute from? Looking for a heap myself for a greenhouse.

trade4us2, Dec 19, 3:31am
I used to put up billboards in elections. I don't do that any more!

tweake, Sep 1, 9:59pm
corflute is not good to use. it won't let moisture go through it and dry. it can be just another condensing surface just like the iron. its not going to absorb any water. probably a bit better than the iron but water will run down and sit on the timber.
the shed probably tons of airflow and heat so it doesn't really hurt it anyway. but do it on a house and you will have rotting walls in no time.