DIY Home Improvement Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
9 Posts
Discussion Starter #1
I was told type 3 asphalt is better than type 2 asphalt for roofing, any help would be appreciated.

Thanks

Alec
 

·
Registered
Joined
·
2,384 Posts
It depends on the slope of the roofing system and/or decking.

Type III will not run as readily as Type II, which is better to prevent asphalt drippage down the road.

BUT, a more viscuous product has more potential for self-healing any small imperfection type pin-hole leakage gaps.

So, the right answer, between the 2 types is what is it's intended end usage?

Coal Tar Pitch would be better than any of the more viscuous asphalts, btw.

Ed
 

·
Registered
Joined
·
9 Posts
Discussion Starter #3
The roof is a flat roof with minimal slope. And the deck is metal. Which aspalt will stand the test of time longer type 2 or 3? and it is a 4 ply bur roof.

Thanks
Alec
 

·
Low Slope Roofing
Joined
·
1,451 Posts
Generally speaking type III and type IV are most often used. Depending on slope. CTP is great also, most people are afraid to work with it.
 
1 - 4 of 4 Posts
Top