First to answer this question substantially correct wins a NACHI Beam. $109 value.

[sberlett]

American Cemwood Cement/Wood Fiber Roofing Shakes

[tdietrich1]

HardiShake?

[Gerald C. Wilcox]

cement asbestos shingles

[Nick Gromicko]

Patrick wins.

Actual answer provided by NCE is "Masonite Woodruf wood shingles"

[Patrick Bolliger]

WOOHOOO

Yes yes....

Something about lifespan and not meeting the H/O expectations..

[thejnicki]

Would it be a Hardi product?

[Darrell B. Hadler]

Well I thought I heard of everything??...a shingle made out of a wood composite glue?? and someone actually bought em?? Man I have a bridge I could sell them too. Never heard of or seen them up here in Canada.Yet...

[Gerald C. Wilcox]

or could it be the gaf roofing shingle?

[Doug Edwards]

Darrell,
Nor I. That would be like buying a paper umbrella and constantly worrying about rain.

[Darrell B. Hadler]

Doug,...LOL... Im still sitting here shaking my head in disbelief I wouldn't even consider that roofing product. Guess that's why there involved in a big lawsuit eh.:

[Doug Edwards]

Yeah, the Masonite siding performed so well....NOT!

[phinsperger]

Originally Posted by gromicko

Q. Which type of roof material is very slippery when dry?

Thatched roof

[jwilson4]

Cal-Shake, Inc. (“New Cal-Shake”) manufactured cement composite roofing products, marketed as Cal-Shake Shakes. Cal-Shake Shakes are a fiber cement roofing product made to look like wood shakes or slate tiles. Cal-Shake Inc. also manufactured Cal-Slate and Cal-Clay, both of which are included in this settlement.

[drancier]

JHBP Roof Shakes are roof shakes manufactured or distributed by James Hardie Building Products, Inc. ("JHBP") under brand names such as "HardiShake" and "HardiSlate."