Drywall fire ratings

[Chuckca]

Does anyone know the fire ratings for 1/2 and 5/8 drywall?  Also, what is the correct name of the drywall that you must use as a fire break in the garage?  What would that fire rating be?

Thanks
Chuck

[peg_688]

 Here's afew links you can sort thru and see what pertains to your project.

http://en.wikipedia.org/wiki/Sheetrock

http://www.usg.com/navigate.do?pageType=Landing%20Page&primaryType=News&secondaryType=Product%20-%20General

http://www.gp.com/build/PageViewer.aspx?repository=bp&elementid=3487

The last one appeared to be the most user friendly link.

G/L PEG

[jraabe]

5/8" Type "X" is what is normally called out for fire protection purposes (a one-hour rating if I remember right). That might include the ceiling of a garage where habitable rooms are overhead, or an understair area used for storage.