Coefficient of Friction between SOG and Vapor Retarder

[llaraby]

Anyone know a good coefficient of friction value to use for a slab on grade placed directly on a vapor retarder? A source for the value would also be very useful. Thanks.

 

[Focht3]

As I recall, either BRAB or PTI says 0.75 to 1. My gut says it's PTI...



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[llaraby]

Typically for a sandy soil we would recommend using 0.35 to 0.40. 0.75 seems high for a vapor retarder as I would assume that it would be less than that for granular material.

 

[Focht3]

I didn't say that I agreed with the value!


Your values look reasonable, and are in the range I would use. But I don't have a published reference for those...



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