What to use between sill plate and concrete base?

Elecman

What would be best to use as a sealer between the sill plate and a concrete base? This would be to prevent air leaks and stop the bugs getting thru! My local Lumber Yard guy says use ready-made black tar which does not disintegrate over time and is cheap. He says standard caulk will deteriorate over time with bugs/bacteria eating it.

From experienced framers..what is best?

AtlanticWBConst.

I've heard different things from different parts of the country. I will tell you what I have been accustomed to using over the years, and what others use, in my region; The standard material is "sill foam", or "sill seal". Examples:

http://www.building.dow.com/na/res-u.../sill_seal.htm

http://www.lowes.com/lowes/lkn?actio...404&lpage=none

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