I'm building an ICF home in Connecticut for my family, with 11" ICF walls (6" of concrete) up to the 2nd floor deck.  At that point, I'm going to install anchor bolts in the top of the wall, and then a 2x12 PF sill.  What works best as a sill sealer, 2 courses wide of typical 5-1/2" sill sealer?

Jeff

There are some bituminous sealers that work very well. They never harden and maintain a seal 'forever'. Enercept supplies one for their SIPS(But I can't remember the manufacturer %^(). The stuff is messy though, but worth it!

Bituminous is OK in contact with the EPS of ICF blocks?

JB, I would recommend a 2" x 6" top plate of standard SPF on a sill seal, (standard) with the 2x recessed the 11/2" into the forms.

Dave

Bituminous is not OK with ICF. The petroleum solvents will melt it, hot or cold. Blueskin.

Blue skin? Have you both missed the objective! Top of wall looking for sill sealer, not a choice for bituminous or blue skin.

Dave

Nope, haven't missed the objective Dave.