Foam Windows and Doors
Great Stuff 187273 20- Ounce Window and Door Sealing Foam for Use with Applicator Gun
I use three different types of foam depending on how much expansion
No expansion - Foam Adhesive
Small expansion - Foam Windows and Doors
Large expansion (and fire seal) - Foam Gap Filler and Fire Seal
GREAT STUFF PRO™ Window & Door Insulating Foam Sealant air seals the gap around an installed window or door frame and the rough opening. The product also reduces the amount of moisture intrusion through fenestration openings, which can help prevent moisture damage and wood rot. This flexible polyurethane foam expands only enough to generate an effective seal, and is proven to not distort or bow window and door frames when properly applied.
Installation instructions: http://cx.images-amazon.com/images/I/817fQ3QVbrS.pdf