Many construction professionals rely on spray foam for air sealing purposes. Although the sheathing plane is often the primary air control layer, spray foam is widely understood as an insulation product capable of filling gas and cracks in the building assembly. This is true to an extent, and there is a time and a place for spray foam. We’ll have that discussion another day.
These two pictures show AeroBarrier Sealant collected in-between two abutting framing members. The first picture is a sistered LVL ridge beam. The second picture is of a rafter/collar tie intersection. Here are the three main takeaways:
- AeroBarrier’s ability to adhere to engineered and dimensional lumber.
- Spray foams inability to seal all air leaks, especially those tight joints.
- Manually Applied vs. Physics Based – Spray foam installers may be under the impression that they made the house airtight, even when numerous leak points still exist. Our physics based process does not require us to locate any leaks less than a half inch.
These visible results help the Air Change per Hour Reduction from the Post Rough-in AeroBarrier Application at Cobalt Construction Management’s Inherited Project really come to life. The numbers on the Seal Certificate are one thing. To see these AeroBarrier Beads throughout the frame provides us with something that is truly tangible, allowing us to connect the dots.
To be continued…
