Additions and garages
Different insulation, unsealed band joists, and unfinished garage walls dump heat into living space. Foam can be part of that fix. So can air sealing that has nothing to do with a full attic spray.
St. George, Washington, Ivins, Santa Clara, Hurricane
Santa Clara mixes established homes, room additions, and garage projects. The weak point is often the joint, where a new wing, bonus room, or attached garage meets the original house.
Santa Clara, UT
Different insulation, unsealed band joists, and unfinished garage walls dump heat into living space. Foam can be part of that fix. So can air sealing that has nothing to do with a full attic spray.
Even if winter feels fine, Santa Clara AC runs a long time. Ducts in a hot attic and leaky top plates show up as rooms that never even out. We look at both, not just foam type.
Access, existing insulation, whether the attic stays vented, and how the addition was framed. Photos of the addition roof and the original attic hatch are useful.