Seal it right the first time The Last Insulation You'll Ever Need
High-Performance Spray Foam Done Right
If you’re building in Idaho or Washington and need insulation that actually does its job, welcome to 509 Spray Foam. We’re builders ourselves, and we got tired of watching people cut corners on something as critical as insulation. So we did it better. Now, we help contractors and homebuilders seal tighter, build stronger, and meet code without the headache.
Spray Foam vs. The Other Stuff
Not all insulation does what you think it does. Traditional options can leave gaps, settle over time, and let energy (and money) leak right out of your building. Spray foam doesn’t play that game. It seals everything up tight and keeps it that way for the long haul. Yeah, it costs a bit more upfront — but it’s one of the few upgrades that pays you back over time.
| Feature | Closed-Cell Spray Foam | Fiberglass/Batt Insulation |
|---|---|---|
| Air Sealing | Locks everything down tight | Leaks through gaps, edges, and seams |
| Strength | Adds serious structural support | Just... sits there |
| Longevity | Lasts forever if kept clean & dry | Breaks down, sags, and needs replacing |
| Moisture + Vapor Barrier | Built in | Requires extra layers |
| Energy Efficiency | Up to 30% better | Less efficient, especially over time |
| Pest Resistance | Keeps rodents out | Rodents love to nest in it |
| Fireproofing Options | Multiple coatings available | Needs extra materials to meet code |
The Bottom Line?
If you’re building something to last, spray foam is a smart call. It tightens up your structure, makes it stronger, and helps you hit energy goals without chasing problems later.
30%
better energy efficiency than fiberglass or batt insulation
300%
more structural strength than standard framing alone
40%
average lower energy costs than standard insulation
