Insulation That Works as Hard as You Do
- Farrow Built

- Aug 20
- 1 min read
Most people don’t wake up thinking about insulation.
But here’s why you should: the insulation in your building has more to do with your comfort, energy bills, and long-term building performance than nearly anything else.

At Farrow Built, we use R-28 fiberglass batt insulation in the walls of nearly every project. That might not mean much to most folks—but let me break it down for you:
We build with two-by-eight laminated posts, giving us 7¼" of space to insulate.
That means R-28 fits perfectly, creating a tight, energy-efficient envelope.
Prefer rockwool? You can upgrade to R-30—but what we’re doing already delivers exceptional performance.

And because our posts are spaced eight feet apart, you avoid the usual “thermal bridging” that causes so many other buildings to bleed heat. That means even with standard batts, your true combined R-value is incredible.
In the roof? We're blowing in R-40, which is more than enough for most shops, barns, and garages.
Want to supercharge it? Upgrade to R-60.
This isn’t just good insulation—it’s a smarter way to build. Your shop, garage, or barn will be more comfortable, more efficient, and more valuable from day one. Ready to get started?









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