Closed cell spray foam install in Leander TX transforming an RV garage into a usable, insulated workshop

We were out on a job in Leander recently that felt pretty familiar. Nothing in the space was falling apart or anything like that. But it definitely wasn’t comfortable. The temperature inside that RV garage side building would swing like crazy. Hot during the day, cool at night, and just… not a place you’d want to spend a few hours working.

What We Found

The building itself was solid, but insulation-wise it really wasn’t doing much at all. You could feel air moving through certain areas, especially along the walls and roofline.

A few things stood out right away:
• little to no effective insulation
• gaps where outside air was getting in
• heat building up and just sitting there
• nothing really stopping temperature transfer

You could tell the space wasn’t holding temperature. It would just take on whatever was happening outside. We see this a lot in Leander, especially with detached garages and add-on buildings.

Why This Happens

A lot of people assume you can just throw some insulation in and call it a day. Sometimes that helps. But honestly, not always. If air is still sneaking in and out, insulation alone doesn’t fix much. It’s kind of like trying to cool your house with the windows cracked open. That’s usually the missing piece… air movement. There’s a good breakdown from the Building America Solution Center that explains how air flow affects insulation performance, and it lines up pretty closely with what we see in the field.

What We Did

For this one, we went with closed cell spray foam. The goal wasn’t just to “add insulation.” It was to take control of the space so it actually holds temperature and becomes usable year-round. We sprayed the walls and roofline to seal everything up tight. That way you’re not just slowing heat down, you’re actually stopping air from moving through the structure. This one was a little different because the homeowner had a clear plan. He wanted to turn this RV garage side building into a workshop. So, it needed to feel like a real, conditioned space, not just a storage area. We focused on getting full coverage and making sure there weren’t any weak spots left behind.

How It Went

From our side, it was a smooth job. We showed up when we said we would, got right into it, and worked through the space without dragging things out. Once everything was done, we made sure the area was cleaned up before we left. That part matters more than people expect.

The homeowner said it best:
“Exactly what I was hoping for. The space already feels completely different. Way more comfortable and actually usable now.”

Results

The change wasn’t one of those over-the-top, instant transformations. It was more subtle than that.
But you could feel it. The space started holding a steady temperature. It didn’t heat up nearly as fast during the day, and it wasn’t dropping off at night either.

A few things stood out:
• temperatures felt more even
• the space didn’t feel stuffy or trapped with heat
• it actually felt like somewhere you could work for hours

That’s usually how you know it worked.

Local Context

We see this setup all the time around Leander. Detached garages, RV buildings, side structures… they’re built well, but insulation just isn’t there or isn’t doing much. So, they end up being used for storage instead of what people actually want them for. Workshops. Gyms. Offices. Nothing major is “wrong,” it just isn’t performing the way it should. And over time, that gets frustrating.

Learn More

If you want to see how this type of work fits into the bigger picture, check out our spray foam insulation services in Leander. At Koala Insulation of Georgetown, we focus on fixing what’s actually causing the issue. No guessing. No overcomplicating it. If your space doesn’t feel quite right, there’s usually a reason.
Call us or visit our website for a free estimate.