Insulating an Old Stone Barn Roof with PIR Boards - Airflow, Skylights & Vapour Barriers

Описание: In this episode of the Tiny Barn Conversion, I’m installing PIR solid insulation into the old roof — a huge step toward making the space warm and energy efficient.

This isn’t just stuffing boards between rafters… I cover the full process, including:

✔ Preparing the roof before insulating
✔ Why airflow is critical (and how I used battens to create a ventilation gap)
✔ Cutting PIR boards quickly and accurately
✔ Staying safe when working with PIR insulation
✔ Using Gapotape for a tight, airtight fit
✔ A couple of things I’ve changed my mind on since starting
✔ Boxing in a skylight properly
✔ Installing vapour barriers around a skylight and deep window reveals
✔ Fitting downlights into PIR insulation
✔ Sanding and treating the exposed purlins

There’s a lot packed into this one — practical tips, lessons learned, and some honest reflections as I go. The barn is really starting to feel like a proper living space now.

Here are some links mentioned in the video:
🔗 Steve Roofer -    / @steveroofer  
🔗 Therma Hood TH095 - https://www.thermahooddirect.com/prod...
🔗 Gapotape - https://gaposhop.com/

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👉 Drop your insulation tips or questions in the comments — always keen to learn more!

#DIYBarnConversion #PIRInsulation #RoofInsulation #SelfBuild #TinyHome #NorthWales