HOW WE INSULATE AN EXISTING SHED — STEP BY STEP In this video, we break down exactly how we install insulation on an existing shed — and why preparation is everything. First, we install aluminium furring channels, securely fastened and screwed into place. These channels create a straight, solid framework so the insulation sits perfectly flat and secure. We then install our graphite carbon infused insulation panels, using colour-coded washers for a clean, consistent finish. Here’s the smart part