This week we're speaking with Steven Heath, technical director at Knauf Insulation (UK and Ireland) and a really interesting and experienced person in the sector.

So while we had him, we ran through a bunch of our favourite hoary subjects: measuring performance, performance guarantees, and what we think about EPCs.

Knauf is a firm that's done some really interesting work in all of these areas and has even managed to make headway with the UK state in getting them to think about the value of testing performance, with EPCs and whatever SHDF is called now (the state-driven money tap for decarbonising social housing).

Notes from the show

• Steven Heath on LinkedIn
• Knauf Insulation's website
• The ZAP episode with Kate Crawford about HTC and the 'snug factor': A new way to measure performance, negative energy use, and learning from disaster zones, with Kate Crawford (KLH Sustainability)

**SOME SELF-PROMOTING CALLS TO ACTION**
We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.

• Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)
• Jeff, Alex, and Dan about websites, branding, and communications - [email protected]; Everything is User Experience
• Subscribe and advertise with Passive House Plus (UK edition here too)
• Check Lloyd's Substack: Carbon Upfront
• Join ACAN
• Join the AECB 
• Join the IGBC
• Check out Her Own Space, the renovation and retrofit platform for women

**END OF SELF-PROMOTING CALLS TO ACTION**