Knowledge Centre
K-FLEX Knowledge Centre
Pipe Insulation Guides, HVAC Expertise & Technical Resources
Welcome to the K-FLEX Knowledge Centre — the UK’s most comprehensive hub for insulation guidance, technical insight, and practical installation advice.
Material Selection Guides
- Elastomeric vs Mineral Wool — Which Should You Use?
- How to Choose the Right Pipe Insulation
- Best Insulation for Refrigeration, Chilled Water & HVAC
- Domestic vs Commercial Pipe Insulation — What’s Different?
- When to Choose Non-Combustible Insulation
Installation Guides
- How to Insulate Heat Pump Lines Effectively
- How to Seal Joints & Prevent Vapour Leaks
- Insulating Complicated Pipework (Elbows, Tees, Valves)
- How to Measure Pipe OD Correctly
- Common Installation Mistakes to Avoid
Condensation & Dew Point
- Dew Point & Condensation Explained Simply
- How to Prevent Condensation on Chilled Water Lines
- Why Is My Pipe Insulation Sweating?
Regulations & Compliance
- Part L Guidance for Pipe Insulation
- Fire Safety Requirements in Plant Rooms & Risers
- F-Gas Considerations for Refrigeration & HVAC Lines
Troubleshooting
- Why Is My Pipe Insulation Sweating?
- Why Is My Insulation Splitting or Softening?
- How to Fix Freezing Pipe Problems
FAQs
What thickness should I use? — 13–19mm for HVAC heating; 19–25mm for chilled water; 19–32mm for refrigeration.
What’s the difference between ST and SK? — ST is standard elastomeric; SK is self-seal for faster installation with no adhesive needed.
Can elastomeric insulation go outdoors? — Yes, but use K-FLEX Solar HT (UV-resistant) or protect standard insulation with cladding.
Do I need non-combustible insulation? — A1/A2 rated mineral wool is required in fire-critical plant rooms, commercial risers, and escape routes.