BS 5422:2023 Pipe Insulation Thickness Calculator
This tool calculates the minimum required insulation thickness for pipework in accordance with British Standard BS 5422:2023 for UK applications.
BS 5422:2023 Reference Tables
Heat Loss Control - Non-Domestic
Enhanced Level (B-Tables) - Low Emissivity (ε=0.05)
Recommended insulation thicknesses (mm) for low emissivity surfaces.
| Pipe OD (mm) | Phenolic (0.022) | Fibreglass (0.037) | Rockwool (0.037) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
Standard Level (A-Tables) - Low Emissivity (ε=0.05)
Base level insulation thicknesses (mm) for low emissivity surfaces.
| Pipe OD (mm) | Phenolic (0.022) | Fibreglass (0.037) | Rockwool (0.037) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
Domestic Heating & Hot Water
Enhanced Level - Low Emissivity (ε=0.05)
Enhanced insulation thicknesses for domestic heating and hot water.
| Pipe OD (mm) | Phenolic (0.022) | Fibreglass (0.037) | Rockwool (0.037) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
Standard Level - Low Emissivity (ε=0.05)
Base level insulation thicknesses for domestic heating and hot water.
| Pipe OD (mm) | Phenolic (0.022) | Fibreglass (0.037) | Rockwool (0.037) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
Heat Gain Control - Chilled Water Systems
Low Emissivity (ε=0.05)
Minimum insulation thickness for chilled water systems to control heat gain.
| Pipe OD (mm) | Phenolic (0.022) | Fibreglass (0.034) | Rockwool (0.034) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
High Emissivity (ε=0.90)
Minimum insulation thickness for chilled water systems to control heat gain.
| Pipe OD (mm) | Phenolic (0.022) | Fibreglass (0.034) | Rockwool (0.034) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
Condensation Control - Chilled Water Systems
Minimum insulation thickness for chilled water lines - Low emissivity (ε=0.05) at 25°C ambient, 80% RH.
| Pipe OD (mm) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) | Fibreglass (0.034) | Rockwool (0.034) | Phenolic (0.022) |
|---|
Frost Protection - Selected Domestic Cold Water Systems
12-hour Period
| Pipe OD (mm) | Fibreglass (0.034) | Rockwool (0.034) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
8-hour Period
| Pipe OD (mm) | Fibreglass (0.034) | Rockwool (0.034) | Nitrile Rubber (0.038, 2009) | Polyethylene (Pending) |
|---|
Legal Disclaimer and Terms of Use
Important Notice
This calculator is provided for informational and educational purposes only. The calculations and results provided are based on BS 5422:2023 and related standards. Use as general guidance only.
Professional Responsibility
This tool does not replace professional engineering judgment or consultation. Verify all results independently.
Accuracy and Limitations
We make no warranties about accuracy or suitability for specific applications. Users must ensure compliance with local codes and project requirements.
Limitation of Liability
This calculator is provided "AS IS". No liability for damages arising from use.
