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.

Primary Application / Purpose:

Building Type:

Pipe Outer Diameter (mm):

Insulation Material:

Custom k-value (W/m·K):

Material Information:

Ambient Temperature (°C): Standard design assumption: 20°C. Adjust for actual installation conditions.

Outer Surface Emissivity:

Heat Loss Parameters

Pipe Service Type:

Custom Operating Temperature (°C):

Performance Level:

BS 5422:2023 Reference Tables

Heat Loss Control - Enhanced Performance (B-Tables)

Minimum insulation thickness (mm) for non-domestic LTHW systems (≤95°C) - Low emissivity surface (ε≈0.05)

Pipe OD (mm)	Phenolic (k=0.022)	Fibreglass (k=0.035)	Rockwool (k=0.037)	Nitrile (k=0.038)	Polyethylene (k=0.040)

Heat Loss Control - Standard Performance (A-Tables)

Base level thickness for non-domestic LTHW systems (≤95°C) - Low emissivity surface (ε≈0.05)

Pipe OD (mm)	Fibreglass (k=0.035)	Rockwool (k=0.037)	Nitrile (k=0.038)	Polyethylene (k=0.040)

Condensation Control - Chilled Water Systems

Minimum insulation thickness (mm) for chilled water lines - Low emissivity surface (ε≈0.05)
Ambient conditions: 25°C and 80% RH

Pipe OD (mm)	Nitrile (k=0.038)	Polyethylene (k=0.040)	Fibreglass (k=0.036)	Rockwool (k=0.034)	Phenolic (k=0.032)

Call Us Now:

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

R

S

T

W

Y

BS 5422:2023 Pipe Insulation Thickness Calculator

Heat Loss Parameters

Condensation Control Parameters

Calculation Result

Heat Loss Control - Enhanced Performance (B-Tables)

Heat Loss Control - Standard Performance (A-Tables)

Condensation Control - Chilled Water Systems

Request a Call back

Request a Quote

BS 5422:2023 Pipe Insulation Thickness Calculator

Heat Loss Parameters

Condensation Control Parameters

Calculation Result

Heat Loss Control - Enhanced Performance (B-Tables)

Heat Loss Control - Standard Performance (A-Tables)

Condensation Control - Chilled Water Systems

Request a Call back

Added to Cart

Request a Quote

Not Seeing What You Need? Request a Custom Quote!

Get prices you can't find on the website. Click the button below to get a quote. It's Fast & Easy.