Thermal performance

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Thermal plasterboards are mainly used in domestic renovations, extensions and conversions, to prevent heat loss through walls and loft space.

Building Regulations covering thermal efficiency requirements are becoming increasingly stringent, with builders and homeowners having to meet lower U-value targets.

View our range of Thermal Boards

Thermal U Value Calculator

There are a number of ways we can assist you with meeting Part L Building Regulations for U Values.  We have a helpful and easy to use digital tool which based on simple user input will determine the most suitable drylining products for your walls or loft space, whilst meeting the regulations. Our U Value calculator is available online or as a free ios or android app.  
Try it now.....

For larger projects or where more detailed information is required our Technical Enquiry line are here to help. Contact our Technical Enquiry Line on 01275 377456 or 0800 1456033 or email

Siniat Thermal U-Value Calculator

Find systems that meet your performance requirements

In this section, you can browse our systems for general information. Alternatively, our system selectors will help you to identify the appropriate system options to meet your performance requirements, and provide you with related documents and BIM objects.

Boards with thermal properties

This table is a quick guide to our boards which have thermal properties. Some boards offer additional properties including fire protection, acoustic insulation and impact resistance.

Plasterboards Moisture Fire Acoustic Impact Thermal Description
Standard/Plank/Base Board Standard
Vapour Board Vapour control layer
Moisture Board Moisture resistant
Contour Board Re-surfacing and creating curves
Fire Board Fire resistant
Fire MR Board Fire and moisture resistant
Fire V Board Fire resistant with vapour control layer
Fire Core Board High performance fire protection
E Board Acoustic
dB Board High performance acoustic
Acoustic Homespan Board Acoustic
Acoustic Homespan MR Board Acoustic and moisture resistant
Universal Board Fire, sound and impact resistant
Megadeco Pre-sealed, fire, sound and impact resistant
LaDura High performance impact resistant
Aqua Board Extreme wet areas
Weather Defence External sheathing
Thermal EPS Board Basic thermal insulation
Thermal XP Board Improved thermal insulation
Thermal PIR Board High performance thermal board
Thermal K Board High performance thermal insulation

Table star icon Standard    Table star icon Table star icon Good    Table star icon Table star icon Table star icon Better    Table star icon Table star icon Table star icon Table star icon Best

Can't find a system? Contact us

Show more Show less Contact our specification team
Specification team South Siniat Specification Manager Ben van Breda

+44(0)7814 772405
Contact Ben

Specification team South Siniat Drywall Site Technician Steve Casey

+44(0)7896 277364
Contact Steve

Specification team North Siniat Technical Services Drywall Site Technician Dave Nolan

+44(0)7813 531022
Contact Dave

Specification team Wales and the South West Siniat Specification Manager Chris Norris

+44(0)7836 265651
Contact Chris

Specification team Midlands Siniat Specification Manager Craig Shadwell

+44(0)7816 608469
Contact Craig

Specification team North West Siniat Specification Manager Jason Wittstock

+44(0)7976 985338
Contact Jason

Show more Show less Contact our technical services team
Technical advisor Siniat Contact Us Technical Advisor Jake Edwards Image

0800 145 6033
or 01275 377789
Contact Jake

Technical advisor Siniat Technical Advisor Lizzie Penney

0800 145 6033
or 01275 377789
Contact Lizzie

Technical advisor Siniat Technical Advisor Richard Wilson

0800 145 6033
or 01275 377789
Contact Richard

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