Blog

Blog

Here you will find the latest articles written by our team focusing on insulation solutions, product developments, and technical guidance.

U-value Calculator
Start your U-value calculation
Use the calculator

Standards relating to insulation: what is BS EN 13165, BS EN ISO 13788 and BS 5250:2021?

Published Date Published : 27 May 2025
Authored By Authored By : David Milner

British and European standards relating to thermal insulation can be grouped into two approximate categories: those to do with the manufacture and testing of the insulation products themselves; and those relating to how products are used as part of wider building construction.
Categories: Technical
Read More

How Celotex’s Technical Team adds value through expert insulation support

Published Date Published : 25 April 2025
Authored By Authored By : Mike Vaczi

Creating buildings designed for reliable thermal efficiency isn’t simply about material selection. It demands precise understanding of how insulation integrates with the entire building fabric.
Categories: Technical
Read More

XPS vs. PIR insulation: Understanding the differences for your project

Published Date Published : 28 March 2025
Authored By Authored By : Mike Vaczi

When comparing XPS vs. PIR insulation for a building project it is important to understand how the properties of XPS insulation differ from those of PIR insulation.
Categories: Technical
Read More

Understanding condensation risk analysis

Published Date Published : 05 March 2025
Authored By Authored By : Mike Vaczi

Effective moisture management is essential to prevent condensation risks, ensuring the health and comfort of a building’s occupants. Condensation risk analysis is therefore a key tool when designing and specifying building fabric elements, including floors, walls, and roofs.
Categories: Technical
Read More

SOPREMA UK Partners with XPO Logistics to Elevate Distribution and Sustainability

Published Date Published : 20 January 2025
Authored By Authored By : Mike Vaczi

SOPREMA UK, a leading supplier of waterproofing, roofing, thermal and acoustic products and system solutions, is proud to announce the selection of XPO Logistics as its preferred logistics partner.
Categories: Company News
Read More

Thermal Insulation Solutions for Masonry Homes

Published Date Published : 15 June 2022
Authored By Authored By : Mike Vaczi

Changes to the Approved Document Part L Conservation of Fuel and Power comes into effect on the 15th June 2022.
Categories: Part L
Read More

What are the full fill and partial fill insulation options for masonry cavity walls?

Published Date Published : 21 October 2021
Authored By Authored By : Mike Vaczi

Polyisocyanurate (PIR), glass mineral wool and blown insulation products may be specified as full and partial fill insulation solutions to improve the U-value of a masonry cavity wall.
Categories: Technical
Read More

What full fill insulation options are available for masonry cavity walls?

Published Date Published : 02 September 2021
Authored By Authored By : Mike Vaczi

Masonry cavity wall constructions can be filled with a rigid full fill polyisocyanurate (PIR) insulation product, the selected product should carry third-party certification confirming its suitability for use in cavity wall applications.
Categories: Technical
Read More

How does rigid full fill cavity wall insulation work?

Published Date Published : 26 August 2021
Authored By Authored By : Mike Vaczi

Traditionally, rigid insulation boards used in masonry cavity wall applications were offered only as a partial fill solution. Now, rigid full fill solutions for masonry cavity walls mean the clear air cavity can be significantly reduced or eliminated entirely.
Categories: Technical
Read More

What is perimeter upstand insulation in solid floor constructions?

Published Date Published : 16 November 2020
Authored By Authored By : Mike Vaczi

The use of perimeter upstand insulation is key to stopping heat escaping through the edge of the screed or concrete oversite in solid floor constructions.
Categories: Technical
Read More

What is a vapour control layer (VCL)?

Published Date Published : 10 November 2020
Authored By Authored By : Mike Vaczi

This post aims to cover what a vapour control layer is, why it’s important and when it’s applicable to roof and floor applications. Today, we are talking about another vital construction component called a vapour control layer, or a VCL.
Categories: Technical
Read More

What is PAS 2030 and how does it apply to the Green Homes Grant?

Published Date Published : 19 October 2020
Authored By Authored By : Mike Vaczi

Publicly Available Specification (PAS) 2030:2017 describes how energy efficiency measures in dwellings should be specified, installed and commissioned. It forms part of a network of standards and quality assurance measures intended to deliver high quality retrofit work.
Categories: Technical
Read More

A contractor’s guide to the Green Homes Grant scheme

Published Date Published : 02 October 2020
Authored By Authored By : Mike Vaczi

The £2bn Green Homes Grant scheme is a government-funded voucher scheme that helps homeowners pay for the cost of installing thermal insulation and other energy-efficiency measures in their homes.
Categories:
Read More

A homeowner’s guide to the Green Homes Grant scheme

Published Date Published : 02 October 2020
Authored By Authored By : Mike Vaczi

The government has launched its new £2bn Green Homes Grant scheme. Through the scheme, eligible homeowners will be able to apply to help pay for the installation of energy efficiency measures such as thermal insulation, as well as new boilers, double glazing, draught-proofing and solutions such as air-source and ground-source heat pumps.
Categories: Technical
Read More