When it comes to building construction, insulation plays a crucial role in energy efficiency and long-term cost savings. The effectiveness of an insulation system is primarily determined by its R-value, a measure of its ability to resist heat flow. In simple terms, the higher the R-value, the better the insulation performs in maintaining a comfortable internal temperature while reducing energy consumption.
In this blog, we’ll explore the different insulation options, why insulation is important, and how to choose the best insulation system for your building, ensuring that you make a smart investment for both the environment and your budget.
What are the Different Insulation Options? What Does the Council Request? Bare Minimum Requirement?
Insulation comes in various types, each with its own benefits. Here are some of the most popular options that Valostar Steel Construction trusts, with Africa Thermal Insulation (ATI) as our preferred supplier:
- Alububble Single-Sided
Available in white/black or silver, this insulation option has an R-value of 1.103. - Alububble Double-Sided
Available only in silver, with an R-value of 1.58, this option offers enhanced insulation properties. - Alutherm
This is available in thicknesses ranging from 50mm to 135mm, with an R-value from 1.25 to 3.38, depending on the thickness chosen.
For a more rigid option, we recommend Lambdaboard, another trusted supplier of Valostar. Lambdaboard insulation can be installed over or under purlins, providing an aesthetically pleasing finish with excellent insulation properties. It’s available with a white mineral facing, is paintable, and comes in tongue-and-groove options. The most popular Lambdaboard options include:
- 40mm: R-value 1.67
- 50mm: R-value 2.08
- 60mm: R-value 2.50






