Client case · Construction and insulation

Net CO₂-negative insulation, proven with a baseline measurement

For Wesselink Isolatie, New Economy carried out a baseline measurement of the company’s CO₂ impact. The most striking finding: the savings from using the insulation are almost twice as large as the impact of production and installation — net CO₂-negative. With 100% biobased materials, every kilo of insulation stores 1.3 kg of CO₂, against 0.09 kg of emissions.

Download the baseline measurement (PDF)

1.3 kg
CO₂ stored per kg of biobased insulation, over its lifetime
0.09 kg
emissions per kg, for production and installation
≈2×
savings larger than the production impact: net CO₂-negative
8 mln
homes with energy label C or lower still to be insulated in the Netherlands
Climate impact of insulation materials at Wesselink Isolatie
Cover of the Wesselink Isolatie baseline measurement

Wesselink Isolatie baseline measurement

The full baseline measurement of the CO₂ impact as a PDF, with the reasoning behind the figures.

Download the baseline measurement (PDF)

About this project

Prepared by
New Economy.
Client and sector
Wesselink Isolatie — construction and insulation.
The question
Where does the company currently stand on climate impact, and what does climate-neutral business mean for day-to-day operations?
The result
Net CO₂-negative insulation, with hotspots and opportunities towards climate-neutral and regenerative business.

In short

For Wesselink Isolatie, New Economy mapped the CO₂ impact of the company’s activities through a baseline measurement. The core finding: biobased insulation stores more CO₂ over its lifetime than its production and installation emit.

The savings outweigh production. The CO₂ savings from the insulation are almost twice as large as the impact of production and installation — net CO₂-negative.

The question

The insulation task in the Netherlands is enormous: nearly 8 million homes with energy label C or lower still need to be insulated, plus a growing number of new-build projects. Insulation is often framed purely as CO₂ reduction through lower heat demand, but the environmental impact of producing the materials themselves stays out of view. Wesselink Isolatie, with the ambition to become climate-neutral and even regenerative, asked New Economy to make clear where the company currently stands.

The approach

Through a baseline measurement, New Economy mapped the current climate impact of operations — from purchased materials to the staff lunch — and identified where Wesselink can realise the greatest positive impact.

The result

The key findings are shown as figures above: net CO₂-negative insulation, with savings almost twice as large as the impact of production and installation, and biobased material that stores 1.3 kg of CO₂ per kilo against 0.09 kg of emissions. The baseline measurement also identified hotspots and opportunities, including biobased materials and renewable energy for blowing-in installation.

Towards climate-neutral, biobased insulation

With 10 years of experience, Wesselink is now moving towards 100% biobased and CO₂-negative insulation. Biobased materials store, for the long term, the CO₂ that plants absorbed while growing. The materials also improve the living environment, reduce noise nuisance and cut energy use — a double benefit.

Every euro spent on cellulose insulation stores CO₂ in your home!

Wesselink Isolatie

What this delivers

Net CO₂-negative insulation shows how construction can shift from burden to repair — towards regenerative practice. It usually starts with a baseline measurement.

Frequently asked questions

What did New Economy do for Wesselink?

A baseline measurement of the CO₂ impact of the company’s operations, with insight into hotspots and opportunities towards climate-neutral and regenerative business.

Is Wesselink’s insulation really CO₂-negative?

Yes: the CO₂ savings from using the insulation are almost twice as large as the impact of production and installation.

How much CO₂ does biobased insulation store?

Every kilo of biobased insulation material stores 1.3 kg of CO₂ over its lifetime, against only 0.09 kg of emissions.

What is a baseline measurement?

A fast way to gain insight into a company’s impact on climate (CO₂-eq), circularity and biodiversity, as a basis for targeted improvements.

Which sector was this project for?

Construction, specifically the insulation industry.

Related reading

Net CO₂-negative construction

From baseline measurement to insight into hotspots and opportunities towards climate-neutral and regenerative business. See also Baseline measurement / footprint.

Plan a conversation
Scroll to Top