The hidden cost of conventional concrete

As urban spaces grow, so does the amount of concrete and asphalt covering our landscapes. These hard, impermeable surfaces increase stormwater runoff, overload drainage systems, carry pollutants into our waterways, and contribute to urban heat. But a less visible consequence lies beneath: suffocation of the soil itself. Permcon’s Stuart Girvan looks at some solutions

Traditional concrete isolates soil from air and water. Deprived of oxygen and moisture, soil microbial communities die off, leaving inert ground that no longer performs the essential

functions it once did.

Healthy soils aren’t just dirt. They are living ecosystems that support microbes, fungi and

bacteria; sustain nutrient cycling and plant growth; and contribute to long-term carbon sequestration, which reduces the ‘greenhouse effect’. Sealing soils beneath concrete undermines all of that.

Permeable life-support systems

Permeable concrete is designed to work with soil, not against it. Permcon’s permeable concrete solutions allow water, air and nutrients to pass through to the underlying soil, maintaining the conditions needed for life below the surface by enabling:

• Aerobic microbial respiration.

• Nutrient cycling.

• Microbial necromass accumulation (a key stable carbon pool).

As well as supporting healthy soils, Permcon helps filter rainwater pollutants at the source, reduce urban heat island effects and improve the quality of water entering streams and rivers.

It’s infrastructure that works in harmony with the environment.

A natural ally

Permcon permeable concrete aligns with the concept of regenerative landscaping – a set of practices borrowed from regenerative agriculture that focuses on building living, self-sustaining soils.

At its core, regenerative landscaping is about restoring and enhancing the natural systems of the landscape – particularly the soil microbiome, water cycles and plant diversity – so that they function with minimal human intervention.

That needn’t mean that landscapers lose out on traditional maintenance contracts; only that

the nature of maintenance services changes to ensure the systems in place remain in good

health; functioning properly for the benefit of your customers and their shared environment.

Economical & ecological sense

These practices can be more than an ecological win. With the shift towards more sustainable

landscaping approaches across residential, commercial and civil projects, being a leader in this area could well be a competitive advantage.

Regenerative systems combined with materials like Permcon permeable concrete can create resilient landscapes that function more efficiently and help meet environmental, social and governance performance (ESG) goals.

Urban development is inevitable. But how we build, and what we build with, makes all the difference. Permcon, when used as part of a sustainable, regenerative landscape design, supports living soils, cleaner waterways and cooler cities.

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For more information and contact details, go to permconnz.co.nz