---
url: https://www.eurocovers.eu/vs/shade-mesh
title: Hexagonal floating cover vs. shade mesh — comparison
description: Floating covers block evaporation; shade mesh blocks sunlight only. Full comparison of evaporation, algae, lifecycle, cost, and use-cases.
updated: 2026-05-25
---

# Hexagonal floating cover vs. shade mesh — comparison

> Hexagonal floating covers eliminate evaporation and algae; shade mesh blocks sunlight (suppressing algae) but is vapour-permeable, so it does NOT stop evaporation.

Hexagonal floating covers eliminate evaporation and algae; shade mesh blocks sunlight (so it
suppresses algae) but is vapour-permeable, so it does **not** stop evaporation. For most industrial
water bodies, the difference matters.

## Where each comes from

**Shade mesh** is a permeable woven fabric — typically HDPE or polypropylene — suspended above the
water surface on an anchor frame. It blocks roughly 50–95% of incident sunlight depending on mesh
density.

**Hexagonal floating covers** are solid modular HDPE elements that tessellate directly on the water
surface, blocking sunlight AND removing the water-air interface.

## When shade mesh is the appropriate choice

- Algae suppression is the only goal
- Evaporation reduction is not valued (heavily replenished water source, very low water cost)
- 3–7 year lifecycle is acceptable
- Small water body where anchor-frame economics work
- Aquaculture applications where partial gas exchange is required

For these use cases, shade mesh is cheaper upfront.

## When hexagonal covers are the appropriate choice

- Evaporation reduction is valued (most industrial applications)
- Odor or emission reduction is required
- 25+ year lifecycle is the operating horizon
- Anchorless deployment is required
- Larger water bodies (mining, water utilities, irrigation, biogas)

## Recommendation

For algae-only suppression on small specific applications, shade mesh works. For everything else,
hexagonal covers deliver the bigger benefit envelope at lower 10-year total cost.