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Cases · Roof

Roof

An overview of all insulation materials collected from roofs and tested within the Start 2 Reuse Insulation project. Of all cases studied, 52% came from flat roofs and 19% from pitched roofs or from insulation fixed to the underside of slightly sloping industrial roofs or sheds.

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2025

37-year-old PUR gets a new life

PUR from 1988 was dismantled and reused to insulate a flat roof.

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Gent 2024

From a pitched roof to a facade.

Rock wool insulation dismantled by students gets a second life in a facade.

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2026

Glass wool for a garden outbuilding

From a pitched roof to insulation in an outbuilding.

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Kortrijk 2024

Cellular glass (1966) - 5 cm - flat roof

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Sint-Martens-Latem 2025

Cellular glass (1993) - 5 cm - flat roof

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Gent 2024

Cellulose (2010) - 23 cm - pitched roof

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Sint-Niklaas 2025

Cellulose (2015) - 21 cm - pitched roof

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Zoetermeer (NL) 2025

EPS (1994) - 15 cm - flat roof

EPS insulation on the flat roof of a cold store.

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Zoetermeer (NL) 2025

EPS (1994) - 30 cm - flat roof

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Den Helder (NL) 2025

EPS (2001) - 10 cm - flat roof

Insulation boards from a distribution warehouse.

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Huissen (NL) 2025

EPS (2004) - 10 cm - flat roof

EPS insulation from the flat roof of an industrial hall.

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Sint-Martens-Latem 2024

Glass wool (1993) - 12 cm - pitched roof

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Assen (NL) 2024

PIR (2005) - 10 cm - flat roof

The insulation was dismantled from a non-residential building and stacked on pallets wrapped in stretch film.

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2024

PIR (2008) - 5 cm - flat roof

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Lanaken 2025

PIR (2008) - 8 cm - flat roof

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Uddel (NL) 2025

PIR (2009) - 4 cm - pitched roof

Dismantling of insulation boards under purlins, from livestock barns.

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Izegem 2024

PIR (2011) - 8 cm - flat roof

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Gent 2024

PIR (2012) - 5 cm - flat roof

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Coevorden (NL) 2025

PIR (2013) - 7 cm - flat roof

Dismantling of PIR insulation from a house

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Willebroek 2024

PIR (2013) - 8 cm - pitched roof

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Willebroek 2021

PIR (2015) - 8 cm - pitched roof

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Sint-Niklaas 2024

PIR (2016) - 4 cm - flat roof

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2025

PIR (2017) - 10 cm - pitched roof

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Westmaas (NL) 2025

PUR (1975) - 7 cm - pitched roof

Insulation boards on top of purlins, with corrugated steel sheets on top.

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Eemshaven (NL) 2024

PUR (1988) - 7 cm - flat roof

Dismantling of a flat roof of industrial halls.

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Roosendaal (NL) 2024

PUR (1993) - 8 cm - flat roof

PUR insulation weighed down with a layer of gravel and tiles.

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Berlare 2024

PUR (2005) - 8 cm - Flat roof

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Kortrijk 2024

PUR (2006) - 4 cm - flat roof

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Sint-Martens-Latem 2024

Rock wool (1995) - 12 cm - pitched roof

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Waregem 2023

Rock wool (1998) - 6 cm - flat roof

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Waregem 2023

Rock wool (2001) - 5 cm - flat roof

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Waregem 2023

Rock wool (2006) - 8 cm - flat roof

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Roeselare 2023

Rock wool (2011) - 6 cm - flat roof

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Roosendaal (NL) 2024

XPS (1973) - 3 cm - flat roof

Flat roof insulation from a care home.

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Bavikhove 2024

XPS (1990) - 4 cm - roof

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2025

XPS (1995) - 10 cm - flat roof

Insulation dismantled from the flat roof of a distribution centre for flowers and flower bulbs.

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Amstelveen (NL) 2025

XPS (1997) - 5 cm - flat roof

Insulation boards from an inverted roof.

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Aalst 2024

XPS (2000) - 4 cm - roof

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Diest 2026

Rock wool (xxxx) - 7 cm - flat roof

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