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Thermofloc


Thermofloc is a leading Austrian manufacturer of cellulose‑based thermal insulation, produced by Peter Seppele Gesellschaft m.b.H. in Feistritz an der Drau. The company specialises in near‑natural, sustainable insulation materials made from sorted, recycled newspaper, processed using an energy‑efficient manufacturing method that meets the highest ecological and building‑biology standards. 2seppele.at. THERMOFLOC Wärmedämmung: Umweltfreundliche Zellulosedämmung

Thermofloc insulation is natureplus®‑certified, CE‑marked, and recognised for its excellent thermal performance, vapour‑open behaviour, and moisture‑buffering capability, contributing to a stable and comfortable indoor climate throughout the year. The material provides high thermal resistance, effective summer heat protection, and enhanced acoustic absorption, making it suitable for both new‑build and refurbishment projects. 3wlw.at. THERMOFLOC Zellulosedämmstoff: Nachhaltige Dämmung mit höchster Eff ...

The company offers a complete intelligent insulation system, including blow‑in cellulose insulation, floor insulation, insulation pellets, vapour control layers, breather membranes, and adhesive products, all designed to work together as a continuous, airtight and diffusion‑open building envelope. 

Thermofloc insulation is installed using specialised THERMOBLOW blowing machines, ensuring a seamless, gap‑free insulation layer with virtually no waste. Certified installers across Europe apply the material under controlled air pressure, achieving consistent density and eliminating thermal bridges. This method allows the insulation to fill even complex geometries and tight cavities with precision.

Key Areas of Expertise

  • Cellulose blow‑in insulation - high‑performance, diffusion‑open insulation for roofs, walls, floors and façades.
  • Sustainable manufacturing - made from recycled newspaper with low energy consumption.
  • Complete insulation systems - membranes, vapour control layers, pellets and accessories.
  • Factory‑filled timber elements - compatible with x‑floc big‑bale systems for off‑site construction.
  • Moisture‑buffering performance - regulates humidity and prevents condensation.
Tech. support: 
Showing 1 to 5 of 5
146mm Thermofloc Adhesive Tape - Airtight Sealing for Vapour Control Layers and Membranes - 25m roll
Guide Price
Brand: Thermofloc Model: 146mm - 25m roll
Delivery Time: 1 - 2 days
146mm Thermofloc Adhesive Tape is a high‑performance polyethylene sealing tape designed for creating airtight, durable joints. It ensures a continuous, airtight building envelope that prevents uncontrolled air leakage and protects the insulation from moisture ingress. The tape is suitable for s..
Guide Price: £70.76
£84.91 inc VAT
50mm Thermofloc Adhesive Tape - Airtight Sealing for Vapour Control Layers and Membranes - 25m roll
Guide Price
Brand: Thermofloc Model: 50mm - 25m roll
Delivery Time: 1 - 2 days
50mm Thermofloc Adhesive Tape is a high‑performance polyethylene sealing tape designed for creating airtight, durable joints. It ensures a continuous, airtight building envelope that prevents uncontrolled air leakage and protects the insulation from moisture ingress. The tape is suitable for se..
Guide Price: £31.60
£37.92 inc VAT
60mm Thermofloc Adhesive Tape - Airtight Sealing for Vapour Control Layers and Membranes - 25m roll
Guide Price
Brand: Thermofloc Model: 60mm - 25m roll
Delivery Time: 1 - 2 days
60mm Thermofloc Adhesive Tape is a high‑performance polyethylene sealing tape designed for creating airtight, durable joints. It ensures a continuous, airtight building envelope that prevents uncontrolled air leakage and protects the insulation from moisture ingress. The tape is suitable for se..
Guide Price: £33.81
£40.57 inc VAT
Thermofloc VSD Membrane - Vapour-Retarding, Airtight Layer for Timber and Lightweight Construction - 1.5m x 16.7m roll Thermofloc VSD Membrane - Vapour-Retarding, Airtight Layer for Timber and Lightweight Construction - 1.5m x 16.7m roll
Guide Price
Brand: Thermofloc Model: 1.5m x 16.7m roll - 25m2
Delivery Time: 1 - 2 days
Thermofloc VSD (Variable Surface Diffusion) Membrane is a vapour‑retarding, airtight building membrane designed for use on the warm side of insulated building elements. It forms a continuous, controlled vapour‑resistance layer, preventing moisture from entering the insulation while still allowing li..
Guide Price: £125.08
£150.10 inc VAT
Thermofloc VSD Membrane - Vapour-Retarding, Airtight Layer for Timber and Lightweight Construction - 1.5m x 50m roll Thermofloc VSD Membrane - Vapour-Retarding, Airtight Layer for Timber and Lightweight Construction - 1.5m x 50m roll
Guide Price
Brand: Thermofloc Model: 1.5m x 50m roll - 75m2
Delivery Time: 1 - 2 days
Thermofloc VSD (Variable Surface Diffusion) Membrane is a vapour‑retarding, airtight building membrane designed for use on the warm side of insulated building elements. It forms a continuous, controlled vapour‑resistance layer, preventing moisture from entering the insulation while still allowing li..
Guide Price: £327.26
£392.71 inc VAT
Showing 1 to 5 of 5