Leistung

PUR Insulation & Spray Foam

Name: ThermoVolt Systems
Address: Hinterreihe 18, Oschersleben, 39387, DE
Telephone: +49 179 618 6957
Price range: €€

Seamless polyurethane spray insulation for roof, wall and floor.

Two-component PUR spray foam (DIN EN 14315-1/2) – seamless, joint-free thermal insulation on roof, attic, wall, façade, base plate and industrial halls. Open-cell PUR for sound insulation and breathable assemblies, closed-cell PUR for high mechanical loads, vapour-tight insulation and floor stabilization. Processed in a 2K spray process – cures in seconds, fully load-bearing within minutes.

Angebot anfordern +49 179 618 6957

PUR spray insulation – seamless polyurethane foam on industrial roof

Your benefit

Seamless – no thermal bridges
Air-tight in one step
Excellent values at low thickness
Form-stable, no settling

Material properties

Six key benefits

Effective insulation

25years

Parameter stability

Tightness of insulation

High performance

Low layer weight

Excellent adhesion

Vorteile

Warum PUR Insulation & Spray Foam?

Seamless insulation

No joints, no thermal bridges – the PUR foam creates a fully closed insulation layer in one work step.

Highest energy efficiency

WLG 023–028 (closed-cell) means the lowest thermal conductivity at minimal thickness – meets KfW-55 / 40 standards.

Air-tightness

Air-tight layer per DIN 4108-7 in one step – without additional foils or tapes.

Moisture protection

Closed-cell PUR is vapour-tight and rot-proof – ideal for cold roofs, basements and damp areas.

Fast application

100 m² roof in 1 day – sprayed, cured, ready. No drying or curing times.

Ideal for roof, halls & industry

Adheres to steel, concrete, wood, masonry – ideal for trapezoidal sheet roofs and complex geometries.

Cost comparison

PUR foam vs. mineral wool

For a roof or attic area of 100 m² in Germany, the typical cost difference between PUR foam and mineral wool – incl. material and installation – looks roughly like this.

Material	Thickness	€/m²	100 m²
PUR open-cell (attic)	~20 cm	35–60 €/m²	3,500–6,000 €
PUR closed-cell	~20 cm	60–100 €/m²	6,000–10,000 €
Mineral wool (standard)	20–24 cm	25–50 €/m²	2,500–5,000 €

PUR advantages

✓ No thermal bridges
✓ Air-tightness
✓ Faster installation
✓ Better values at lower thickness
✓ Does not settle
✓ Ideal for complex roof geometries

PUR disadvantages

! Higher initial investment
! Requires professional team and equipment

Mineral wool advantages

✓ Lower material costs
✓ Good acoustics
✓ Easily available

Mineral wool disadvantages

✗ Possibility of settling
✗ Thermal bridges with poor installation
✗ More difficult air-tightness
✗ Absorbs moisture
✗ Longer installation

Insulation performance comparison

For example:

20 cm PUR open-cell ≈ 25–30 cm mineral wool
10 cm PUR closed-cell ≈ approx. 18–20 cm mineral wool

What is more often chosen in Germany today?

For new roofs and premium renovations, increasingly:

●Spray Polyurethane Foam Insulation + vapour barriers / membranes
●For complicated roof structures
●For old roofs
●For used attic spaces
●For moisture problems

Mineral wool still dominates for:

●lower-budget investments
●DIY systems
●cost-driven developer construction

▸At current energy prices in Germany, professionally executed Spray Polyurethane Foam often pays back its higher upfront cost faster thanks to air-tightness and lower heat losses.

Normen & Qualität

Nach DIN/EN ausgeführt

Alle Arbeiten erfolgen nach den aktuellen deutschen und europäischen Normen – mit dokumentierter Schichtdickenmessung und CE-konformen Materialien.

●

DIN EN 14315-1

In-situ PUR/PIR spray foam – material requirements

●

DIN EN 14315-2

Installed product specification & execution requirements

●

EN 13165

Factory-made PUR/PIR thermal insulation products

●

DIN 4108

Thermal insulation & air-tightness in buildings

●

GEG

Gebäudeenergiegesetz – German Buildings Energy Act

●

DIN EN 13501-1

Reaction-to-fire classification (Euroclasses)

●

DIN 4102

National fire behaviour classification (B1/B2)

●

DIBt-Zulassung / aBG

General building authority approval (national use proof)

Building energy losses

Energy loss diagram
in residential buildings

Measurements for a single-family house with 128.4 m² of floor area, located in Greater Poland, with full insulation (roof, ceiling, wall, floor) at 18 cm thickness and the same thermal conductivity coefficient [W/m·K].

Source: Polychem Systems – technical study on energy losses in residential buildings.

Insulation comparison

Insulation layer thickness at the same thermal resistance

At identical thermal resistance (R-value), PUR foam requires the thinnest insulation layer of all common materials — a decisive advantage in tight build-ups and slim wall assemblies.

Closed-cell
PUR foam

25 mm

Polystyrene
(EPS)

40 mm

Mineral
wool

45 mm

Wood

140 mm

▸For the same energetic effect, PUR foam needs only 25 mm — 5.6× less than wood and almost half the thickness of mineral wool.

German Standards & Regulations

German Standards & PUR Regulations

Spray-applied PUR/PIR foam (Spritzschaum) and polyurea coatings in Germany are governed by one of the strictest normative frameworks in Europe. The full stack — from material standards through energy law (GEG), fire classification, emissions, polyurea waterproofing and mandatory REACH applicator training — must be documented before any Bauleiter signs off.

Material standards

DIN EN 14315-1 Sprayed rigid polyurethane foam produced in-situ on the construction site — material properties, classification and performance requirements.
DIN EN 14315-2 Specification for the installed insulation product — in-situ application requirements, quality verification and applicator qualification.
DIN EN 13165 Factory-made PUR/PIR rigid foam thermal insulation products — specification and performance.

Energy & insulation requirements

GEG Gebäudeenergiegesetz — the German Buildings Energy Act setting binding minimum thermal performance and primary energy demand for new builds and refurbishments.
DIN 4108 Thermal insulation and energy economy in buildings — including Part 3 (moisture protection) and Part 7 (airtightness, Luftdichtheit).
DIBt abZ / aBG Allgemeine bauaufsichtliche Zulassung / allgemeine Bauartgenehmigung — German national fitness-for-use approval, required for many non-standardised PUR systems.

Fire protection

DIN EN 13501-1 European fire classification (Euroclasses A1–F with s1–s3 / d0–d2). For PUR spray foam typically B-s2,d0 or B-s1,d0 in tested system assemblies.
DIN 4102 Legacy German fire classification (B1 schwerentflammbar / flame-retardant, B2 normalentflammbar / normally flammable) still widely referenced in German specifications.
MBO / LBO Musterbauordnung and federal-state building regulations define minimum fire class per building class and component type.

Emissions, health & indoor air

AgBB Bewertung Health-related evaluation scheme of the Ausschuss zur gesundheitlichen Bewertung von Bauprodukten — required for DIBt-approved products used indoors. VOC and SVOC emissions measured at 3 and 28 days.
Blauer Engel / eco-INSTITUT Independent environmental and pollutant certifications (Blauer Engel, eco-INSTITUT, natureplus) — the relevant emission and pollutant labels for PUR spray foam in the premium segment.
TÜV certificates Independent third-party testing and certification of material safety, durability and declared performance — a strong commercial argument for architects and planners.
DIBt abZ / aBG National fitness-for-use approval — confirms the product is regulatorily fit for use in German construction and is the entry condition for AgBB indoor assessment.

Polyurea waterproofing & corrosion protection

DIN 18531 Waterproofing of roofs — both non-utilised and utilised roof areas. Reference standard for liquid-applied polyurea on roofs.
DIN 18533 Waterproofing of building elements in contact with the ground — basements, foundations, plinths. Defines water exposure classes W1.1-E to W4-E.
DIN 18534 Waterproofing of indoor wet rooms — bathrooms, showers, commercial kitchens. Water exposure classes W0-I to W3-I.
DIN EN 1504 Products and systems for the protection and repair of concrete structures. Polyurea coatings are classified as surface protection systems (OS systems).
DIN EN ISO 12944 Corrosion protection of steel structures by protective paint/coating systems. Corrosivity categories C1–CX and durability ranges (e.g. VH ≥ 25 years).
DIN EN ISO 4624 Pull-off test for adhesion of coatings — mandatory acceptance test for polyurea coatings on concrete and steel.
DIN EN ISO 2808 Determination of dry-film thickness — the basis for the thickness protocol required across the entire coated surface.

Contractor requirements (mandatory in DE since 2023)

REACH-Verordnung EU REACH regulation — mandatory diisocyanate training since 24.08.2023 for operators working with products containing > 0.1% monomeric diisocyanates. No valid training certificate, no PUR spraying.
Applicator certificate Manufacturer system-training combined with the DIN EN 14315-2 competence proof. Prerequisite for sites under DIBt abZ / aBG approval.
TRGS 430 / PPE A2P3 Risk assessment per TRGS 430, ambient-air-independent respirator (fed-air system / compressed-air hose) or A2P3 half-mask, chemical protective suit, goggles and gloves — during spraying and reaction time.
Ventilation & documentation Ventilation measurement and protocols, indoor re-entry waiting periods after spraying, complete technical documentation incl. SDS, TDS and batch traceability.

What German Bauleiter & Sachverständige actually check — the 10 mandatory items

Every experienced Bauleiter and certified surveyor (Sachverständiger) runs a fixed checklist on-site. Missing any of these items can trigger acceptance refusal, warranty exclusion or building-authority complaints.

01 CE marking and ETA (European Technical Assessment) of the foam system — without these documents the material cannot legally be installed.
02 DIBt abZ / aBG (general building authority approval or Bauartgenehmigung) for the in-situ foam system used in Germany.
03 Lambda value (thermal conductivity λ) of the foam — proof per DIN EN 14315-1, the design value for GEG compliance.
04 Fire class per DIN EN 13501-1 (e.g. B-s1,d0 / B-s2,d0) and/or per DIN 4102 (B1), depending on component and use.
05 Sd value (water vapour diffusion-equivalent air layer thickness) — condensation and moisture protection proof per DIN 4108-3 (Glaser method or hygrothermal simulation).
06 Complete execution documentation: spray protocol, substrate preparation, climate/temperature values, material batches.
07 Thickness protocol with measurement points across the entire surface — minimum and mean against the energy target.
08 Applicator training certificate per REACH (diisocyanate training) and manufacturer system-training.
09 Public and professional liability insurance of the contractor with proof of cover amount and validity.
10 Technical data sheet (TDS) and safety data sheet (SDS) per REACH Art. 31 — to be presented on site.

★ Premium

What gives an edge in the German premium segment

In the German premium segment, price is rarely the deciding factor — documentation, traceability and certified quality are. The following elements separate a standard contractor from a system partner trusted on demanding projects.

Certified applicators with manufacturer system-training, REACH diisocyanate training and documented project references in residential and industrial construction.
Complete DIN/GEG documentation: lambda design value, U-value proof, condensation and airtightness analysis per DIN 4108, with GEG-compliant handover.
Thermographic measurements before and after — objective proof of insulation performance, detection of thermal bridges and leakage.
Execution and thickness protocols (DIN EN ISO 2808) with measurement grid, photo documentation and batch traceability — audit-ready archived.
System warranty in cooperation with the foam manufacturer — extended guarantees on material and workmanship within tested system assemblies.
Close cooperation with manufacturers and independent test institutes (TÜV, DIBt, eco-INSTITUT, Blauer Engel) — fast clarification on special cases and project-specific approvals.

▸Top-tier systems on the German market combine ETA, DIBt-Zulassung / aBG, Blauer Engel or eco-INSTITUT certification, TÜV testing and full QNG/GEG compatibility. This combination is what separates a code-compliant site from a legally watertight, energetically demonstrable and sustainably documented premium refurbishment.

Applications

Where we work

Private, commercial, industrial – we come to you with the right equipment.

Roof insulation (rafter, on-rafter, under-rafter)

Attic insulation (top floor ceiling)

Wall & façade (interior insulation)

Cold storage, halls, floors

Pipe and pipe insulation

Closed-cell PUR – WLG 023–028

Open-cell PUR – WLG 035–045

Spray foam DIN EN 14315-1/2

Rechtliches

Gewerbe- & Identitätsnachweis

Gemäß deutschem Handwerksrecht – Eintragung in der Handwerksrolle sowie Identitätsnachweis des Inhabers öffentlich einsehbar.

Bauakte

Documentation & Site Management

Every project is documented seamlessly – for you, your energy consultant and the building authority.

Thickness measurement report

Grid measurement per DIN EN 14315-2 with photo and date.

Warranty documents & CE conformity

Material safety data sheets, CE marking, REACH application records.

Site management & log

Daily site documentation, temperature/climate log, handover protocol.

Photo documentation before/after

Existing state, preparation, finished insulation layer – as PDF building file.

Förderung

Funding Programs

PUR spray insulation is eligible under BEG WG (Federal Funding for Efficient Buildings). We deliver all required proofs.

BEG WG

Federal Funding for Efficient Buildings – Residential

Subsidy up to 20% for insulation on roof, wall and top floor – via BAFA application.

BAFA

Federal Office for Economic Affairs and Export Control

Single measures building envelope incl. iSFP bonus 5% with individual renovation roadmap.

KfW

Reconstruction Loan Corporation

Programme 261/262 – low-interest loans with repayment subsidy for energy-efficient renovation.

Hinweis: Application and energy consultant proof MUST be filed before contract award. We support with all material and thickness data.

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