Thermocell - CE-bevis

PX18389

E u r o p e a n O r g a n i s a t i o n f o r T e c h n i c a l A p p r o v a l s

SITAC
Box 553
SE 371 23 Karlskrona
SWEDEN

Tfn.:

+46-(0)10-516 63 00

Fax: +46-(0)455-206

E-mail: info@sitac.se

MEMBER OF EOTA

European Technical Approval ETA-12/0487

Handelsnamn
Trade name

Thermocell Wood Fibre Insulation

Thermocell Wood Fibre Insulation – Boric acid

Innehavare
Holder of approval

Thermocell Sverige AB

Metallverksgatan 9
721 30 VÄSTERÅS
Sweden

Produktbeskrivning och avsedd
användning

Lösfyllnadsisolering av cellulosafiber, träfiber

Generic type and use
of construction product

Wood fibre loose fill to be installed in building constructions for the
purpose of thermal insulation.

Giltighetstid
Validity:

från
from

2012-12-20
20.12.2012

t o m
to

2017-12-19
19.12.2017

Tillverkningsställe
Manufacturing plant

Thermocell Sverige AB
Metallverksgatan 9
721 30 VÄSTERÅS
Sweden

Godkännandet innehåller
This Approval contains

10 Sidor
10 Pages

Page 2 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

PX18389

LEGAL BASES AND GENERAL CONDITIONS

This European Technical Approval is issued by SITAC in accordance with:
− Council Directive 89/106/EEC of 21 December 1988 on the approximation of laws,

regulations and administrative provisions of Member States relating to construction
products1, modified by Council Directive 93/68/EEC2 and Regulation (EC) N°
1882/2003 of the European Parliament and of the Council3;

− Common Procedural Rules for Requesting, Preparing and the Granting of European

Technical Approvals set out in the Annex to Commission Decision 94/23/EC4;

SITAC is authorized to check whether the provisions of this European Technical Approval
are met. Checking may take place in the manufacturing plant(s). Nevertheless, the
responsibility for the conformity of the products to the European Technical Approval and for
their fitness for the intended use remains with the holder of the European Technical
Approval.

This European Technical Approval is not to be transferred to manufacturers or agents of
manufacturers other than those indicated on page 1, or manufacturing plants other than those
indicated on page 1 of this European technical approval

This European Technical Approval may be withdrawn by SITAC in particular pursuant to
information by the Commission according to Article 5(1) of Council Directive 89/106/EEC.

Reproduction of this European Technical Approval including transmission by electronic
means shall be in full. However, partial reproduction can be made with the written consent
of SITAC In this case partial reproduction has to be designated as such. Texts and drawings
of advertising brochures shall not contradict or misuse the European Technical Approval.

The European Technical Approval is issued by the approval body in English. Translations
into other languages have to be designated as such.

Official Journal of the European Communities L 40, 11.2.1989, p. 12

Official Journal of the European Communities L 220, 30.8.1993, p. 1

Official Journal of the European Union L 284, 31.10.2003, p. 25

Official Journal of the European Communities L 17, 20.1.1994, p. 34

Page 3 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

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SPECIFIC CONDITIONS OF THE EUROPEAN TECHNICAL APPROVAL

Definition of product and intended use

1.1

Definition of product
This European Technical Approval applies to the thermal insulation material in the form of
wood fibre loose fill with the trade names:

Table 0

Trade name

Sub trade name

Thermocell Wood Fibre Insulation

FeelingWood Fibre
H 2 Wood,
Thermocell Träfiberisolering

Thermocell Træfiberisolering

Thermocell Wood Fibre Insulation

– Boric acid

FeelingWood Fibre - Boric acid
H 2 Wood - Borsäure
Thermocell Träfiberisolering - Borsyra
Thermocell Træfiberisolering - Borsyre

The insulation material is derived from wood by mechanical crushing. During the manufacturing
process the product is provided with fire retardants and in some versions also boric acid.

1.2

Intended use
The insulation material is used for the production of thermal insulation layers, not exposed to
compression loads, by means of machine processing at the place of use. The machine
processing is carried out in dry conditions.

The insulation material can be used for the following types of intended uses:

Area of application for walls:

Type 1: Space filling insulation in closed cavities of external and internal walls.

Area of application for roofs and ceilings/floors:

Type 2: Insulation in closed cavities in arched or pitched roofs.

Type 3: Cavity insulation in horizontal roofs and floor constructions.

Type 4: Exposed insulation in horizontal or moderately pitched areas (≤ 15

°), e.g.

insulation of ceilings which are accessible but not subjected to foot traffic.

The insulation material shall only be installed in structures where it is protected from wetting,
weathering and direct contact to soil.

The provisions made in this European Technical Approval are based on an assumed working
life of the insulating material of 50 years, provided that the conditions laid down in clauses
4.2, 5.1 and 5.2 for the packaging, transport, storage, installation and use are met. The
indications given on the working life cannot be interpreted as a guarantee given by the
manufacturer or the approval body, but should only be regarded as a means for choosing the
appropriate products in relation to the expected economically reasonable working life of the
works.

Page 4 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

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Characteristics of product and methods of verification

2.1

Composition and production method
In regard to the composition and production method the insulation material shall correspond to
that which was the subject to the approval tests. Composition and production method are
deposited with SITAC.

2.2

Density

The density is determined according to ISO/CD 18393. Depending on the area of application
the densities stated in Table 1 shall be observed and controlled by the installer.

Table 1

Thermocell Wood Fibre Insulation

Thermocell Wood Fibre Insulation – Boric acid

Density, kg/m

(dry)

Type 1, cavity insulation in internal and external
walls

47-58

Type 2, insulation in closed cavities in arched and
pitched roofs ≤90°, where no settlement is accepted

47-58

Type 3, cavity insulation in horizontal roofs and
floor constructions, where no settlement is accepted

47-58

Type 4, Exposed insulation in horizontal or
moderately arched or pitched areas (≤ 15

°)

≥26

2.3

Settlement

The settlement is determined according to ISO/CD 18393 and test methods stated in Table 2.
The maximum values of settlement stated in Table 2 are not exceeded.

Table 2

Thermocell Wood Fibre Insulation

Thermocell Wood Fibre Insulation – Boric acid

Maximum settlement, %

Method A – Settling by impact excitation
Exposed insulation in horizontal

6,8

Method C – Settling of wall cavity insulation by
vibration

Method D – Settling by specified climatization
Exposed insulation in horizontal

8,2

Page 5 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

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2.4

Thermal conductivity

The thermal conductivity is determined at the reference temperature of 10

C according to EN

12667.

Thermocell Wood Fibre Insulation

The fractile value of thermal conductivity for the density range given in clause 2.2, Type 1-4
representing at least 90% of the production with a confidence level of 90% is

10,dry,90,90

0,0380 W/(m

⋅ K).

The declared value of thermal conductivity, determined according to EN ISO 10456 for a

moisture content of the insulation material at 23°C/50% relative humidity, is

= 0,039 W/(m ⋅ K)

Thermocell Wood Fibre Insulation – Boric acid

The fractile value of thermal conductivity for the density range given in clause 2.2, Type 1-4
representing at least 90% of the production with a confidence level of 90% is

10,dry,90,90

0,0380 W/(m ⋅ K).

The declared value of thermal conductivity, determined according to EN ISO 10456 for a

moisture content of the insulation material at 23°C/50% relative humidity, is

= 0,039 W/(m ⋅ K)

- the mass-related moisture content at 23°C/50% relative humidity: u

23/50

= 0,10 kg/kg

2.5

Reaction to fire

Thermocell Wood Fibre Insulation and Thermocell Wood Fibre Insulation – Boric acid
The reaction to fire of the insulating material is tested according to the standard
EN ISO 11925-2 and classified according to the standard EN 13501-1. The insulating material
meets the criteria of class D-s2, d0 according to EN 13501-1.

2.6

Resistance to the growth of mould

Thermocell Wood Fibre Insulation and Thermocell Wood Fibre Insulation – Boric acid:
Resistance to the growth of mould was determined according to CUAP 12.01/02cl2 “In situ
formed loose fill thermal insulating material and/or acoustic insulation material made of
vegetable or animal fibres”, Edition June 2003. The assessment of the growth of fungi
according to EN ISO 846 resulted in evaluation level 0.

2.7

Airflow resistance
Thermocell Wood Fibre Insulation and Thermocell Wood Fibre Insulation – Boric acid :
Airflow resistance of the insulating material is determined according to the standard
EN 29053, Method A. The mean value of the airflow resistance per unit length at a density of
26 kg/m³ is 3,7 kPa·s/m2 or more, density of 47 kg/m³ is 15,7 kPa·s/m2 or more.

Page 6 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

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2.8

Corrosion-developing capacity
No corrosion perforation according to CUAP 12.01/02cl2 “In situ formed loose fill thermal
insulating material and/or acoustic insulation material made of vegetable or animal fibres”,
Edition June 2003, Revision July 2009, Annex E.

No performance determined.

2.9

Retention of additives
The verification of the retention of additives according to CUAP 12.01/02cl2 “In situ formed
loose fill thermal insulating material and/or acoustic insulation material made of vegetable or
animal fibres”, Edition June 2003, Revision July 2009, was determined. No decrease in the
reaction to fire class nor resistance to the growth of mould have been observed.

2.10

Water absorption
No performance determined.

2.11

Emission of dangerous substances
The insulation material shall comply with the provisions of Guidance Paper H (“A harmonized
approach related to dangerous substances under the construction product directives”, Revision
August 2002).

In addition to the specific clauses relating to dangerous substances contained in this ETA,
there may be other requirements applicable to the product falling within its scope (e.g.
transposed European legislation and national laws, regulations and administrative provisions).
In order to meet the provisions of the Construction Products Directive 89/106/EWG, these
requirements need also to be complied with, when and where they apply.
With regard to health protection the product meets the product type 2 according to the EOTA
assessment criteria ("In situ formed loose fill thermal insulation material and/or acoustic
insulation material made of vegetable or animal fibres" Edition June 2003, Revision July
2009).

2.12

Critical moisture level
No performance determined.

In addition Evaluation and attestation of conformity and CE marking

3.1

System of attestation of conformity
According to the decision 1999/91/EC of the European Commission amended by 2001/596/EC
the system 3 attestation of conformity applies.

This system of attestation of conformity is defined as follows:

a)

Tasks of the manufacturer:

− factory production control,

b) Tasks of the notified body:

− initial type-testing of the product,

Page 7 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

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3.2

Responsibilities

3.2.1

Tasks of the manufacturer

3.2.1.1 Factory production control

The manufacturer shall exercise permanent internal control of production. All the elements,
requirements and provisions adopted by the manufacturer shall be documented in a
systematic manner in the form of written policies and procedures, including records of results
performed. This production control system shall ensure that the product and the components
are in conformity with this European Technical Approval.
The manufacturer shall only use raw materials stated in the technical documentation of this
ETA.

The factory production control shall be in accordance with the control plan
which is a part of the technical documentation of this ETA. The control plan has
been agreed between the manufacturer and SITAC and is laid down in the context
of the factory production control system operated by the manufacturer and SITAC

The results of factory production control shall be recorded and evaluated in
accordance with the provisions of the control plan.

3.2.1.2 Other tasks of manufacturer

The manufacturer shall, on the basis of a contract, involve a body which is notified
for the task referred to in section 3.1 in the field of thermal insulation materials in
order to undertake the actions laid down in section 3.2.2. For this purpose, the
control plan referred to in section 3.2.1.1 and 3.2.2 shall be handed over by the
manufacturer to the approved body involved.
The manufacturer shall make a declaration of conformity, stating that the product is
in conformity with the provisions of the ETA-12/0487.

3.2.2

Tasks of the approved body

The approved body shall perform the:

- initial type-testing of the product

The approved body shall retain the essential points of its actions referred to above
and state the results obtained and conclusion drawn in written reports.
For initial type-testing of the product the results of the tests performed as a part of
the assessment for the ETA shall be used unless there are changes in the production
line or plant. In such cases, the necessary initial type-testing has to be agreed
between SITAC and the approved bodies involved.

3.3

CE marking

The CE marking shall be affixed on the packaging or on the accompanying
commercial documents. The letters ‘CE’ shall be accompanied by the following
additional information:
-  name and address of the manufacturer,
-  last two digits of the year in which the CE marking was affixed,
-  number of the ETA,
-  trade name of the product,
-  density depending on the area of application,
-  filling weight,
-  declared value of thermal conductivity,
-  reaction to fire class according to EN 13501-1.

Page 8 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

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Assumptions under which the fitness of the product for the intended use was
favourably assessed

4.1

Manufacturing

The ETA is issued for the product on the basis of agreed data/information, deposited
with SITAC, which identifies the product that has been assessed and judged.
Changes to the product or production process, which could result in this deposited
data/information being incorrect, should be notified to SITAC before the changes are
introduced. SITAC will decide whether or not such changes affect the ETA and
consequently the validity of the CE marking on the basis of the ETA and if so
whether further assessment or alterations to the ETA shall be necessary.

4.2

Installation

The thermal insulation material shall only be installed in structures where it will be
protected from wetting and weathering and direct contact to soil.

The installation instruction given by manufacturer shall be taken into account.
Machine installation of the insulation material shall be performed by companies
trained by the manufacturer. In case of exposed insulation in pitched areas slipping
of the insulation material shall be avoided by the appropriate measures.

The product shall be protected from moisture during installation. The insulation
material shall not to be exposed to compression loads. The conditions according to
clause 1.2 shall be taken into account.

4.2.1 Parameters for the design

4.2.1.1. Design value of thermal conductivity

The design value of thermal conductivity shall be laid down according to relevant
national provisions.

4.2.1.2. Nominal thickness

When calculating the thermal resistance, the nominal thickness of the insulation
layer according to Table 4 shall be applied.

Table 4

Area of application

Thermocell

Thermocell – Boric acid

Nominal

thickness

Type 1, cavity insulation in walls

clear span of the

filled cavity

Type 2-3, cavity insulation in arched
and pitched roofs , horizontal roofs
and floor constructions

clear span of the

filled cavity

Type 4, exposed insulation in
horizontal and moderately pitched
areas (

≤ 15°)

Up to 30 cm 15% and over

30 cm 20% installation

thickness should be added to

the nominal thickness*

*Recomended value by the manufacturer.

The insulation layer shall have a constant installation thickness taking into account
the nominal thickness. For that purpose suitable height marks shall be arranged in
sufficient distances before the processing. The executing company shall check the
installation thickness.

When blowing in into closed cavities it shall be made sure by appropriate measures
(e.g. control drillings) that the cavity is completely filled with the insulation
material.

Page 9 (9) of European Technical Approval ETA-12/0487 issued on 20.12.2012

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4.2.1.3. Water vapour diffusion resistance

For the determination of the diffusion-equivalent air layer thickness of the insulating material the
water vapour diffusion resistance factor μ = 1 shall be used for calculating.

4.2.1.4. Installation density

Depending on the area of application the density at built-in stage stated in Table 1, clause 2.2 shall be
observed. The density is determined by calculation as a quotient from the mass of the material brought
in and the full volume. The execution company shall check the density.

4.2.2 Executing companies

The insulation material may only be machine processed by companies stated in a list of the
manufacturer which have adequate experience in installing the material. Concerning this matter the
manufacturer has to train these companies.

Indications to the manufacturer

5.1

Packaging, transport and storage
Packaging of the product shall be performed such that the product is protected from moisture during
transport and storage, unless other measures are foreseen by the manufacturer for this purpose.

5.2

Use, maintenance, repair
In the information accompanying the CE marking the manufacturer shall specify that the product shall
be installed following the installation instruction given by the manufacturer (machine processing by
trained companies according to 4.2.2 only) and that it shall be protected from moisture during transport,
storage and installation.

On behalf of SITAC

Borås, 20-12-2012

Lennart Månsson