SIST EN 16475-7:2016+A1:2020
(Main)Chimneys - Accessories - Part 7: Rain caps - Requirements and test methods
Chimneys - Accessories - Part 7: Rain caps - Requirements and test methods
This European Standard specifies requirements and test methods for rain caps that are used as components, subject to flue gas, in order to prevent rain entry into the chimneys. Rain caps already tested together with system chimney products or other chimney components, e.g. terminals, are not covered by this standard. Rain caps incorporating a bird guard are also included. It also specifies the requirements for marking, manufacturers’ instruction, product information and evaluation of conformity.
Abgasanlagen - Zubehörteile - Teil 7: Regenhauben - Anforderungen und Prüfverfahren
Diese Europäische Norm legt Anforderungen und Prüfverfahren für Regenhauben fest, die als dem Abgas ausgesetzte Bauteile verwendet werden, um vor Eintritt von Regen in die Abgaszüge zu schützen.
Regenhauben, die bereits zusammen mit Produkten für System-Abgasanlagen oder mit anderen Bauteilen einer Abgasanlage geprüft worden sind, z. B. Aufsätze, fallen nicht in den Anwendungsbereich dieser Norm.
Sie legt außerdem die Anforderungen an die Kennzeichnung, Herstelleranweisungen, Produktinformationen und Bewertung und Überprüfung der Leistungsbeständigkeit fest.
ANMERKUNG Regenhauben nach dieser Norm sind sowohl für die trockene als auch für die nasse Betriebsweise geeignet.
Conduits de cheminée - Accessoires - Partie 7: Chapeaux pare-pluie - Exigences et méthodes d'essai
La présente Norme européenne spécifie les exigences et les méthodes d'essai pour les chapeaux pare-pluie utilisés comme composants, en contact avec les fumées, afin d'empêcher la pluie de pénétrer dans les conduits de fumée.
Les chapeaux pare-pluie déjà soumis à essai avec les composants de conduits système ou les autres composants du conduit de fumée, tels que les terminaux, ne sont pas couverts par la présente norme.
Les chapeaux pare-pluie comprenant un dispositif anti-volatiles sont également inclus.
Elle spécifie également les exigences pour le marquage, les instructions du fabricant, les informations sur le produit et l'évaluation de la conformité.
Dimovodne naprave - Oprema - 7. del: Dežne kape - Zahteve in preskusne metode
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 16475-7:2016+A1:2020
01-oktober-2020
Nadomešča:
SIST EN 16475-7:2016
Dimovodne naprave - Oprema - 7. del: Dežne kape - Zahteve in preskusne metode
Chimneys - Accessories - Part 7: Rain caps - Requirements and test methods
Abgasanlagen - Zubehörteile - Teil 7: Regenhauben - Anforderungen und Prüfverfahren
Conduits de cheminée - Accessoires - Partie 7: Chapeaux pare-pluie - Exigences et
méthodes d'essai
Ta slovenski standard je istoveten z: EN 16475-7:2016+A1:2020
ICS:
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
SIST EN 16475-7:2016+A1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 16475-7:2016+A1:2020
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SIST EN 16475-7:2016+A1:2020
EN 16475-7:2016+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2020
EUROPÄISCHE NORM
ICS 91.060.40 Supersedes EN 16475-7:2016
English Version
Chimneys - Accessories - Part 7: Rain caps - Requirements
and test methods
Conduits de cheminée - Accessoires - Partie 7: Abgasanlagen - Zubehörteile - Teil 7: Regenhauben -
Chapeaux pare-pluie - Exigences et méthodes d'essai Anforderungen und Prüfverfahren
This European Standard was approved by CEN on 27 November 2015 and includes Amendment approved by CEN on 13 March
2020.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16475-7:2016+A1:2020 E
worldwide for CEN national Members.
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SIST EN 16475-7:2016+A1:2020
EN 16475-7:2016+A1:2020 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Product characteristics . 6
4.1 General . 6
4.2 Dimensions and tolerances . 7
4.3 Mechanical resistance and stability . 7
4.4 Thermal performance . 7
4.5 Hygiene, health and environment . 8
4.6 Additional criteria for chimney operation . 8
5 Testing, assessment and sampling methods . 9
5.1 Mechanical resistance and stability . 9
5.2 Thermal performance . 11
5.3 Additional criteria for chimney operation . 14
6 Product information . 18
6.1 Manufacturer's instructions . 18
6.2 Minimum information to be included in the manufacturer's instructions . 18
7 Classification and designation . 19
7.1 General . 19
7.2 Temperature classes and test temperature . 19
7.3 Corrosion resistance . 19
7.4 Soot fire resistance . 20
8 Marking, labelling and packaging . 20
8.1 Rain cap . 20
8.2 Packaging . 20
Annex A (informative) Deemed to satisfy information . 21
Annex B (informative) Coefficients of flow resistance. 23
Annex C (normative) Choice of size for type test and sampling . 24
Annex D (normative) Method of measuring the hot gas temperature . 26
Bibliography . 28
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SIST EN 16475-7:2016+A1:2020
EN 16475-7:2016+A1:2020 (E)
European foreword
This document (EN 16475-7:2016+A1:2020) has been prepared by Technical Committee CEN/TC 166
“Chimneys”, the secretariat of which is held by ASI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2021, and conflicting national standards shall
be withdrawn at the latest by January 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document includes Amendment 1 approved by CEN on 13 March 2020.
This document supersedes EN 16475-7:2016.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association !deleted text".
!deleted text"
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
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SIST EN 16475-7:2016+A1:2020
EN 16475-7:2016+A1:2020 (E)
Introduction
EN 16475-7 is a part of the series of standards for “Chimneys — Accessories” and consists of:
— Part 1: Silencers
— Part 2: Chimney fans
— Part 3: Draught regulators, standstill opening devices and combined secondary air devices
— Part 4: Flue dampers
!deleted text"
— Part 6: Access components
— Part 7: Rain caps (this part)
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SIST EN 16475-7:2016+A1:2020
EN 16475-7:2016+A1:2020 (E)
1 Scope
This European Standard specifies requirements and test methods for rain caps that are used as
components, subject to flue gas, in order to protect against rain entry into the chimney flues.
Rain caps which are part of components of a system chimney or other components of a chimney such as
terminals, are not covered by this European Standard.
!Rain caps which have not the same opening on all sides or do not have at least the same shape and
cross section on the opposite sides are not covered by this European Standard."
It also specifies the requirements for marking, manufacturers’ instruction, product information and
attestation and verification of constancy of performance (AVCP).
NOTE Rain caps according to this standard are suitable for both dry and wet chimney applications.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 206, Concrete — Specification, performance, production and conformity
EN 1443, Chimneys — General requirements
EN 1856-2:2009, Chimneys — Requirements for metal chimneys — Part 2: Metal flue liners and
connecting flue pipes
EN 1857, Chimneys — Components — Concrete flue liners
EN 1858, Chimneys — Components — Concrete flue blocks
EN 14297, Chimneys — Freeze-thaw resistance test method for chimney products
EN 14471:2013+A1:2015, Chimneys — System chimneys with plastic flue liners — Requirements and test
methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1443 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
3.1
rain cap
product to protect against rain entry into the chimney flue
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3.2
flow resistance of the rain cap
additional pressure loss due to the flow of the flue gas passing the rain cap
3.3
nominal flue size
numerical designation of flue size which the rain cap is protecting against rain ingress, which is a
convenient round number equal to or approximately equal to either the internal diameter in
millimetres of circular flue liners, the internal width in millimetres of square flue liners or the internal
width and breadth in millimetres of the cross section of rectangular flue liners
3.4
rain cap size
outer dimension or dimensions of the projected horizontal surface of the rain cap, expressed in
millimetres
3.5
free area
vertical dimension from the top of the flue outlet to the underside of the rain cap edge multiplied by the
perimeter of the flue which the rain cap protects, reduced by the area of e.g. any support legs, bands,
bird or spark guard mesh, expressed in square millimetres
4 Product characteristics
4.1 General
Recommended minimum material specifications for rain caps are the following (see Annex A):
a) Metal rain caps made of material quality 1.4401 with a wall thickness of the cap of at least 0,6 mm,
at least three supports with a wall thickness of each at least 1,0 mm, method of fixings ww, wr, rr, b
or st and a relation between dome/pyramid and height/size of at least 10 %.
b) Metal rain caps made of material quality 1.4301 with a wall thickness of the cap of at least 0,6 mm,
at least three supports with a wall thickness of each at least 1,0 mm, method of fixings ww, wr, rr, b
or st and a relation between dome/pyramid and height/size of at least 10 %.
c) Metal rain caps made of material quality EN AW – 4047A with a wall thickness of the cap of at least
1,5 mm, at least three supports with a wall thickness of each at least 1,5 mm, method of fixings rr, b
or st and a relation between dome/pyramid and height/size of at least 10 %,
d) Concrete rain caps with a compressive strength of the concrete of at least C25/30 according to
EN 206 (characteristic value ≥ 25 MPa on 150 × 300 cylinder), a relation between thickness and
length of longest side of at least 20 % and fixings with tenon and mortise or similar assembly shape
!and" mortar or jointing material.
NOTE Method of fixing ww = double weld, wr = weld and rivet, rr = double rivet, b = bolt and washer,
st = single self-tapping screw.
Metal:
The material of a metal rain cap shall be in accordance with EN 1856-2.
Concrete:
The material of a concrete rain cap shall be in accordance with EN 1857 or EN 1858.
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Plastic:
The material of a plastic rain cap in contact with combustion products shall be in accordance with the
chimney requirements of EN 14471 with the durability against UV (location class) LE.
4.2 Dimensions and tolerances
The thickness of material of the individual components of the rain cap shall be not less than that
declared by the manufacturer.
4.3 Mechanical resistance and stability
4.3.1 Compressive strength
When tested in accordance with the test method described in 5.1.2, the rain cap shall withstand a load
2
of 2,9 kN/m ± 5 % of the outer dimension of the horizontal surface of the rain cap without reducing
the original free area of the rain cap by more than 10 % after the test.
NOTE 1 The value corresponds to the maximum snow load zone in accordance with EN 1991–1-3.
Metal and concrete rain caps as described in 4.1 a) to d) are considered to meet the requirement.
NOTE 2 Method of fixing ww = double weld, wr = weld and rivet, rr = double rivet, b = bolt and washer,
st = single self-tapping screw.
4.3.2 Wind load
When the rain cap is tested according to the test method described in 5.1.3, the rain cap shall not show a
reduction of the original free area of the rain cap by more than 10 % after the test when a minimum
2
horizontal traction load of 1,5 kN/m of the laterally projected surface area is applied (see Figure 2 a)),
2
and when a vertical traction load of 0,75 kN/m of the upward projected surface area is applied (see
Figure 2 b)).
Metal and concrete rain caps as described in 4.1 a) to d) are considered to meet the requirement.
4.3.3 Resistance to freeze–thaw
Rain caps shall be tested for their freeze–thaw resistance in accordance with EN 14297.
Metal and plastic products are considered deemed to satisfy freeze–thaw resistance.
4.4 Thermal performance
4.4.1 Reaction to fire
!The reaction to fire shall be declared for rain caps. For plastic materials, the class of reaction to fire
shall be declared as defined in EN 14471:2013+A1:2015, 4.10, and tested in accordance with
EN 14471:2013+A1:2015, 7.7.8.
NOTE Materials which are by default classified A1 (see Commission Decision [96/603/EC (2)]) need no
further testing."
4.4.2 Fire resistance
4.4.2.1 Heat stress
When the rain cap is tested in accordance with 5.2.2.1, the rain cap shall not show a reduction of the
original free area of the rain cap by more than 10 % after the test.
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Metal rain caps as described in 4.1 a) are deemed to satisfy the requirements of T600 and shall be
designated as T600.
Metal rain caps as described in 4.1 b) are deemed to satisfy the requirements of T300 and shall be
designated as T300.
Metal rain caps as described in 4.1 c) are deemed to satisfy the requirements of T200 and shall be
designated as T200.
Concrete rain caps as described in 4.1 d) are deemed to satisfy the requirements of T450 and shall be
designated as T450.
4.4.2.2 Resistance to sootfire
When the rain cap is tested in accordance with 5.2.2.2, the rain cap shall not show a reduction of the
original free area of the rain cap by more than 10 % after the test.
Metal rain caps as described in 4.1 a) are considered to meet the requirement.
Concrete rain caps as described in 4.1 d) are considered to meet the requirement.
4.5 Hygiene, health and environment
4.5.1 Corrosion resistance
The corrosion resistance of the material of the rain cap shall be in accordance with the material quality
of the equivalent flue liner material for that chimney designation as given in EN 1857, EN 1856-2 or
EN 14471.
Metal rain caps as described in 4.1 a) are considered to be designated 3.
Metal rain caps as described in 4.1 b) are considered to be designated 2.
Metal rain caps made of material quality EN AW – 4047A and constructed as described in 4.1 are
considered to be designated 1.
Concrete rain caps made of material according to EN 1857 (or EN 1858) are considered to be
designated 3.
4.5.2 Dangerous substances
National regulations on dangerous substances may require verification and declaration on release, and
sometimes content, when construction products covered by this standard are placed on those markets.
In the absence of European harmonized test methods, verification and declaration on release/content
should be done taking into account national provisions in the place of use.
NOTE An informative database covering European and national provisions on dangerous substances is
available at the Construction website on EUROPA accessed through:
http://ec.europa.eu/enterprise/construction/cpd-ds/
4.6 Additional criteria for chimney operation
4.6.1 Cleaning of the chimney
If the cleaning of the chimney is intended to be made with the rain cap in position and the rain cap
cannot be removed easily, the distance shall be sufficient to allow a cleaning brush of the size
appropriate to the flue to be cleaned to exit the flue. A distance of at least 100 mm is recommended.
If the rain cap is removable for cleaning purposes, it shall be secured appropriately against falling.
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4.6.2 Rainwater ingress
When the rain cap is tested according to the test method described in 5.3.1, the mass of the water
3
collected in the flue shall not exceed 0,05 mm /s per millimetre of flue diameter.
Rain caps with the overall dimension providing an angle of at least 27° from the vertical of a line from
the edge of the rain cap to the edge of flue are considered to meet the requirement under no wind
conditions.
It is recommended that the size of the rain cap is at least of the same size as the exterior dimension of
the top of the chimney in order to protect the top of the chimney from rain where it is otherwise not
protected.
4.6.3 Flow resistance of the rain cap
The manufacturer shall declare the coefficient of flow resistance of the rain cap.
The declared value shall be determined according to the test method described in 5.3.2 or obtained
from data given in Table B.1.
A zeta value of maximum 1.5 is recommended. A free area of at least 2 times the flue area satisfies this
recommendation, without testing.
4.6.4 Ice formation
A rain cap subject to ice formation shall have an overlap of at least 50 mm greater than the chimney
outer dimension in all directions.
5 Testing, assessment and sampling methods
5.1 Mechanical resistance and stability
5.1.1 General
The rain cap shall be mounted according to the manufacturer's instructions on the top of a test
assembly supported.
5.1.2 Compressive strength
5.1.2.1 Test assembly
The rain cap shall be mounted according to the manufacturer's instructions on a simulated chimney top
supported (see Figure 1).
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SIST EN 16475-7:2016+A1:2020
EN 16475-7:2016+A1:2020 (E)
Key
1 rain cap
2 chimney
3 sand bag
Figure 1 — Example of a test assembly for compressive strength
5.1.2.2 Procedure
Measure the f
...
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