Latest CBA Newsletter - Concrete Block Association
Latest CBA Newsletter - Concrete Block Association
Latest CBA Newsletter - Concrete Block Association
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TECHNICAL REPORT<br />
Construction Products Regulation (CPR)<br />
The CPR comes into effect on<br />
1 July 2013 and after that date<br />
all construction products which<br />
have harmonised European<br />
Standards need to:<br />
Have a Declaration of Performance<br />
(DoP)<br />
Be CE marked<br />
Masonry units are covered by the EN 771<br />
series of harmonised standards so every<br />
product manufactured to it needs to have<br />
a DoP and be CE marked from that date.<br />
as possible as you are not supposed to<br />
give information on the listed essential<br />
characteristics elsewhere if you do not give<br />
it in the DoP. For essential characteristics<br />
not required either for the intended<br />
application or for use in the UK you can<br />
state NPD (No Performance Determined).<br />
You can, of course, give additional product<br />
information demanded by the market in<br />
your technical literature but not in the<br />
DoP. The DoP refers just to your legal<br />
obligations under the CPR.<br />
The list of Essential Characteristics was<br />
drawn up based on whether there was a<br />
regulatory requirement to provide a value<br />
in at least one EU member state. With so<br />
many EU member states it is therefore a<br />
long list and covers properties which are<br />
not required by UK regulations but are<br />
often supplied to meet market demands.<br />
DECLARATION OF PERFORMANCE (Example)<br />
No. (your product code)<br />
Although strictly not yet possible under<br />
the terms of the CPR, it is generally agreed<br />
that, in the UK your DoPs can be on a<br />
website (but a customer can ask for a<br />
paper copy).<br />
The EN 771 series of standards are in the<br />
process of being amended to:<br />
Make them CPR compliant<br />
Give examples of DoPs and CE marks<br />
Allow abbreviated DoPs and CE<br />
marking to be used<br />
Both BPCF and The Construction Products<br />
<strong>Association</strong> (CPA) are in the process<br />
of separately negotiating with Trading<br />
Standards to obtain agreements for<br />
their members to provide CE marking<br />
electronically. Any agreement reached<br />
would only be applicable to supply in<br />
the UK and Trading Standards will only<br />
accept electronic CE marking of products<br />
supplied by members of BPCF or CPA as<br />
appropriate.<br />
These arrangements have not yet been<br />
finalised. If you would prefer to provide<br />
CE marking electronically that leaves the<br />
final preparation of your CE marking<br />
arrangements in limbo until an agreement<br />
is reached. However, there are no major<br />
issues with DoPs so these should now be<br />
prepared.<br />
The following example is based on the<br />
simplified example in the draft amended<br />
Annex ZA to EN 771-3.<br />
1. Product type: (your product code)<br />
2. Identification: (your product code)<br />
3. Intended use: in walls, columns and partitions<br />
4. Manufacturer:<br />
AnyCo SA, Any Street 1<br />
B-1050 Brussels, Belgium<br />
Email: anyco.sa@provider.be<br />
5. Authorised Representative: Not applicable<br />
6. AVCP System 4<br />
7. Harmonized standard: EN 771-3<br />
8. ETA: Not relevant<br />
9. Declared performance<br />
Essential characteristics<br />
Dimensions (1)<br />
Configuration (1)<br />
Compressive<br />
strength(1)<br />
Dimensional stability (1)<br />
Length<br />
Width<br />
Height<br />
Tolerance category<br />
Shape and features<br />
Group according to<br />
EN 1996-1-1 (EC6)<br />
Mean compressive<br />
strength<br />
Direction of load<br />
Unit category<br />
Performance<br />
440 mm<br />
100 mm<br />
215 mm<br />
D1<br />
NPD<br />
Group 1<br />
7.3 N/mm²<br />
Perpendicular to bed faces<br />
Category II<br />
0.5mm/m (measured value)<br />
Bond strength (1) Shear bond strength 0.15N/mm 2 (tabulated value)<br />
Reaction to fire (2)<br />
Water absorption (3)<br />
Water vapour permeability (4)<br />
Flexural bond strength<br />
NPD<br />
A1 (Commission Decision<br />
2000/605/EC)<br />
< 3 g/m² (measured value)<br />
5/15 (tabulated value)<br />
Harmonized<br />
technical<br />
specification<br />
EN 771-3:<br />
2013<br />
You have to assign a number to each<br />
DoP and there should be a DoP for each<br />
product but you could, for example,<br />
group all widths of a given strength of<br />
a product range under one DoP. It is<br />
recommended that you use your existing<br />
product code as your DoP number.<br />
The example and your copy of BS EN<br />
771-3 should be sufficient to enable you to<br />
complete your DoPs but some explanatory<br />
notes are given.<br />
The DoP is essentially a formatted data<br />
sheet. You should complete it as fully<br />
Direct airborne sound<br />
insulation (5)(in end<br />
conditions)/ [Density<br />
and configuration]<br />
Gross density 1900 kg/m 3<br />
Configuration; dimensions<br />
and tolerances<br />
Thermal resistance/ or density and configuration (6)<br />
Durability against freeze/thaw<br />
Dangerous substances<br />
See configuration<br />
0.90 λ 10, dry, unit<br />
(tabulated value)<br />
(1) for units intended to be used in elements subject to structural requirements<br />
(2) for units intended to be used in elements subject to fire requirements<br />
(3) for units intended to be used in damp proof courses or in external elements with an exposed face<br />
(4) for units intended to be used in external elements<br />
(5) for units to be used in elements subject to acoustic requirements<br />
(6) for units intended to be used in elements subject to thermal insulation requirements<br />
Pass<br />
NPD<br />
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