tecnalia determination of dimensonal stability · 4 tecnalia report no.: 057987-2-a (m2) page 2 /...

Maintenance guideTechnical especification2018

TECNALIA DETERMINATION OF DIMENSONAL STABILITY2020

TECNALIATECNALIA

Testing information

TECNALIA DETERMINATION OF DIMENSONAL STABILITY

3

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 1 / 19

TECNALIA RESEARCH & INNOVATION Área Anardi, 5 E-20730 Azpeitia (Gipuzkoa)

T 902 760 020 T +34 946 430 850 (International calls)

Sede Social / Headquarters Parque Científico y Tecnológico de Bizkaia C/Geldo, Edificio 700 E-48160 Derio (Bizkaia) (Spain)

REPORT Nº 057987-2-a (M2)

CUSTOMER WOOD MANNERS, S.L. (GRATO PARQUET)

CONTACT PERSON Alberto del Río

ADDRESS C/ Josefina de la Maza, 4 39012 SANTANDER

OBJECT Determination of dimensional Stability

TESTED SAMPLE Multiplayer Parquet flooring

RECEPTION DATE 24.02.2016

TEST DATE 25.02.2016 / 10.03.2016 / 13.04.2016 / 11.05.2016

DATE OF ISSUANCE 18.05.2016

DATE OF ISSUANCE (M1) 22.06.2016

DATE OF ISSUANCE (M2) 11.07.2016

Blanca Ruiz de Gauna Chief building materials characterization laboratory Technology Services Division

* This report cancels and replaces 057987-2 (M1) report. The reason for this modification is that we have found an error unit in Table of reference 4.

* In case of a lawsuit, the original Spanish version shall be taken as reference.

* Results of this report concern, only and exclusively to the tested material.

* This report may not be reproduced without the express permission of Foundation TECNALIA R & I, except when it is full.

Raz

ón S

ocia

l / F

UN

DA

CIÓ

N T

EC

NA

LIA

RE

SE

AR

CH

& IN

NO

VA

TIO

N N

º F-6

9 R

egis

tro d

e Fu

ndac

ione

s de

l Gob

iern

o V

asco

CIF

G48

9757

67

Firmado digitalmente por: BLANCAESTHER RUIZ DE GAUNA REYFecha y hora: 11.07.2016 11:19:45

4

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 2 / 19

1. CHARACTERISTICS OF THE SAMPLES Foundation Tecnalia R&I received on 24.02.2016 from “WOOD MANNERS, S.L. (GRATO PARQUET)” multilayer flooring parquet samples referenced as:

Ref. 1: Two layers 6/14 (width 190 mm) Ref. 2: Three layers 4/12/4 (width 230 mm) Ref. 3: Two layers 4/12 (width 230 mm) Ref. 4: Three layers 4/9/3 (width 390 mm) Ref. 5: Three layers 4/12/4 (width 390 mm)

Photography nº1, nº2, nº3 and nº4 - Detail of samples received

5

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 3 / 19

2. CONDUCTED TESTS At the request of the customer, the rehearsal to be done to the samples is:

Determination of the dimensional stability according to the UNE-EN 1910:2013 “Wooden floor - parquet flooring, and wood panelling for walls and ceilings”

3. TEST Determination of the dimensional stability according to the UNE-EN 1910:2013

“Wooden floor - parquet flooring, and wood panelling for walls and ceilings” Preparation of tests specimen Specimens are the pieces of flooring taken at the time of preparation of the first supply, they are entire elements, that is to say, without any changes. Ten specimens have been tested, randomly obtained among all the specimens received. Specimen conditioning Before specific climate exposure, the specimens to test are conditioned in a temperature and humidity controlled room to about 20 degrees and 65 % HR to reach the hygroscopic balance. Once the tests specimen done, the established measures are taken regarding dimensions and deformations.

6

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 4 / 19

The following specimens are exposed to a specific humid climate (23º C and 85 % HR) during 4 weeks and the measurements are taken again. Once the measures are noted, the specimens are exposed to dry climate (23º C and 30 % HR) during 4 weeks and subsequently the established measures are taken. The accumulated dimensional variations related are calculated by applying the following formula in each direction:

iD

dD

hD

h18

100dcr

dcr Dimensional accumulated related variation (%), given two decimal places Di Measure after the initial conditioning (mm) Dd Measure after dry environment exposure (mm) Dh Measure after wet environment exposure (mm) The measurements taken are crowning/cupping, face bending, and edge bending where the absolute average values are recorded and their related value based on the length and/or width of the tested specimen:

- Crowning/Cupping: The average absolute value of the crowning/cupping is related to the average absolute value of the width for each climate.

- Face bending: The average absolute value of the face bending is related to the average absolute value of the length for each climate.

- Edge bending: The average absolute value of the edge bending is related to the average absolute value of the length for each climate.

At the same time, an extra plank has been introduced in each cycle, for determining moisture content in each climate exposure. This moisture content is determined according to the following standard:

7

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 5 / 19

Determination of the moisture content by the drying oven technique according to

the regulation UNE-EN 13183-1:2002 ERRATUM:2003 / AC:2004 A specimen which includes the section for each piece is taken. The sample has to have 20 mm minimum thickness in the fiber direction. Samples are weighed after their collecting. Afterwards they are dried at temperature (103±2)ºC, until obtaining the difference of mass less than 0,1 %, between two successive weighing in an interval of 2 horas. The samples are weighed after being dried by oven technique and the Moisture Content is calculated by the following formula:

100m

mmW0

01

m1 mass of the sample before the drying (gr) m0 mass of the anhydrous sample (gr) W moisture content (%) The result is expressed with approximation of 0.1%.

8

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 6 / 19

4. RESULTS “The expanded uncertainty of measurement is obtained by multiplying the typical uncertainty of measurement by the coverage factor k = 2, for a normal distribution, which corresponds to a probability of approximately 95% coverage. Determination of the dimensional stability according to the UNE-EN 1910:2013

“Wooden floor - parquet flooring, and wood panelling for walls and ceilings” The results obtained are showed in the tables below:

Multilayer parquet flooring Ref. 1: Two layers 6/14 (width 190 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Lenght Width Thickness

1 0,08 0,35 0,98

2 0,06 0,30 0,69

3 0,03 0,38 1,66

4 0,07 0,19 1,52

5 0,08 0,29 1,61

Average value 0,06 0,30 1,29

Standard deviation 0,02 0,07 0,43

Coefficient variation (%) 36,37 23,79 33,65

9

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 7 / 19

Multilayer parquet flooring Ref. 1: Two layers 6/14 (Width 190 mm)

Reference

Test tube

Absolute deformations (mm)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,20 0,50 -0,06 2,55 5,00 0,75 0,25 0,25 0,25

2 0,18 0,51 0,03 3,20 5,15 0,70 0,20 0,25 0,20

3 0,09 0,35 0,05 5,55 3,55 9,70 0,25 0,25 0,30

4 0,20 0,48 0,10 2,00 3,40 0,40 0,20 0,25 0,30

5 0,21 0,00 0,10 3,75 9,30 0,90 0,25 0,25 0,25

Average value 0,18 0,37 0,03 3,41 5,28 2,49 0,23 0,25 0,26

Standard Deviation 0,05 0,22 0,07 1,37 2,39 4,03 0,03 0,00 0,04

Coefficient variation (%) 29,01 58,60 238,5 40,07 45,20 162,03 11,91 0,00 16,09

Relative value (%) 0,09 0,19 0,01 0,19 0,29 0,14 0,01 0,01 0,01

Multilayer parquet flooring Ref. 1: Two layers 6/14 (Width 190 mm / 7 ½")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,008 0,020 -0,002 0,100 0,197 0,030 0,010 0,010 0,010

2 0,007 0,020 0,001 0,126 0,203 0,028 0,008 0,010 0,008

3 0,004 0,014 0,002 0,219 0,140 0,382 0,010 0,010 0,012

4 0,008 0,019 0,004 0,079 0,134 0,016 0,008 0,010 0,012

5 0,008 0,000 0,004 0,148 0,366 0,035 0,010 0,010 0,010

Average value 0,007 0,015 0,001 0,134 0,208 0,098 0,009 0,010 0,010

Standard Deviation 0,002 0,009 0,003 0,054 0,094 0,159 0,001 0,000 0,002

Coefficient variation (%) 29,01 58,6 238,5 40,07 45,2 162,03 11,91 0 16,09

Relative value (%) 0,09 0,19 0,01 0,19 0,29 0,14 0,01 0,01 0,01

10

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 8 / 19

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm)

Reference

Test Tube

Dimensional accumulated relative variation (%)

Lenght Width Thickness

1 0,07 0,19 1,34

2 0,08 0,25 1,40

3 0,08 0,24 1,48

4 0,08 0,21 1,18

5 0,05 0,21 1,01

Average value 0,08 0,22 1,28

Standard deviation 0,01 0,02 0,19

Coefficient variation (%) 17,25 11,14 14,64

11

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 9 / 19

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm)

Reference

Test Tube

Absolute deformations (mm)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,00 0,10 -0,41 0,40 0,40 -0,60 0,20 0,20 0,25

2 0,03 0,08 -0,35 0,60 3,15 -1,70 0,25 0,25 0,20

3 0,35 0,48 0,04 0,60 0,15 -0,20 0,20 0,20 0,25

4 0,18 0,40 -0,30 0,15 0,60 -1,40 0,25 0,25 0,25

5 0,32 0,00 -0,22 0,60 2,20 -0,20 0,25 0,25 0,25

Average value 0,17 0,21 -0,26 0,47 1,30 -0,82 0,23 0,23 0,24

Standard Deviation 0,16 0,21 0,18 0,20 1,31 0,69 0,03 0,03 0,02

Coefficient variation (%) 92,94 101,23 -68,34 42,29 100,70 -84,67 11,91 11,91 9,32

Relative value (%) 0,08 0,09 0,11 0,03 0,07 0,05 0,01 0,01 0,01

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm / 9")

Reference

Test Tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,000 0,004 -0,016 0,016 0,016 -0,024 0,008 0,008 0,010

2 0,001 0,003 -0,014 0,024 0,124 -0,067 0,010 0,010 0,008

3 0,014 0,019 0,002 0,024 0,006 -0,008 0,008 0,008 0,010

4 0,007 0,016 -0,012 0,006 0,024 -0,055 0,010 0,010 0,010

5 0,013 0,000 -0,009 0,024 0,087 -0,008 0,010 0,010 0,010

Average value 0,007 0,008 -0,010 0,019 0,051 -0,032 0,009 0,009 0,009

Standard Deviation 0,006 0,008 0,007 0,008 0,052 0,027 0,001 0,001 0,001

Coefficient variation (%) 92,94 101,23 -68,34 42,29 100,7 -84,67 11,91 11,91 9,32

Relative value (%) 0,08 0,09 0,11 0,03 0,07 0,05 0,01 0,01 0,01

12

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 10 / 19

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,13 0,19 1,15

2 0,10 0,18 1,22

3 0,08 0,19 1,14

4 0,11 0,23 1,33

5 0,07 0,24 1,90

Average value 0,10 0,21 1,35

Standard deviation 0,02 0,03 0,32

Coefficient variation (%) 22,32 12,64 23,66

13

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 11 / 19

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm)

Reference

Test tube

Absolute deformation (mm)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,16 0,43 -0,30 0,22 1,60 -3,70 0,30 0,25 0,25

2 0,18 0,68 -0,25 0,60 2,50 -0,15 0,25 0,25 0,25

3 0,10 0,40 -0,45 0,80 1,75 -0,10 0,25 0,25 0,30

4 0,15 0,48 -0,47 0,30 1,65 -0,10 0,20 0,25 0,30

5 0,05 0,00 -0,41 0,15 0,90 -2,90 0,25 0,25 0,30

Average value 0,13 0,40 -0,38 0,41 1,68 -1,39 0,25 0,25 0,28

Standard Deviation 0,05 0,25 0,10 0,28 0,57 1,77 0,04 0,00 0,03

Coefficient variation (%) 40,66 62,24 -25,48 66,58 33,84 -127,09 14,14 0,00 9,78

Relative value (%) 0,06 0,17 0,16 0,02 0,09 0,08 0,01 0,01 0,02

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm / 9")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,006 0,017 -0,012 0,009 0,063 -0,146 0,012 0,010 0,010

2 0,007 0,027 -0,010 0,024 0,098 -0,006 0,010 0,010 0,010

3 0,004 0,016 -0,018 0,031 0,069 -0,004 0,010 0,010 0,012

4 0,006 0,019 -0,019 0,012 0,065 -0,004 0,008 0,010 0,012

5 0,002 0,000 -0,016 0,006 0,035 -0,114 0,010 0,010 0,012

Average value 0,005 0,016 -0,015 0,016 0,066 -0,055 0,010 0,010 0,011

Standard Deviation 0,002 0,010 0,004 0,011 0,022 0,070 0,002 0,000 0,001

Coefficient variation (%) 40,66 62,24 -25,48 66,58 33,84 -127,09 14,14 0 9,78

Relative value (%) 0,06 0,17 0,16 0,02 0,09 0,08 0,01 0,01 0,02

14

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 12 / 19

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,08 0,34 0,93

2 0,10 0,26 1,53

3 0,04 0,34 4,99

4 0,08 0,21 1,09

5 0,09 0,21 1,78

Average value 0,08 0,27 2,06

Standard deviation 0,02 0,06 1,67

Coefficient variation (%) 27,51 23,70 80,95

15

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 13 / 19

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm)

Reference

Test tube

Absolute deformations (mm)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,23 2,30 -1,08 0,40 0,60 -0,90 0,05 0,30 0,50

2 0,73 2,88 0,21 0,40 0,80 -0,40 0,05 0,10 0,60

3 0,45 2,76 0,26 0,40 1,15 -0,20 0,15 0,25 0,25

4 0,50 2,37 -0,21 0,40 0,60 -0,35 0,00 0,20 0,20

5 0,28 0,00 -0,47 0,25 0,45 0,15 0,10 0,20 0,30

Average value 0,44 2,06 -0,26 0,37 0,72 -0,34 0,07 0,21 0,37

Standard Deviation 0,20 1,18 0,55 0,07 0,27 0,38 0,06 0,07 0,17

Coefficient variation (%) 45,17 57,17 -214,5 18,13 37,59 -111,71 81,44 35,32 46,42

Relative value (%) 0,11 0,53 0,07 0,02 0,04 0,02 0,00 0,01 0,02

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm / 15 ⅓")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,009 0,091 -0,043 0,016 0,024 -0,035 0,002 0,012 0,020

2 0,029 0,113 0,008 0,016 0,031 -0,016 0,002 0,004 0,024

3 0,018 0,109 0,010 0,016 0,045 -0,008 0,006 0,010 0,010

4 0,020 0,093 -0,008 0,016 0,024 -0,014 0,000 0,008 0,008

5 0,011 0,000 -0,019 0,010 0,018 0,006 0,004 0,008 0,012

Average value 0,017 0,081 -0,010 0,015 0,028 -0,013 0,003 0,008 0,015

Standard Deviation 0,008 0,046 0,022 0,003 0,011 0,015 0,002 0,003 0,007

Coefficient variation (%) 1,778 57,17 -214,5 18,13 37,59 -111,71 81,44 35,32 46,42

Relative value (%) 0,004 0,53 0,07 0,02 0,04 0,02 0 0,01 0,02

16

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 14 / 19

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,10 0,21 1,27

2 0,07 0,21 2,08

3 0,08 0,13 1,63

4 0,06 0,26 1,56

5 0,10 0,21 1,36

Average value 0,08 0,21 1,58

Standard deviation 0,02 0,05 0,32

Coefficient variation (%) 22,19 22,83 19,98

17

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 15 / 19

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm)

Reference

Test tube

Absolute deformations (mm)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,26 0,93 0,13 0,70 2,45 0,20 0,10 0,30 0,20

2 0,20 1,28 0,29 0,15 1,00 -0,25 0,10 0,20 0,30

3 0,25 0,90 0,14 0,25 1,00 -0,90 0,05 0,10 0,30

4 0,23 1,03 0,19 0,10 0,10 -0,90 0,20 0,20 0,20

5 0,67 0,00 0,27 0,15 1,00 -0,90 0,25 0,30 0,20

Average value 0,32 0,83 0,20 0,27 1,11 -0,55 0,14 0,22 0,24

Standard Deviation 0,19 0,49 0,07 0,25 0,84 0,50 0,08 0,08 0,05

Coefficient variation (%) 60,72 58,71 36,75 91,29 76,07 -91,81 58,68 38,03 22,82

Relative value (%) 0,08 0,21 0,05 0,02 0,06 0,03 0,01 0,01 0,01

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm / 15 ⅓")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,010 0,037 0,005 0,028 0,096 0,008 0,004 0,012 0,008

2 0,008 0,050 0,011 0,006 0,039 -0,010 0,004 0,008 0,012

3 0,010 0,035 0,006 0,010 0,039 -0,035 0,002 0,004 0,012

4 0,009 0,041 0,007 0,004 0,004 -0,035 0,008 0,008 0,008

5 0,026 0,000 0,011 0,006 0,039 -0,035 0,010 0,012 0,008

Average value 0,013 0,033 0,008 0,011 0,044 -0,022 0,006 0,009 0,009

Standard Deviation 0,007 0,019 0,003 0,010 0,033 0,020 0,003 0,003 0,002

Coefficient variation (%) 60,72 58,71 36,75 91,29 76,07 -91,81 58,68 38,03 22,82

Relative value (%) 0,08 0,21 0,05 0,02 0,06 0,03 0,01 0,01 0,01

18

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 16 / 19

Note 1: The references are the following: Ref. 1: Two layers 6/14 (width 190 mm - 7½’’) – 6mm French Oak Top layer + 14mm birch exterior marine grade plywood. Ref.2: Three layers 4/12/4 (width 230 mm – 9’’) – 4mm French oak + 12mm birch exterior marine grade plywood + 4mm french oak Ref.3: Two layers 4/12 (width 230 mm - 9’’) – 4mm French oak top wear layer + 12mm birch exterior marine grade plywood Ref.4: Three layers 4/9/3 (width 390 mm - 15½’’) – 4mm French oak top wear layer + 9mm birch exterior marine grade plywood + 4mm French oak Ref. 5: Three layers 4/12/4 (width 390 mm - 15½’’) – 4mm French oak top wear layer + 14mm birch exterior marine grade plywood + 4mm French oak *All boards are 6’ long - 1800 mm Note 2 After the cycles subjected to test specimens, presence of cracks or splits or any other defect does not have been appreciated in any of the studied references. The specimens have not suffered more alteration than the dimensional changes associated with temperature and humidity cycles.

19

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 17 / 19

Note:

20

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 18 / 19

Determination of the moisture content by the drying oven technique according to

the regulation UNE-EN 13183-1:2002 ERRATUM:2003 / AC:2004 The obtained results are the following:

Reference Moisture (%)

(After conditioning)

(After wet climate)

(After dry climate)

Multilayer parquet flooring Ref. 1: Two layers 6/14 (width 190 mm) 10,5 12,4 8,8

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm) 10,3 11,5 8,7

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm) 10,2 14,0 8,5

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm) 10,7 11,7 8,4

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm) 10,1 11,4 8,2

Average value 10,4 12,2 8,5

Uncertainty (k=2) 0,3 1,0 0,3

Standard Deviation 0,3 1,1 0,3

Coefficient variation (%) 2,5 9% 3,0%

21

TECNALIA

REPORT No.: 057987-2-a (M2) PAGE 19 / 19

PHOTOGRAPHS OF THE TESTS

Photographs nº5, nº6 y nº7 - Samples during the tests

22

TECNALIA

REPORT No.: 061051-a PAGE 1 / 20

TECNALIA RESEARCH & INNOVATION Área Anardi, 5 E-20730 Azpeitia (Gipuzkoa)

T 902 760 020 T +34 946 430 850 (International calls)

Sede Social / Headquarters Parque Científico y Tecnológico de Bizkaia C/Geldo, Edificio 700 E-48160 Derio (Bizkaia) (Spain)

REPORT Nº 061051-a

CUSTOMER WOOD MANNERS, S.L. (GRATO PARQUET)

CONTACT PERSON Alberto del Río

ADDRESS C/ Josefina de la Maza, 4 39012 SANTANDER

OBJECT Determination of dimensional Stability

TESTED SAMPLE Multiplayer Parquet flooring

RECEPTION DATE 24.02.2016

TEST DATE 15.06.2016 / 01.07.2016

DATE OF ISSUANCE 08.07.2016

Blanca Ruiz de Gauna Chief building materials characterization laboratory Technology Services Division

* In case of a lawsuit, the original Spanish version shall be taken as reference.

* Results of this report concern, only and exclusively to the tested material.

* This report may not be reproduced without the express permission of Foundation TECNALIA R & I, except when it is full.

Raz

ón S

ocia

l / F

UN

DA

CIÓ

N T

EC

NA

LIA

RE

SE

AR

CH

& IN

NO

VA

TIO

N N

º F-6

9 R

egis

tro d

e Fu

ndac

ione

s de

l Gob

iern

o V

asco

CIF

G48

9757

67

Firmado digitalmente por: BLANCAESTHER RUIZ DE GAUNA REYFecha y hora: 08.07.2016 13:59:35

23

TECNALIA

REPORT No.: 061051-a PAGE 2 / 20

1. CHARACTERISTICS OF THE SAMPLES Foundation Tecnalia R&I received on 24.02.2016 from “WOOD MANNERS, S.L. (GRATO PARQUET)” multilayer flooring parquet samples referenced as:

Ref. 1: Two layers 6/14 (width 190 mm) Ref. 2: Three layers 4/12/4 (width 230 mm) Ref. 3: Two layers 4/12 (width 230 mm) Ref. 4: Three layers 4/9/3 (width 390 mm) Ref. 5: Three layers 4/12/4 (width 390 mm)

Photography nº1, nº2, nº3 and nº4 - Detail of samples received

24

TECNALIA

REPORT No.: 061051-a PAGE 3 / 20

2. CONDUCTED TESTS At the request of the customer, the rehearsal to be done to the samples is:

Determination of the dimensional stability according to the UNE-EN 1910:2013 “Wooden floor - parquet flooring, and wood panelling for walls and ceilings”

3. TEST Determination of the dimensional stability according to the UNE-EN 1910:2013

“Wooden floor - parquet flooring, and wood panelling for walls and ceilings” From the report number 057987, previously done (completed in May of 2016), it has submitted to the parquet strips under request at an extra cycle humidity of 25% RH and 23°C for about 15 days. Subsequently, measures have linked this dry cycle with 057987 measurements report. The accumulated dimensional variations related are calculated by applying the following formula in each direction:

iD

dD

hD

h18

100dcr

dcr Dimensional accumulated related variation (%), given two decimal places Di Measure after the initial conditioning (mm) Dd Measure after dry environment exposure (mm) Dh Measure after wet environment exposure (mm) The measurements taken are crowning/cupping, face bending, and edge bending where the absolute average values are recorded and their related value based on the length and/or width of the tested specimen:

- Crowning/Cupping: The average absolute value of the crowning/cupping is related to the average absolute value of the width for each climate.

- Face bending: The average absolute value of the face bending is related to the average absolute value of the length for each climate.

- Edge bending: The average absolute value of the edge bending is related to the average absolute value of the length for each climate.

25

TECNALIA

REPORT No.: 061051-a PAGE 4 / 20

4. RESULTS “The expanded uncertainty of measurement is obtained by multiplying the typical uncertainty of measurement by the coverage factor k = 2, for a normal distribution, which corresponds to a probability of approximately 95% coverage. Determination of the dimensional stability according to the UNE-EN 1910:2013

“Wooden floor - parquet flooring, and wood panelling for walls and ceilings” The results obtained are showed in the tables below: Dry cycle (30% HR)

Multilayer parquet flooring Ref. 1: Two layers 6/14 (width 190 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Lenght Width Thickness

1 0,08 0,35 0,98

2 0,06 0,30 0,69

3 0,03 0,38 1,66

4 0,07 0,19 1,52

5 0,08 0,29 1,61

Average value 0,06 0,30 1,29

Standard deviation 0,02 0,07 0,43

Coefficient variation (%) 36,37 23,79 33,65

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 1: Two layers 6/14 (width 190 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Lenght Width Thickness

1 0,09 0,61 0,22

2 0,08 0,57 0,36

3 0,05 0,49 2,30

4 0,11 0,41 1,60

5 0,11 0,49 2,40

Average value 0,09 0,51 1,38

Standard deviation 0,02 0,08 1,04 Coefficient variation (%) 26,24 15,40 75,66

26

TECNALIA

REPORT No.: 061051-a PAGE 5 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 1: Two layers 6/14 (Width 190 mm / 7 ½")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,008 0,020 -0,002 0,100 0,197 0,030 0,010 0,010 0,010

2 0,007 0,020 0,001 0,126 0,203 0,028 0,008 0,010 0,008

3 0,004 0,014 0,002 0,219 0,140 0,382 0,010 0,010 0,012

4 0,008 0,019 0,004 0,079 0,134 0,016 0,008 0,010 0,012

5 0,008 0,000 0,004 0,148 0,366 0,035 0,010 0,010 0,010

Average value 0,007 0,015 0,001 0,134 0,208 0,098 0,009 0,010 0,010

Standard Deviation 0,002 0,009 0,003 0,054 0,094 0,159 0,001 0,000 0,002

Coefficient variation (%) 29,01 58,6 238,5 40,07 45,2 162,03 11,91 0 16,09

Relative value (%) 0,09 0,19 0,01 0,19 0,29 0,14 0,01 0,01 0,01

27

TECNALIA

REPORT No.: 061051-a PAGE 6 / 20

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 1: Two layers 6/14 (Width 190 mm / 7 ½")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,008 0,020 -0,002 0,100 0,197 0,370 0,010 0,010 0,010

2 0,007 0,020 -0,004 0,126 0,203 0,370 0,008 0,010 0,010

3 0,004 0,014 -0,011 0,219 0,140 0,370 0,010 0,010 0,002

4 0,008 0,019 -0,010 0,079 0,134 0,370 0,008 0,010 0,012

5 0,008 0,000 -0,011 0,148 0,366 0,006 0,010 0,010 0,008

Average value 0,007 0,015 -0,007 0,134 0,208 0,297 0,009 0,010 0,008

Standard Deviation 0,002 0,009 0,004 0,054 0,094 0,163 0,001 0,000 0,004

Coefficient variation (%) 1,142 2,307 -2,357 1,578 1,780 2,157 0,469 0,000 1,803

Relative value (%) 0,090 0,190 0,090 0,190 0,290 0,420 0,010 0,010 0,010

28

TECNALIA

REPORT No.: 061051-a PAGE 7 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm)

Reference

Test Tube

Dimensional accumulated relative variation (%)

Lenght Width Thickness

1 0,07 0,19 1,34

2 0,08 0,25 1,40

3 0,08 0,24 1,48

4 0,08 0,21 1,18

5 0,05 0,21 1,01

Average value 0,08 0,22 1,28

Standard deviation 0,01 0,02 0,19

Coefficient variation (%) 17,25 11,14 14,64 Dry cycle (25% HR)

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm)

Reference

Test Tube

Dimensional accumulated relative variation (%)

Lenght Width Thickness

1 0,07 0,42 2,53

2 0,10 0,35 2,89

3 0,11 0,45 3,84

4 0,11 0,35 3,86

5 0,05 0,33 2,88

Average value 0,09 0,38 3,20

Standard deviation 0,03 0,05 0,61

Coefficient variation (%) 28,91 14,36 19,11

29

TECNALIA

REPORT No.: 061051-a PAGE 8 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm / 9")

Reference

Test Tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,000 0,004 -0,016 0,016 0,016 -0,024 0,008 0,008 0,010

2 0,001 0,003 -0,014 0,024 0,124 -0,067 0,010 0,010 0,008

3 0,014 0,019 0,002 0,024 0,006 -0,008 0,008 0,008 0,010

4 0,007 0,016 -0,012 0,006 0,024 -0,055 0,010 0,010 0,010

5 0,013 0,000 -0,009 0,024 0,087 -0,008 0,010 0,010 0,010

Average value 0,007 0,008 -0,010 0,019 0,051 -0,032 0,009 0,009 0,009

Standard Deviation 0,006 0,008 0,007 0,008 0,052 0,027 0,001 0,001 0,001

Coefficient variation (%) 92,94 101,23 -68,34 42,29 100,7 -84,67 11,91 11,91 9,32

Relative value (%) 0,08 0,09 0,11 0,03 0,07 0,05 0,01 0,01 0,01

30

TECNALIA

REPORT No.: 061051-a PAGE 9 / 20

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 2: Three layers 4/12/4 (width 230 mm / 9")

Reference

Test Tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,000 0,004 -0,006 0,016 0,016 0,094 0,008 0,008 0,010

2 0,001 0,003 -0,012 0,024 0,124 0,010 0,010 0,010 0,010

3 0,014 0,019 0,002 0,024 0,006 -0,008 0,008 0,008 0,008

4 0,007 0,016 -0,014 0,006 0,024 -0,049 0,010 0,010 0,010

5 0,013 0,000 0,004 0,024 0,087 0,094 0,010 0,010 0,008

Average value 0,007 0,008 -0,007 0,019 0,051 0,028 0,009 0,009 0,009

Standard Deviation 0,006 0,008 0,008 0,008 0,052 0,064 0,001 0,001 0,001

Coefficient variation (%) 92,940 101,23 -107,6 42,290 100,70 226,02 11,910 11,91 0,469

Relative value (%) 0,080 0,090 0,080 0,030 0,070 0,040 0,010 0,010 0,010

31

TECNALIA

REPORT No.: 061051-a PAGE 10 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,13 0,19 1,15

2 0,10 0,18 1,22

3 0,08 0,19 1,14

4 0,11 0,23 1,33

5 0,07 0,24 1,90

Average value 0,10 0,21 1,35

Standard deviation 0,02 0,03 0,32

Coefficient variation (%) 22,32 12,64 23,66

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,13 0,34 2,33

2 0,10 0,35 2,68

3 0,11 0,32 2,43

4 0,11 0,35 2,47

5 0,10 0,37 2,68

Average value 0,11 0,34 2,52

Standard deviation 0,01 0,02 0,16 Coefficient variation (%) 10,70 5,58 6,16

32

TECNALIA

REPORT No.: 061051-a PAGE 11 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm / 9")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,006 0,017 -0,012 0,009 0,063 -0,146 0,012 0,010 0,010

2 0,007 0,027 -0,010 0,024 0,098 -0,006 0,010 0,010 0,010

3 0,004 0,016 -0,018 0,031 0,069 -0,004 0,010 0,010 0,012

4 0,006 0,019 -0,019 0,012 0,065 -0,004 0,008 0,010 0,012

5 0,002 0,000 -0,016 0,006 0,035 -0,114 0,010 0,010 0,012

Average value 0,005 0,016 -0,015 0,016 0,066 -0,055 0,010 0,010 0,011

Standard Deviation 0,002 0,010 0,004 0,011 0,022 0,070 0,002 0,000 0,001

Coefficient variation (%) 40,66 62,24 -25,48 66,58 33,84 -127,09 14,14 0 9,78

Relative value (%) 0,06 0,17 0,16 0,02 0,09 0,08 0,01 0,01 0,02

33

TECNALIA

REPORT No.: 061051-a PAGE 12 / 20

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 3: Two layers 4/12 (width 230 mm / 9")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,006 0,017 -0,019 0,009 0,063 -0,126 0,010 0,010 0,008

2 0,007 0,027 -0,016 0,024 0,098 -0,010 0,010 0,010 0,010

3 0,004 0,016 -0,021 0,031 0,069 -0,010 0,008 0,010 0,010

4 0,006 0,019 -0,024 0,012 0,065 -0,035 0,010 0,010 0,010

5 0,002 0,000 -0,019 0,006 0,035 -0,096 0,010 0,010 0,009

Average value 0,005 0,016 -0,020 0,016 0,066 -0,056 0,002 0,000 0,001

Standard Deviation 0,002 0,010 0,003 0,011 0,022 0,053 0,557 0,000 0,367

Coefficient variation (%) 40,660 62,240 -14,90 66,580 33,840 -95,400 0,010 0,010 0,010

Relative value (%) 0,060 0,170 0,220 0,020 0,090 0,080 0,250 0,250 0,200

34

TECNALIA

REPORT No.: 061051-a PAGE 13 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,08 0,34 0,93

2 0,10 0,26 1,53

3 0,04 0,34 4,99

4 0,08 0,21 1,09

5 0,09 0,21 1,78

Average value 0,08 0,27 2,06

Standard deviation 0,02 0,06 1,67

Coefficient variation (%) 27,51 23,70 80,95

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,08 0,47 2,26

2 0,10 0,47 3,49

3 0,08 0,47 7,43

4 0,10 0,30 2,72

5 0,09 0,51 3,01

Average value 0,09 0,44 3,78

Standard deviation 0,01 0,08 2,09 Coefficient variation (%) 7,68 18,71 55,22

35

TECNALIA

REPORT No.: 061051-a PAGE 14 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm / 15 ⅓")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,009 0,091 -0,043 0,016 0,024 -0,035 0,002 0,012 0,020

2 0,029 0,113 0,008 0,016 0,031 -0,016 0,002 0,004 0,024

3 0,018 0,109 0,010 0,016 0,045 -0,008 0,006 0,010 0,010

4 0,020 0,093 -0,008 0,016 0,024 -0,014 0,000 0,008 0,008

5 0,011 0,000 -0,019 0,010 0,018 0,006 0,004 0,008 0,012

Average value 0,017 0,081 -0,010 0,015 0,028 -0,013 0,003 0,008 0,015

Standard Deviation 0,008 0,046 0,022 0,003 0,011 0,015 0,002 0,003 0,007

Coefficient variation (%) 1,778 57,17 -214,5 18,13 37,59 -111,71 81,44 35,32 46,42

Relative value (%) 0,004 0,53 0,07 0,02 0,04 0,02 0 0,01 0,02

36

TECNALIA

REPORT No.: 061051-a PAGE 15 / 20

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 4: Three layers 4/9/3 (width 390 mm / 15 ⅓")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,009 0,091 -0,051 0,016 0,024 -0,008 0,002 0,012 0,006

2 0,029 0,113 -0,031 0,016 0,031 -0,010 0,002 0,004 0,006

3 0,018 0,109 -0,022 0,016 0,045 -0,010 0,006 0,010 0,008

4 0,020 0,093 -0,159 0,016 0,024 -0,010 0,000 0,008 0,008

5 0,011 0,000 -0,039 0,010 0,018 -0,010 0,004 0,008 0,004

Average value 0,017 0,081 -0,060 0,015 0,028 -0,009 0,003 0,008 0,006

Standard Deviation 0,008 0,046 0,056 0,003 0,011 0,001 0,002 0,003 0,002

Coefficient variation (%) 45,170 57,170 -92,95 18,130 37,590 -9,320 81,440 35,320 26,150

Relative value (%) 0,110 0,530 0,390 0,020 0,040 0,010 0,000 0,010 0,010

37

TECNALIA

REPORT No.: 061051-a PAGE 16 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,10 0,21 1,27

2 0,07 0,21 2,08

3 0,08 0,13 1,63

4 0,06 0,26 1,56

5 0,10 0,21 1,36

Average value 0,08 0,21 1,58

Standard deviation 0,02 0,05 0,32

Coefficient variation (%) 22,19 22,83 19,98

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm)

Reference

Test tube

Dimensional accumulated relative variation (%)

Length Width Thickness

1 0,11 0,26 4,21

2 0,10 0,26 3,89

3 0,10 0,26 2,57

4 0,07 0,38 3,35

5 0,13 0,21 2,90

Average value 0,10 0,27 3,38

Standard deviation 0,02 0,06 0,68 Coefficient variation (%) 21,40 23,69 20,01

38

TECNALIA

REPORT No.: 061051-a PAGE 17 / 20

Dry cycle (30% HR)

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm / 15 ⅓")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,010 0,037 0,005 0,028 0,096 0,008 0,004 0,012 0,008

2 0,008 0,050 0,011 0,006 0,039 -0,010 0,004 0,008 0,012

3 0,010 0,035 0,006 0,010 0,039 -0,035 0,002 0,004 0,012

4 0,009 0,041 0,007 0,004 0,004 -0,035 0,008 0,008 0,008

5 0,026 0,000 0,011 0,006 0,039 -0,035 0,010 0,012 0,008

Average value 0,013 0,033 0,008 0,011 0,044 -0,022 0,006 0,009 0,009

Standard Deviation 0,007 0,019 0,003 0,010 0,033 0,020 0,003 0,003 0,002

Coefficient variation (%) 60,72 58,71 36,75 91,29 76,07 -91,81 58,68 38,03 22,82

Relative value (%) 0,08 0,21 0,05 0,02 0,06 0,03 0,01 0,01 0,01

39

TECNALIA

REPORT No.: 061051-a PAGE 18 / 20

Dry cycle (25% HR)

Multilayer parquet flooring Ref. 5: Three layers 4/12/4 (width 390 mm / 15 ⅓")

Reference

Test tube

Absolute deformations (inch)

Cupping Face bending Edge bending

Acond. Wet Dry Acond. Wet Dry Acond. Wet Dry

1 0,010 0,037 -0,014 0,028 0,096 0,010 0,004 0,012 0,008

2 0,008 0,050 -0,027 0,006 0,039 -0,004 0,004 0,008 0,004

3 0,010 0,035 -0,026 0,010 0,039 -0,051 0,002 0,004 0,010

4 0,009 0,041 -0,014 0,004 0,004 -0,031 0,008 0,008 0,006

5 0,026 0,000 0,015 0,006 0,039 -0,020 0,010 0,012 0,004

Average value 0,013 0,033 -0,013 0,011 0,044 -0,019 0,006 0,009 0,006

Standard Deviation 0,007 0,019 0,017 0,010 0,033 0,024 0,003 0,003 0,003

Coefficient variation (%) 60,72 58,71 -126,6 91,29 76,07 -122,96 58,68 38,03 40,75

Relative value (%) 0,080 0,210 0,090 0,020 0,060 0,030 0,010 0,010 0,010

40

TECNALIA

REPORT No.: 061051-a PAGE 19 / 20

Note 1: The references are the following: Ref. 1: Two layers 6/14 (width 190 mm - 7½’’) – 6mm French Oak Top layer + 14mm birch exterior marine grade plywood. Ref.2: Three layers 4/12/4 (width 230 mm – 9’’) – 4mm French oak + 12mm birch exterior marine grade plywood + 4mm french oak Ref.3: Two layers 4/12 (width 230 mm - 9’’) – 4mm French oak top wear layer + 12mm birch exterior marine grade plywood Ref.4: Three layers 4/9/3 (width 390 mm - 15½’’) – 4mm French oak top wear layer + 9mm birch exterior marine grade plywood + 4mm French oak Ref. 5: Three layers 4/12/4 (width 390 mm - 15½’’) – 4mm French oak top wear layer + 14mm birch exterior marine grade plywood + 4mm French oak *All boards are 6’ long - 1800 mm Note 2 After the cycles subjected to test specimens, presence of cracks or splits or any other defect does not have been appreciated in any of the studied references. The specimens have not suffered more alteration than the dimensional changes associated with temperature and humidity cycles.

41

TECNALIA

REPORT No.: 061051-a PAGE 20 / 20

Note:

WOOD MANNERS S.L

C/ RUFINO PEÓN Nº 1739300 CAMPUZANO, CANTABRIA

(SPAIN)

www.gratoparquet.com