by the Energy Saving Trust and Lucideon.
In 2018, proPERLA® products were independently tested by UKAS (United Kingdom Accreditation Service) accredited testing and analysis laboratory, Lucideon.
Lucideon’s world-leading laboratories scientifically and impartially tested our products to ensure they are fit for purpose and conform to regulations.
Lucideon constructed a single skin brick wall which was evenly split vertically into thirds with a 10 mm x 100 mm insulated expansion joint inserted to prevent heat transfer between each section.
One third of the wall was coated using ProPERLA Masonry Crème, the middle third was left untreated to act as a control and the final third was coated with ProPERLA Primer followed by ProPERLA Facade Coating.
A total of 9 thermocouples were positioned on each section of the wall to monitor the temperature; 3 were positioned on the front of the wall, 3 were positioned at the rear of the wall and 3 were placed at a depth of 50 mm within the body of the wall. Thermal imaging was also used.
To determine the long term performance of proPERLA wall coatings, the test wall frame was subjected to accelerated weathering correlating to 25 years exposure.
Placed within a hygrothermal chamber, the test wall panel was subjected to repeated heat-rain cycles followed by heat-cold cycles at controlled humidity to simulate naturally occurring conditions.
Result:
The uncoated bricks (the middle third) showed evidence of water penetration and significant soluble salt deposits/salt effloresence.</strong >
Quality Standard Passed:
EAD 090062-00-0404 – 25 year hygrothermal performance.
The thermal performance benefits of ProPERLA wall coatings were scientifically assessed.
Temperature readings were taken before, during and after the accelerated weathering test, using the 9 thermocouples across the test wall frame. Thermal images were also taken.
Results
Bricks coated with ProPERLA were more energy efficient than uncoated ones.
Thermocouples placed on the rear face of the walls showed that during the hygrothermal rain cycle, the uncoated wall showed, on average, an increase of 6⁰C of heat loss in comparison to the coated walls.
Thermal images taken of the rear of the wall during the rain cycles clearly show the temperature differential between coated and uncoated bricks (see image).
There was no change in thermal insulating properties of the coated bricks after completion of the accelerated weathering test demonstrating long term performance.
Quality Standard Passed
EAD 040083-00-0404 – External thermal insulation composite
Testing was conducted to determine the effect ProPERLA wall coatings have on the ability of the bricks to allow moisture to escape.
15 specimens (5 coated in ProPERLA Masonry Crème, 5 coated in ProPERLA Facade Coating and 5 uncoated) along with a further 15 specimens of each coating type cut from the test wall panel after it was subjected to accelerated weathering, were submitted for the determination of water vapour resistance using the wet-cup method.
The samples were then stored in an environmental chamber controlled at 23⁰C ± 2⁰C and 50% ± 5% relative humidity and weighed at specific time intervals.
Results:
Neither ProPERLA Masonry Crème nor ProPERLA Facade Coating adversely effected the water vapour resistance of the brick substrate.
The uncoated wall had a mean SD value of 0.57, the same brick substrate when coated with ProPERLA Masonry Crème and ProPERLA Facade Coating gave SD values of 0.56 and 0.60 respectively, showing they had little effect on the breathability of the brick substrate.
Quality Standard Passed
BS EN ISO 7783:2011 – Water vapour diffusion
The super hydrophobic (highly water repellent) properties of the coatings were put to the test.
The test specimens used to analyse and measure breathability were also used for moisture content testing using Lucideon’s In House Testing Method PR 27:1998.
Each specimen was sealed on 4 sides, leaving the front face exposed. Specimens were weighed before being placed in water, front face submerged. Specimens were then remeasured.
All samples were then placed in a dryer and weighed once more.
The moisture content was then calculated.
Results
The bricks coated with ProPERLA were able to repel water and reduce absorption.
Moisture content tests revealed that the uncoated bricks showed an increase in moisture by 11.12%, whereas the bricks coated in ProPERLA Masonry Crème only showed an increase of 0.41% and 0.74% for PropERLA Facade Coating.
This equates to reduced water absorption of 96.3%. for ProPERLA Masonry Crème and 93.4% for ProPERLA Facade Coating.
Quality Standard Passed
BS EN ISO 12572 – Water Vapour Resistance
EAD 090062-00-0404
25 year hygrothermal performance
EAD 040083-00-0404
External thermal insulation composite
BS EN ISO 7783:2011
Water vapour diffusion
In 2021, following previous testing conducted by Lucideon, ProPERLA Water Repellent & RENOTEC Roof Coating were also tested in a 25 year accelerated weather process.
The tests were conducted to:
Resultados.
To determine the long term performance of ProPERLA roof coatings, the test roof frame was subjected to accelerated weathering correlating to 25 years exposure.
Placed within a hygrothermal chamber, the test roof panel was subjected to repeated heat-rain cycles followed by heat-cold cycles at controlled humidity to simulate naturally occurring conditions.
Results.
On completion of the weathering test, the test sample showed no evidence of deterioration such as cracking, delamination or water penetration, demonstrating a 25 year performance of both RENOTEC Roof Coating & ProPERLA Water Repellent.
In the water impermeability test, weathering had no adverse effects with the samples. which remained impervious to water after the 25 year weathering cycles.
The breathability of treated tiles was also found to be consistent with untreated tiles during the water vapor permeability test.
transpirabilidad de las tejas tratadas también resultó ser consistente con las tejas no tratadas durante la prueba de permeabilidad al vapor de agua.
EAD 090062-00-0404
25-year hygrothermal performance
BS 539-1:2005
Waterproofing
BS EN ISO 12572:2016
Water vapour permeability
