Looking for a real review of SUBERTRES liquid cork facade coating
The advertisement promises quality decorative,
— easy to apply,
— water repellent and vapor permeable,
— heat-insulating and sound-absorbing,
— resistant to seawater and aggressive substances
— flame-retardant
— not afraid of moisture
Has anyone come across this? I would like to hear real reviews, not manufacturer's advertising.
Answers
Here is my house, covered with two layers of liquid cork.
Of the obvious disadvantages of technology – irregularities at the joints of the panels (I have a chip) and the beams of the floor at certain angles of light become a little noticeable. So far, it seems not critical. Only at certain times of day it comes through. We'll see. If it gets in the way of the eye – make edging boards between floors and in the corners
The material is really not bad. But personally, I have a couple of questions (opinions) on it.
1. Noticeably burns in the sun, in particular on the "pastel" colors, I noticed when I took apart the tides.
2. Apparently there is a problem with the consistency of the material, in particular I painted in the heat of 26-28 ° C, and constantly clogged tools, in a cooler temperature was clearly less of a problem.
Last year for the experiment I applied "liquid cork" on different surfaces: slate, "Ronila", foam, OSB, rusty pipe, brick, whitewashed wall, asphalt. All the samples were left outdoors for the winter. What can I say? Coating is very interesting and promising, but it's also not a panacea for all ills. Every base material has its moments. A huge plus is the method of application (spraying), it is cheap and good results in hard to reach places.
The first photo is a macro shot of the coating on OSB. It is applied in 2 layers. The thickness of the coating is 2-3 mm. The second photo is a fragment of a foam dome house, coated with a thin layer of mortar on the grid.
By the way, I did an experiment on water resistance. I sprayed liquid cork on the cloth and after it dried, poured water into the funnel. After a few days, no moisture was noticeable on the bottom. I also put the fabric in the freezer and observed if cracks appeared after several cycles of freezing and thawing and how it behaved on the fold while frozen.
Feedback on the results of 2 years of use. have a house of SIP-panels. On the sunny side there were cracks at the joints of the panels due to the thermal expansion of the wood. The other 3 sides are fine. Nothing critical, but the cracks at certain angles of light incidence are visible. So there are certain problems for wood (SIP or frame construction in particular).
This is probably the best roofing option for us for an EPS geodesic dome both in the way it is applied to the complex geometry and in the claimed characteristics of the coating. Well, and for the SIP panel house, the same excellent exterior coating.
Will the sheathing in the first season on the Sip-panels, insulation is needed as a damper, so that there were no cracks on the edge of the panels.
To test the elasticity of the joint, we applied liquid cork to two pieces of EPS, 50 mm thick, docked on the sides and put them in the freezer after they had dried completely. Immediately after the freezer, we bent the seam several times and stretched it. The coating did not crack and stretched sufficiently. Tested the possibility of applying liquid cork directly on the sheets of foam when insulating facades without reinforcing mesh (only grouting the joints). With CIP-panels is a bit easier, the bar, which is inserted into the joints of panels (with a sufficient number of screws that fasten the plate) does not give the cracks in the joints of the plates. Although the technology of assembling a house of such panels, it is recommended to leave a gap of 5 mm. Tested on a personal dacha house made of CIP. In the first winter, the house intentionally left without an external coating to check the behavior of the boards with significant temperature changes.
Experience with two cottages. The result is excellent. Beautiful texture, really insulates, eliminates dampness, mold. Environmentally friendly. Another plus is durability, doesn't crack, lays on almost any substrate.
