In the forties of the 20th century, in the post-war France, the production of euro-slate began, it is also ondulin. Pressed cellulose, dyed with vibrant saturated colors and soaked with bituminous thermal resins, has been a surprisingly successful alternative to carcinogenic asbestos cement sheets. Due to the low price, durability, manufacturability of the device, roofs made of euro-slate have gained popularity. Architects and builders rated ondulin. Reviews of developers note its positive qualities.
Advantages of ondulin:
- The light weight of the material allows roofing in excess of slate or metal;
- Moisture resistance;
- Speed and convenience of the device (material is cut with a hacksaw);
- Environmental friendliness, counteraction to microorganisms.
But not everything is undeniably positive in Euro-slate, it has its drawbacks:
- Combustibility;
- Reduced strength, reduced stiffness under the influence of the summer sun, fragility in the cold, requires the exclusion of walking on the roof .;
- The inability to perform snow retention on the roof entails restrictions on the use of ondulin on flat and not enough steep roofs.
- The manufacturer gives a 15-year warranty.
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