In the modern construction market such variety of roofs that sometimes will difficult decide on material selection. All the known tile and slate are persistently driven recently out of the market by new material - ondulin which becomes more and more popular.
Instruction
1. Ondulin is the material representing the easy, but extremely rigid corrugated composite made of the organic fibers saturated with bitumen under strong pressure. Its emergence is preceded by fifty years of researches, as a result creators of material position it as easy, cost-effective product which provides weather proofing, sound and thermal isolation, even in the most extreme weather conditions. Actually manufacturers claim that their product has no shortcomings.
2. Manufacturers of ondulin poorly understand the product because of its novelty. For example, even in professional descriptions it is not specified that material can badly contact to other construction or finishing mixes, for example, with bitumen. If the roof is laid in such combination, most likely, in several years your roof will be in big black spots. Fitters will recolour to you roof after examination, guarantee period will not expire yet. Next time will suggest to paint. As the majority of paints on acrylic basis badly reacts to bitumen, the vicious circle will turn out.
3. Ondulin perfectly resists to cold and heat, but with various reservations, when it comes to guarantee replacement of roof. If imposing layer, for example, not 3, but 4 leaves at low temperatures, then, most likely, say to you that the roof was made not according to specifications. It badly maintains big temperatures, promptly gets out of color and shape.
4. Easy on the weight ondulin it is not especially strong in practice. If the house is in extreme weather conditions, then fallen to tree can lead to the fact that it is necessary to change all roof, unlike the same slate or tile which are steadier, and when replacing only couple of sheets can be required.
5. Despite the seeming long guarantee of the producer, usually give 10, sometimes 15 years, trying to be distinguished to these from other materials, ondulin has many "montazhy" nuances, and at installation of roof it is necessary to demand from fitters to do roof, according to regulations of the manufacturer that subsequently guarantee inquiries have been satisfied.
6. In general, so far the ondulinovy roof has more negative reviews, than positive. Consumers abuse material for fast loss of color, form, low durability and come back to those roofing materials which are tested with time.