In the distant past, there was no fast and easy to use nano product that could be cost-effective as well. This led to the widespread use of solvents and petroleum-based products, such that most people felt that if a surface is not fully black and not covered with tar paper or bituminous waterproofing membrane has not sealed yet!!! This mentality continued until years ago!
It is an undeniable fact that tar paper and bituminous waterproofing membrane were the only available options in those years for insulating and sealing surfaces, but it should be noted that nano sealing and resistant materials have emerged in the building insulation industry for more than three decades.
Since 2000, NSG Co. as the first and the sole provider of nanotechnology products in Iran has managed to familiarize numerous clients with these products and their advantageous applications by implementing more than hundreds of sealing projects and holding various technical conferences.
Creating confidence and undertaking the implementation was the main work order of the company in the first ten years of activities to convince engineers and specialists that the company’s products are able to seal and strengthen the structures without environmental problems and effects.
Main disadvantages of tar paper and bituminous waterproofing membrane
Corrosion after 6 months (since the date of production) due to lack of proper storage (they should be kept vertically at a temperature of 5°c to 35°c), short service life (approximately 15 years), deformation and protrusion compared to the surface by the restoration of the damaged area, decomposition due to UV rays, decomposition at high temperature and converting to flammable coal, deformation against pressure and solvents, spoilage over time, the rupture due to possible building subsidence.
The service life of the bituminous waterproofing membrane is less than 4 years on average, and its repair is associated with many executive problems and significant costs. In addition, these materials may create workshop hazards as well as environmental pollution. Other disadvantages of these materials are as follows:
The possibility of growth of moss, bacteria and microbes, lack of adhesion of mortar to bituminous waterproofing membrane such that installation of mesh and fences will be required before cement laying, the strong tendency of bituminous waterproofing membrane and tar paper to develop fire and produce toxic gases during a fire that it may cause suffocation of the people who are at the site, the high risk of burns and similar accidents, bad smell and the production of smoke and toxic gases that may cause blackness, subsidence, and other technical problems on the structure surface, loosening the underlying layers, production of toxic substances by reacting to the water of the drinking water tanks and the creation of severe cracks.
All these disadvantages show that those traditional products lack the necessary standards for being applied in the insulation layers and therefore, they are much less consumed today.
Sealing and strengthening the structures with NSG-Z90, NSG-B70, and NSG-N50 not only increases the quality, accuracy, and speed of the work, but at the same time decreases the cost of operation of insulation in general.