Application areas
Water- and gasproofing of substructures of buildings and engineering structures.
Description of material
Technoelast ALFA is a polyester material combined with a special gasproofing aluminum screen, with polymer-bitumen binder applied on both sides. The metal screen in Technoelast ALFA provides for a high level of protection of underground premises against widespread dangerous inert gases, such as radon and methane.
Technoelast ALFA can be used in all climatic zones (as determined in Construction Codes and Regulation (SNiP) 23-01-99*).
Method of application
The material is welded on a prepared surface using a gas burner. Material application: according to the Manual for Designing and Installation of Water- and Gas Insulation for Underground Parts of Buildings and Structures Using Technoelast ALFA Material.
Storage
Store vertically, in a place protected from direct sunlight.
Waterproofing warranty — 10 years
Service life — 25-30 years
Specifications:
| Property | Technoelast ALFA | |
| Thickness, mm (±0.1 mm) | 4,0 | |
| Mass of 1 m2, kg, (±0.25 kg) | 4,95 | |
| Longitudinal/transverse breaking load, N, not less than | polyester | 600/400 |
| Bend point on R=25 mm and R=10 mm beam, °C, no more than | -25 | |
| Heat endurance, °С, not less than | 100 | |
| Vapor permeability indicator, kg/(m.s.Pa) | 0 | |
| Protective covering type | on the top | film without logo |
| on welded-on side | film with logo | |
| Length / width, m | 10х1 |