The high-quality synthetic waterproofing membrane
RENOLIT ALKORTEC is a high-quality synthetic waterproofing membrane based on EVA. In addition to the advantages it offers as a single-layer synthetic waterproofing membrane, RENOLIT ALKORTEC has a number of product-specific characteristics:
Cost-effectiveness
- Savings in the installation costs: one single 30 m² roll replaces 6 bituminous rolls in a 2 layer system
- Savings in structure: the waterproofing is more than 5 times lighter than the so-called “traditional” multilayer (bituminous) solutions
- Quick and easy installation by means of hot air
- Can be used with standard unplasticized PVC roof accessories (outlets, rooflights, pipes, ...).
Durability
- 25 years of expertise with EVA based roofing membranes
- Possibility of extended product warranties.
Fire resistance
- Good fire resistance performance
- No naked flame during installation
- Self-extinguishing waterproofing membrane.
Physical properties
- High chemical resistance
- Bitumen-resistant
- Resistant to root penetration (EN 13948)
- Good dynamic and static perforation resistance
- Vapour permeable.
Aesthetic
- Homogeneous weld seams
- Smooth appearance without folds on all kinds of roof shapes.
Environment-friendly
- Low environmental impact (NFP 01-010: 0.17 kg equivalent CO₂/m²/year)
- The RENOLIT ALKORTEC range is part of the ROOFCOLLECT® program
- Recyclable.
General
- Production in an ISO 9001/14001 certified company
- Complies with the European Building Regulations via CE marking.
The guarantee of quality
All our waterproofing membranes and roofing systems are thoroughly tested internally and externally for usability and durability. By combining the results of these tests with a level of know-how that has been developed for over 45 years, we can offer our customers high-quality and high-tech products.
All the products in the RENOLIT ALKORTEC range which are sold and installed according to our latest instructions have a 10-year product warranty. Depending on the project, an extension of the warranty to 15 or 20 years is available upon request.
Longer material warranties can also be provided for projects in combination with PV systems. For more details, please contact the technical team of RENOLIT.
Our technical and commercial team is at your service every day to advise and assist you with your particular project. Also, we can provide help with:
- Building physics calculations
- Wind load calculations
- PV and solar projects
- Technical and commercial training
- Specific project monitoring
- The drafting of specifications.
Vapour permeability of the RENOLIT ALKORTEC roofing membrane
The RENOLIT ALKORTEC waterproofing membrane is the ideal solution for the refurbishment of an existing roofing membrane. If the defective roofing membrane and the underlying roof structure are not completely compromised by penetrating moisture, the RENOLIT ALKORTEC waterproofing membrane can be installed over the old roofing system, without increasing the risk of condensation. The high vapour permeability of the roofing membrane ensures that any moisture that may be present in the existing roof structure evaporates. This will result in a considerable gain in time and money.
Bitumen compatible
The complete range of RENOLIT ALKORTEC roofing membranes is bitumen-resistant. When RENOLIT ALKORTEC membranes are installed on an existing bituminous membrane, there is no need to apply a separation layer. The direct contact with the bitumen will not be detrimental to the normal behaviour and service life of the waterproofing membrane. Because the RENOLIT ALKORTEC waterproofing membrane is bitumen-resistant, the polyester fleece-backed RENOLIT ALKORTEC A membrane can be used in a glued system, either with the RENOLIT ALKORPLUS adhesives or with bitumen.
A fleece-backed RENOLIT ALKORTEC A membrane is bonded to the roof by means of hot bitumen.
Ecological roofing systems
Pending general European regulations, the RENOLIT ALKORTEC roofing membrane is tested for environmental impact (“Démarche haute qualité environmentale”).
Recyclability
EVA can be recycled in the production process. This prevents waste of our valuable natural raw materials and helps protect the environment. Old EVA waterproofing membranes can be collected at the end of their service life and can be recycled into new raw material.
RENOLIT takes its environmental responsibility very seriously and is part of the ROOFCOLLECT® programme for the collection and recycling of roofing membranes.
Easy installation
RENOLIT ALKORTEC A – the all-round solution
Depending on the selected roofing system, the RENOLIT ALKORTEC A roofing membrane can be mechanically fastened, bonded or loose laid under ballast. With the RENOLIT ALKORTEC A roofing membrane, depending on the wishes of the client or architect, the roofer can offer a range of solutions to waterproof the roof with one single product. For the waterproofing of transverse seams, junction strips must be applied.
Bonded:
The polyester-fleece backing of the roofing membrane ensures that it can be perfectly bonded to many types of substrates.
Ballasted:
Because the RENOLIT ALKORTEC A roofing membrane is resistant to root penetration, a ballasted roofing system can be used for traditional ballast, paving slabs on support pads, large roof gardens, etc.
The polyester fleece offers an additional protection when the roofing membrane is installed on an uneven substrate.
Mechanically fastened:
Taking into account higher pull-out values than those of other EVA-based membranes without polyester reinforcement, the RENOLIT ALKORTEC A membrane can also be fixed by means of mechanical fasteners.
RENOLIT ALKORTEC F
For over 40 years, our company has been a major player in the flat roof market. Especially in the market for industrial roofs, mechanically fastened systems are the most commonly used. The highest nail tear resistance is achieved by synthetic waterproofing membranes with polyester reinforcement. Fast and reliable installation is the key to this general market development. The RENOLIT ALKORTEC F roofing membrane is the ideal solution for roofs requiring a high-quality mechanically fastened waterproofing system.
Mechanically fastened:
The RENOLIT ALKORTEC F roofing membrane has a polyester reinforcement and is ideal for use with a mechanically fastened system.
Furthermore, this waterproofing membrane can be installed quickly and easily to produce a smooth roof surface.
For the fastening of solar panels on existing or new EVA roofs, the RENOLIT ALKORSOLAR system is the ideal solution.
This ultra-light fastening system ensures that the solar panels can be secured by means of mechanical fasteners but without perforating the roofing membrane.
Ballast:
Because the RENOLIT ALKORTEC waterproofing membrane is resistant to root penetration, a ballasted roofing system can be used for traditional ballast, paving slabs on support pads, extensive roof gardens, etc.
