Roofing System

Application: Given its weight, on a building where there was this system of covers. An evaluation by a structural engineer may be appropriate.

This system has already proven its effectiveness. Commonly referred to as ‘asphalt and gravel,’ this type of roofing generally consists of perforated bituminous felts or fiberglass felts alternated in hot asphalt The waterproofing complex is protected by the addition of gravel in hot bitumen.

Advantages: Cost, durability (20-25 years), wind resistance, easy maintenance.

Disadvantages: Weight, odor during application.

Application: Undoubtedly the most popular, it adapts to almost any type of building.

The elastomeric membrane consists of membranes made of asphalt added with a styrene-butadiene-styrene (SBS) polymer and reinforced with a glass veil, non-woven polyester, or a composite reinforcement. Modified bitumen membranes are installed in two layers, and the top layer is covered with granules.

Advantages: Durability (25-30 years), low maintenance.

Disadvantages: Cost, professional maintenance required, monitor for water accumulations.

Application: High-rise buildings or those exposed to wind, rooftop terraces, green roofs.

These membranes are only used for inverted system specifications.

Typically used in waterproofing projects, hot-applied rubberized bitumen membranes are installed directly on the concrete deck and under the insulation. The system is usually protected by a gravel ballast, patio tiles, a rooftop terrace, and/or a green roof.

Advantages: Wind resistant, durability (25-30 years), low maintenance

Disadvantages: More complicated visual inspections and repairs, weight of the ballast, the structure must be evaluated by an expert.

Application: PVC membranes are membranes whose overlaps are hot-air weldable The membranes are made of polyvinyl chloride and are part of the thermoplastic single-ply membrane family. Their properties are enhanced by a polyester fabric or fiberglass reinforcement encapsulated between the PVC layers. They are usually white or very pale in color.

Advantages: Durability, fire protection, cold and clean installation

Disadvantages: Single-layer system, thermographic inspection required to detect leaks.

Application: TPO membranes are made of a polyolefin sheet and are part of the thermoplastic single-ply membrane family. Their properties are enhanced by a durable polyester fabric encapsulated in the membrane’s polymer. They are usually white or very pale in color.

Advantages: Cost-effective, low thermal radiation and high reflectivity

Disadvantages: Single-layer system, thermographic inspection required to detect leaks.

Application: EPDM membranes are made of ethylene propylene diene monomer (EPDM) and are typically black in color. EPDM membranes are very flexible single layers. The membrane can be mechanically fastened, loosely laid, or fully adhered.

Advantages: Cost-effective

Disadvantages: Single-layer system, thermographic inspection required to detect leaks.