When it comes to roofing, waterproofing is a crucial consideration. Combo roof waterproofing is a technique that involves applying a waterproofing membrane to a roof, followed by the installation of a green roof or rooftop garden. This technique helps protect the roof from water damage, adds a layer of insulation, and improves energy efficiency. Here’s what you need to know about combo roof waterproofing.

Benefits of combo roof waterproofing:

Combo roof waterproofing offers several benefits, including:

Protection against water damage: By creating a waterproof layer, combo roof waterproofing helps protect your roof from water damage caused by rain, snow, and moisture.

Improved energy efficiency: Green roofs or rooftop gardens can help reduce heat absorption, lowering the energy needed to cool your home or building.

Enhanced aesthetics: Rooftop gardens can provide an aesthetically pleasing view and help promote biodiversity in urban environments.

Increased property value: Combo roof waterproofing can increase the value of your property by adding usable space while also providing the benefits above.

Installation process:

Combo roof waterproofing involves a few steps:

· Roof preparation: The existing roof must be cleared of debris, and any damaged areas should be repaired before applying the waterproofing membrane.

· Waterproofing membrane: The waterproofing membrane is applied to the roof, covering any potential areas of water ingress.

· Drainage layer: A drainage layer is installed over the waterproofing membrane to ensure proper water flow.

· Filter layer: A filter layer is installed over the drainage layer to prevent soil and debris from clogging the drainage system.

· Growing medium: A growing medium is added over the filter layer, providing the plant foundation.

· Plants: Finally, the desired plants are added to the growing medium, creating a green roof or rooftop garden.

Materials used:

The materials used for combo roof waterproofing can vary but typically include the following:

· Waterproofing membrane: PVC and TPO are the most commonly used materials for the waterproofing membrane.

· Drainage layer: A geotextile drainage layer made of polyethylene or polypropylene creates a space for water to flow freely.

· Filter layer: The filter layer is typically made of non-woven geotextile material.

· Growing medium: The growing medium should be lightweight, providing a stable base for growing plants. Common materials include lightweight soil blends, expanded clay pellets, and mineral wool.