Green Roof Installers Grantham

Green Roof Installation FAQs

Do green roofs attract pests?

Green roofs, like any garden, can attract insects and other small wildlife. However, choosing appropriate plants and implementing regular maintenance practices, such as weeding and removing debris, can minimize pest problems. It's essential to monitor the roof for signs of pest infestation and address any issues promptly.

What is the purpose of a drainage layer in a green roof?

The drainage layer in a green roof system serves several important functions:

• Removing Excess Water: Allows excess water from rainfall or irrigation to drain away from the roof, preventing ponding and ensuring the plants don't become waterlogged.
• Providing Airflow: Creates air space between the waterproofing membrane and the growing medium, promoting air circulation and preventing the buildup of moisture.
• Protecting the Waterproofing Membrane: Helps to protect the waterproofing membrane from punctures or damage caused by rocks, roots, or other sharp objects in the growing medium.

Drainage layers can be made of various materials, such as gravel, expanded clay, or specialized drainage boards.

How do I maintain a green roof?

Green roofs require regular maintenance to thrive. The level of maintenance depends on the type of green roof system and the chosen plants. General maintenance tasks include:

• Watering: During dry periods, supplemental watering might be necessary, especially during the establishment phase of the plants.
• Fertilizing: Regular fertilization ensures the plants have the nutrients they need for healthy growth.
• Weeding: Remove any weeds that may sprout up in the growing medium.
• Pruning: Prune plants as needed to maintain their shape and prevent overgrowth.
• Inspection: Inspect the roof and drainage system regularly for any signs of leaks or blockages.

Consider a maintenance contract with your green roof installer or a landscaping company specializing in rooftop gardens to ensure proper care.

What is the environmental impact of green roofs?

Green roofs offer numerous environmental benefits:

• Reduced Urban Heat Island Effect: They lower urban temperatures by absorbing heat and reflecting sunlight.
• Improved Air Quality: Plants filter pollutants and produce oxygen.
• Stormwater Management: They decrease runoff and filter pollutants from rainwater.
• Biodiversity: They provide habitats for birds and insects.
• Reduced Energy Consumption: Improved insulation lowers reliance on heating and cooling systems.