Agriculture
Agriculture and Green Roof Felt
Nonwoven felt supports agriculture and green building. BIT wool felt works as a growing medium, a soil replacement that handles water well and holds up over time. This makes it a strong fit for green roofs and other planted systems.
Why wool felt works for green roofs
Wool can absorb up to 30% of its weight in water, which supports water flow and retention. A green roof is any roof or wall that is partly or fully covered with vegetation and a growing medium, planted over a waterproof membrane. In settings where soil is difficult to use, nonwoven wool felt provides a reliable alternative.
Frequently Asked Questions
What is green roof felt?
Green roof felt is a nonwoven wool felt used as a growing medium, or soil replacement, on roofs and walls that are covered with vegetation over a waterproof membrane.
Why use wool felt as a growing medium?
Wool can absorb up to 30% of its weight in water, which supports free water flow and retention for plants. It is also durable and lighter than soil, which suits green roof systems.
Benefits at a glance
- Water handling that supports plant health.
- A durable, lightweight alternative to soil.
- Made from natural wool fiber.
- Available in custom weights and densities.