Soil On Roof For Insulation

If we take insulation to be a bit more specific say the most commonly used material fiberglass that s about r3 inch for fiberglass or if we believed the soil r value rule of thumb about dirt that s about 24 3 about r 0 8 for arbitrary dirt insulation value.

Soil on roof for insulation.

A sedum green roof is not quite as good an insulator as a wildflower green roof. Deep layers of substrate growing medium are extremely heavy. It is most commonly used as roof insulation because of it s compatibility with hot bitumens but is also used as wall insulation. Keep in mind that an intensive green roof uses more soil so it won t need the same insulation as other types of green roofs.

The deeper the growing medium on your green roof the better it will insulate. Pour on the bags of gravel your looking to get just a single layer cover over the entire roof 2. After ensuring you have proper water management in place up to 20 inches of soil or growing medium is added to the roof followed by the plants and trays. It s r value range of 5 6 6 5 for 1 of material is the highest of the primary rigid insulation types hence it s highest cost.

Some sources we researched assert that one inch of insulation is equal to about two feet or more of soil. To hold them up you need a really beefy building with a well supported roof. Draining and root stopping 1. Roll over the root membrane.

Brush into place 3.