Lanco Roof and surface Membrane Sealant (Elastomeric Silicone - Acrylic based) for sealing surfaces in a monolithically way. Designed for concrete surfaces, metal, wood, asphalt membranes and EPDM. May be applied with roller, brush or spray - airless. 78% Solar reflectance. 90% Heat reduction.
Magma develops within the mantle or crust when the temperature-pressure conditions favor the molten state. Magma rises toward the Earth's surface when it is less dense than the surrounding rock and when a structural zone allows movement.
First, there is a definition we need to make. Just to keep things straight, geologists use the word  magma  for molten rock that is still underground, and the word  lava  once it has erupted onto the surface. Rocks in the mantle and the core are still hot from the formation of the Earth about 4.6 billion years ago. When the Earth formed, material collided at high speeds. These collisions generated heat (try clapping your hands together-they get hot) that heat became trapped in the Earth.