Box vents are not mechanical vents and work better when used with soffit ventilation. They're designed to work with open attics and do not need to be placed close to roof ridges to work optimally. They are also known as low profile vents because they are static and installed over a hole cut into the roof.
Stone Mountain is made of igneous granite which is composed of quartz, feldspar, microcline and muscovite, with smaller amounts of biotite and tourmaline. Embedded in the gran â¦ ite are xenoliths or pieces of foreign rocks entrained in the magma. 13 people found this useful. T.E. Woodwose.
Sandstone is formed from sediments of small grains, usually quartz. The individual grains may be visible, and can be loosely cemented, often rubbing off in your hand. Limestone usually is composed of finer grained material of calcite origin, such as sea shells, or precipitates of calcite origin.Limestone will effervesce in slightly acidic solutions such as vinegar because of the chemical reaction of calcium carbonate with acid.Sandstones will not have this reaction. think you have it confused, dolomite and limestones are not the same thing: Limestone is composed of calcite or calcium carbonate, CaCO3, and dolostone is composed of dolomi â¦ te or calcium magnesium carbonate, Ca,Mg(CO3).