are found on steep roofs (slope of more than 2 in 12). Rafters are typically 2 by 4's, 2 by 6's, 2 by 8's or 2 by 10s. The rafters support the sheathing and typically run from the roof peak down to the eaves. The rafters carry the dead load of the sheathing and roofing material, and the live loads above. Rafters may also carry the ceiling loads below on cathedral ceilings.
Camphor spirit is a solution of alcohol and camphor, a strong-smelling compound found in a specific species of native Asian trees. Camphor spirit -- also known as spirit of camphor -- is used by many alternative medicine practitioners to treat a number of ailments, internally and externally.owever, the use of camphor spirit may be linked to a number of side effects and should not be used without a doctor's consent by people with certain medical conditions. Spirit of camphor is not approved by health care professionals as a scientifically viable treatment for any medical condition.
Camphor is somewhat toxic when ingested, which is why the makers of Vicks warn that it is for external use only. Some visitors recall a home-made remedy for sore throats and coughs. While some found onion syrup delicious, others hated it. Others have had success with thyme tea, with or without star anise.