specifications. If your vehicle was originally charged with R12 refrigerant, for example, the oil type specified, 'mineral', will not apply. Additionally, General Motors issues Bulletin # 02-01-39-004B replacing PAG 150 oil with a lower viscocity oil.
The term square in reference to roofing materials refers to 100 square feet of roof area. One square of slate is the amount of slate that it takes to cover 100 square feet of roof area. A 10 foot x 10 foot section of roof would equal one square. So would a 4 foot x 25 foot section. Ditto for a 5 foot x 20 foot.
One of the most expensive costs of building a new home or remodeling an old home is the cost of roofing. Roofing cost is based on the cost of roofing materials, roof pitch, and labor. Roofing is measured and estimated in squares. A square of roofing is the amount of roofing material required to cover 100 square feet (10 feet X 10 feet). That isnât as simple as it sounds when you have multiple roof pitches and dormers, unless you are a whiz in geometry.