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.
A roofâs size is the largest cost factor, Hood says. Roofers charge per roofing square. A 10-by-10-foot (100 square feet) area is equal to one roofing square. âFor example, if weâre working on a roof that is 3,000 square feet, itâs broken down into 30 squares,â Allen says.