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.
When dealing with a roofer, it is good to know how much area needs to be covered, and this calculator will enable you to do that. A few tips: To figure the size of your roof, see our square footage calculator. In roofing terminology, a square is 100 square feet.Composition shingles (asphalt or fiberglass) come in bundles that cover 1/3 square. Roofing comes in rolls 3 feet wide and 36 feet long, for a coverage of about 1 square.When installing roofing over bare wood, roofing felt -- often called tar paper -- is laid down first.hen dealing with a roofer, it is good to know how much area needs to be covered, and this calculator will enable you to do that. A few tips: To figure the size of your roof, see our square footage calculator. In roofing terminology, a square is 100 square feet.