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.
The footprint 3 of this home is around 24'x45', and the roof is a very simple design without a lot of valleys or angles. If the roof has a moderate pitch of 6/12 (meaning that the roof rises six inches every 12 it runs), we can assume that the roof will take up approximately 1300 to 1500 square feet.