A roof should be inspected annually but could be more than that. One should inspect his roof for damage after high winds, hail, or other events that could damage structures.
weekly
Local mechanics or even places such as AutoZone O'Reilys etc. will inspect and often offer an estimate on fixes or repairs if they are needed for you vehicle.
Should be yearly
Any and all fire extinguishers should be inspected at least once a month. If you live in an area of severe hot or cold temperatures, it is wise to inspect them more often.
if you can see the wood ceiling joint then it is time to replace and you should check every year or so.
Inspect at least once a year, base service on what you see.
You should inspect the pads and rotors at least twicw a year and change pads if they are worn down to 2mm.
GE models are very reliable and do not require repairs often, and they also come with great warranties.
The factory recomends to inspect at 110,000 miles. I recomend every 30,000 miles.
The duties of an automotive technician can be anything from keeping simple shop records to major engine overhauls. Often times, they will inspect automotive equipment to determine which repairs are needed. Automotive technicians are also responsible for upkeep and repair of shop equipment.
there is no silver bullet in these cases. the engine computer needs to be scanned to find where the problem lies, and repairs made based on those findings.
Depends on how many stops you make each year. There is no set time or mileage. You inspect them periodically and replace as necessary.