how far apart should screws be placed ina metal roof
The Temple was built of stone. The roof (as far as I know) was of flat pieces of marble.
Rafters in typical residential construction are usually spaced 16 or 24 inches apart. The spacing will depend on the design of the roof, the load the roof needs to support, and local building codes.
They could be 16 or 24" on center. Check with a stud finder.
As with most things, variables will influence your outcome, such as wood type and weather encountered. In general the maximum distance between posts is 15'
Far apart.
Most truss systems are spaced 24 inches on center. Depending on the length, or load applied they will sometimes need to be spaced 16 inches on center. Trussed Rafters as advised by TRADA are now spaced at 600mm c/c.
This depends on several factors. 1) size of gutter 2) size of downspout 3) amount of roof area draining into gutter
Quite far apart I'd say. There is an ocean in between.
how far apart is the untied states from Algeria
Those with a signal booster or built in amp. Truthfully the roof mounts are far superior and dirt cheap so is better to go that route if you can.
Millions of light-years apart.