Often it s a leaky screw hole or improperly seated sections of roofing.
Garden shed roof leaking.
If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures.
Depending on how much you care about the shed you may need to remove the old felt dry the osb sheets on the roof out and re felt when they are dry.
Except that it relies on hex head screws with thick rubber washers.
Metal roofing is impervious.
Look out for discoloration.
You ll need to check for any discoloration to the structure particularly stains and darker patches.
With that being said your shed metal roof can fail.
Check the sides of the shed for dark patches or streaks as this may indicate dripping or running water.
Although proper installation methods will help.
Otherwise just felt over the top.
The current weather is a test of any shed so you need to picka dry day buy some quality felt and refelt the roof using new galvanised felt nails.
Here s a quick overview of how to fix a metal roof on a shed.
Some roof leaks are tough to locate.
To check for leaks you ll need to look out for discoloration on the inside roof and walls of the shed.
A local gardening firm re covered it but didn t seal the overlaps.
If a leaking roof is left alone it can cause mold to spread throughout the entire structure destroying the shed and all of your belongings.
The new shed roof is replaced using external osb and then tony bitumens the roof sealing the weather out and making the osb waterproof.
The felt on out 7 x 7 ft pent roof shed lasted about 7 years before one of the overlaps started letting in water partly along the line of the overlap.
I decided to get it re felted and chose a heavy grade that would see me out.
Any type of shed whether it is made from wood metal or a combination of wood and metal sheets will eventually leak as weathering occurs over time.
Sometimes the water shows up at a ceiling spot distant from the leak.
This a video about my brother and i fixing a shed made of plastic that i purchased 3 years ago and the roof warped because of the hot florida sun.