I want to use IKO Super Shed Felt for my 10 ft x 8ft shed. What size clout nails should I use? I will also need to overlap the felt, how much overlap should I use and is it necessary to use adhesive?

Clout nails should be 15mm large head clout nails. Overlaps will typically be minimum 50mm and will depend upon the slope of the roof. On shallow sloped roof, we would suggest the overlap is increased to 75mm. Lap adhesive also provides extra waterproofing security to the lap so it it recommended to use.