
Originally Posted by
Ben (TM) Fair point. You need to work out where the water is getting in. The guttering itself looks OK in the picture, so if it is not there, then maybe your roof is at fault.
Once you work that out - you need to fix it first, then go about repairing the crook weatherboards. You will easily get 3.5m lengths (you can get them up to 5.7's and should cost you about $2.50/m pre primed). If you can get away with no joins, then all the better. Looks better and less chances of a leak.
If there are a lot of boards that are knackered, you might as well to the lot. The only tricky bits will be around your pipes I would think. Start at the bottom and work your way up. You will want to check the weatherboard stops and the frame behind for evidence of rot as well and replace as neccessary.
All you will need is a decent saw capable of a good square cut, a hammer, 2" galvanised nails, a nail punch, a water lever (spirit level at a pinch), some putty to cover your nails and a tube of sealant like Silkaflex.