Feather Edge Butt Joints

[jhp]

Hi All

Am looking to re-roof my lean to with feather edge boards, but the lengths in which they come aren't as long as I'd like so I need to join them in the middle. I have a supporting joist running down the centre so the butt ends will have something to fasten to.

Is it possible to use some sort of capping strip over the top of the join? I'm concerned that water will come in where they meet up.

Thanks for any advice

John

 

[catlad]

What makes you think these will make a water tight roofing material.

 

[jhp]

Fair comment.

My query is more along the lines of damage limitation!

 

[palaceray]

I have not heard of any sort of capping for this, i would suggest brown mastic

 

[ladylola]

Put a lead "soaker" underneath the joint. It'll keep the water out and won't look as awful as a gob of mastic.