Firstly thanks for your time reading this.
The situation is this. I have a gable end of a barn in France. The lower element is granite random field stone. Above this resting on the wall and attached at the sides, I hope, is a substantial wooden soft wood frame with other original oak elements . The facing of this frame is sterling board which is in turn rendered with a lime based plus cement, probably, coating. The chickens eat it as it falls off. The render doesn't appear to be water proof and as such the boarding is warping moving causing the render to fall off at a quicker rate.
I have inherited a large quantity of what I hope are cement fibre slate lookalikes they are 450mm x 300mm.
I propose removing the render. Installing what I think of as roofing underlay the black cloth like stuff not bitumen with a foot overlap laid horizontally.
I then propose putting vertical wooden battens at 400mm centres screwing to the sterling board. From these I intend fixing the horizontal battens from which the tiles will be secured to.
Now for the crux of the problem, overlap. I propose hanging the tiles from the battens by means of screwing after making holes with proper tool. I am hoping that I can have these holes fairly close to the edge, top and from outer edges. I would hope the be able to hang the next layer of tiles, joint offset, with say 150mm overlap meaning that each tile exposed moves me up the wall 300mm. I have 7meters by 4.2 meters to cover allowing for it being an apex half that.
The local method is by spring clips which give a rise each row of tiles of 150mm and the effect of having at any given point of three layers of slate. There's no underlay employed.
Is any part of my plan do able does there need to be only 150mm rise per tile row or will 150mm overlap work. Any other advice, wood sizing, pitfalls etc entertained.
Merci.
The situation is this. I have a gable end of a barn in France. The lower element is granite random field stone. Above this resting on the wall and attached at the sides, I hope, is a substantial wooden soft wood frame with other original oak elements . The facing of this frame is sterling board which is in turn rendered with a lime based plus cement, probably, coating. The chickens eat it as it falls off. The render doesn't appear to be water proof and as such the boarding is warping moving causing the render to fall off at a quicker rate.
I have inherited a large quantity of what I hope are cement fibre slate lookalikes they are 450mm x 300mm.
I propose removing the render. Installing what I think of as roofing underlay the black cloth like stuff not bitumen with a foot overlap laid horizontally.
I then propose putting vertical wooden battens at 400mm centres screwing to the sterling board. From these I intend fixing the horizontal battens from which the tiles will be secured to.
Now for the crux of the problem, overlap. I propose hanging the tiles from the battens by means of screwing after making holes with proper tool. I am hoping that I can have these holes fairly close to the edge, top and from outer edges. I would hope the be able to hang the next layer of tiles, joint offset, with say 150mm overlap meaning that each tile exposed moves me up the wall 300mm. I have 7meters by 4.2 meters to cover allowing for it being an apex half that.
The local method is by spring clips which give a rise each row of tiles of 150mm and the effect of having at any given point of three layers of slate. There's no underlay employed.
Is any part of my plan do able does there need to be only 150mm rise per tile row or will 150mm overlap work. Any other advice, wood sizing, pitfalls etc entertained.
Merci.
)
