Eight degrees and bricks?

[zingo]

I chose 22 degrees and it turned out great.
I am the best.

 

[Mikael_L]

Can't increase the slope because one end would then be so high that it will shade a large part of the short side of the barn next to it, at the time of year when it needs the most sun to avoid damage from cold and moisture.

Is the barn demolished now?

 

[Jan-Å]

Throwing in a question here as well, since I have a similar query.

According to the plans, our garage should have a slope of 10 degrees (monopitch roof), and I've been considering using concrete tiles there (the same as the house).

What is it really that makes it not advisable to have less than a 14-degree slope?

Of course, I've planned to have proper underlayment beneath the tiles, possibly more robust than YAP 2200, and I'm considering nailing all the tiles.

The main issue with too little slope is that water can run up under the tiles/metal, etc., causing moisture under the roof. This phenomenon is usually (always?) related to wind blowing water up the roof. With a proper subroof or, as in zingo's case when there isn't even a subroof, it's hardly a problem; none of the metal roofs I've installed with too little slope have caused any issues anyway but you can usually install metal roofs with full-length sheets, so you only get seams along the metal.
I would be a bit more cautious with tiles on a roof for an insulated space.

 

[zingo]

No, the barn is still standing... and it's leaning more than ever but is also more charming than ever. Within ten years it will be renovated!