A: YES, they can
Building a Polytunnel on a Slope
First Tunnels Polytunnels can accommodate a slope providing it isn’t too excessive. If the slope is along its width then foundation tubes on the lower side can be protruding out of the ground by a maximum of 15cm. If the slope is more than this then you would need to have extended foundation tubes to ensure that there is enough tube fixed into the ground.
For slopes along the length, the Polytunnel can be constructed as normal ensuring that the hoops are kept vertical.
Please do not hesitate to call our construction team on 01282 601253 should you wish to discuss the option of constructing a Polytunnel on a slope.
http://www.polytunnels.co.uk/construction-team.htm
Sean Barker is the MD of First Tunnels, and is enthusiastic about providing quality gardening supplies to gardeners across the UK