This 3mm thick tape is used to seal commercial polytunnel gutter joints.
Polytunnel gutter joint.
You just need to tape a strip of polythene onto the cover above the gutter to create a flap that overlaps the gap.
I did a little research here and came up with a good and working solution.
And lastly as there s now a gap between the gutter and the skin you ll need some way of getting the water into the channel.
Produced from class a butyl mastic.
70mm 2 3 4.
You should now have a strong robust alternative for harvesting rainwater off your polytunnel.
4 to 5 days.
Designed in house our specialist water collection system offers you a simple way to harvest rainwater from your polytunnel.
To ensure rainwater runs directly into the gutter a series of timber battens we used 19mm x 38mm pressure treated battens may be required to close off any gaps between the guttering and the side rail.