This 3mm thick tape is used to seal commercial polytunnel gutter joints.
Polytunnel gutter joint.
Vat add items to basket qty.
You just need to tape a strip of polythene onto the cover above the gutter to create a flap that overlaps the gap.
Yes there is i had a small leak the other day after pondering on the subject i came up with a solution being a cyclist i had loads of useless inner tube so i cut off a length of tube and unhinged the guttering placed the strip of tube in the gap of the joint where the guttering was laid and resealed it by clipping it back into place it works no leaks.
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.
70mm 2 3 4.
Produced from class a butyl mastic.
4 to 5 days.
You should now have a strong robust alternative for harvesting rainwater off your polytunnel.
I ve tortured myself for a month or more about how i m going to keep the veg in my new tunnel watered from november to may when there s no water on the all.