polytunnel construction.

[renewablejohn]

Finally have the man from visqueen coming to look at why the plastic on the last 3 tunnels split where it was folded on the roll. Will report the outcome.

[SteveA]

We need to order a polytunnel cover soon.... any thoughts on what's good or bad? cheers

[lawranced1]

anti hot spot tape on the hoops and it should slide over, stick someone in the tunnel with a broom to lift the poly over if needed. use to take 2 of us to change covers, a slight breeze is all so helpful!

[cornish wood burner]

Finally have the man from visqueen coming to look at why the plastic on the last 3 tunnels split where it was folded on the roll. Will report the outcome.

 

Because its visqueen

[SteveA]

Because its visqueen

 

So is that one to avoid? cheers

[cornish wood burner]

Finally have the man from visqueen coming to look at why the plastic on the last 3 tunnels split where it was folded on the roll. Will report the outcome.

 

You will have stored it too long, put it on upside down even though there were no markings, tensioned it too much, not tensioned enough the other way, your hot spot will be the wrong type, you didn't warm it enough before fitting, you used the wrong grade for your area, your hoops will be too far apart but too close on the other tunnel and both will be too high.

Do you know nothing!!

 

We used to get exactly the same problem with visqueen but it was easily solved.

[cornish wood burner]

So is that one to avoid? cheers

 

Visqueen used to be the market leader but seem to have stood still. For example 720 gauge used to be normal, competition brought out a more technical and stronger 600g. Visqueens answer 800g which is 33% heavier but no stronger.

XL horticulture in devon will advise and supply you at a good price.

Speak to Joe or Les

[renewablejohn]

Visqueen used to be the market leader but seem to have stood still. For example 720 gauge used to be normal, competition brought out a more technical and stronger 600g. Visqueens answer 800g which is 33% heavier but no stronger.

XL horticulture in devon will advise and supply you at a good price.

Speak to Joe or Les

 

Expecting to get a free cover if not then will certainly give XL a ring as I cannot afford to keep using this visqueen rubbish. Put another cover on this time last year and already it is starting to split.

[cornish wood burner]

Expecting to get a free cover if not then will certainly give XL a ring as I cannot afford to keep using this visqueen rubbish. Put another cover on this time last year and already it is starting to split.

 

Trying for a free cover has to be worth a go.

The reasons I can suggest for splitting on a fold are rolled too long, too sharp a fold, too much movement on the tunnel, poor polythene technology or a combination of these things.

Assuming the roll has not been on your shelf for long and it was a precut standard length then possibly it sat on your suppliers shelf for a year or so before you received it. Could be worth checking the sheet date if it has one printed on it.

[renewablejohn]

Trying for a free cover has to be worth a go.

The reasons I can suggest for splitting on a fold are rolled too long, too sharp a fold, too much movement on the tunnel, poor polythene technology or a combination of these things.

Assuming the roll has not been on your shelf for long and it was a precut standard length then possibly it sat on your suppliers shelf for a year or so before you received it. Could be worth checking the sheet date if it has one printed on it.

 

Plastic is always fresh from the suppliers but I wonder how long it has been sat on there roll before they have cut it off. My suspicion is that it is to sharp a fold as on the 40 mtr tunnels we always unroll the same way and have noticed the splitting starts from the end that was nearest to the centre of the roll. The last tunnel where splits occurred was the most noticeable with 2 folds splitting at different points on the first 20 mtrs the remaining 20 mtrs absolutely perfect and would have lasted at least another 3-5 years.

Perfectly still day today. Bet you cant guess what me and the other half are upto today.