Wednesday, May 23, 2012

How To Effectively Handle Japanese Knotweed

By Tom Boyce


Japanese Knotweed is the most aggressive plant known in the United Kingdom today and specialised obstructions are wanted to control them.

There aggressive root system and strong growth can damage foundations, buildings, flood defences, roads, supporting walls, architectural sites , as well as paving and tarmac areas. It could also reduce the capacity of channels in flood defences to carry water, making it an exceedingly serious issue.

All companies that deal with the issue of Japanese Knotweed must use expert membranes and root barriers because they seem to be a controlled and effective technique of forestalling knotweed growing up into sub-bases, or as an 'in-situ capping ' operation, this is often done by installing the membranes horizontally.

This removes a rather serious threat to construction where it can have terrible consequences damaging foundations, drains and other underground services.

There are numerous root barrier membranes available which claim to stop Japanese knotweed penetration, however a root barrier surface is only as much use as the way in which it has been installed. Therefore necessary that there's experts do this expert job when the root barrier surface is supplied and installed.

There have been many perpetrators other than Japanese Knotweed which are categorized as invasive plants such as English Ivy, Himalayan blackberry, butterfly bush, traveller's clematis, and drooping sedge.

To someone that doesn't know about Japanese Knotweed they will not recognise the harm and nuisance they can do. As an example one homeowner who tried to re-mortgage his £400,000 property had his application refused due to Japanese knotweed in his garden.

It's important that a root obstruction membrane is installed efficiently. Japanese Knotweed rhizome can remain suspended for no less than 20 years, so it is important that a root obstacle membrane carries a warranty well beyond 20 years.

EvansEnviron have supplied and installed Japanese Knotweed Barriers for over 11 years and are experts within the field. We have massive experience on installing effective barriers which tackles the Japanese Knotweed pandemic.




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