The four major benefits of recycled plastic hen houses are hygiene first and foremost, environmental, economic and the simplicity of build and lack of planning permission required.
Hygiene benefits of plastic hen houses
Less susceptible to red mite who love nooks and crannies, recycled plastic has a smooth which is easy clean and will scrub up with a mild detergent. Recycled plastic housing for hens are nearly always suitable for power washing if you feel the need.
Plastic hen houses will not require planning permission.
Most hen housing made from recycled plastic will not require any building at all. The best quality plastic products come assembled. Unlike some wooden coops plastic hen coops will not require planning permission as they are movable and not permanent fixtures. If you have any doubts you should always check with your local planning authority.
Environmental benefits of plastic chicken houses
Recycled plastic helps reduce carbon emissions. The UK annually imports 30 million tonnes of plywood. Therefore plastic hen houses will reduce the transportation burden and the overall carbon footprint of the UK. If in doubt then ask the supplier of your hen house if they have a house from a sustainable forest and if they have any certification to prove that they are actually offering you an eco poultry house like so many do but I've yet to see any proof to support any ethical production and we don't see that many manufactured in the UK.
Less dependency on chemicals with less weather treatment being required plastic hen coops will both last longer and have a lesser need for any chemical agents in their upkeep and cleaning process.
Economic benefits of plastic hen houses.
Plastic hen houses tend to be manufactured in the UK thus producing jobs and income to be spent in other sectors which will help protect your own job. The spillover benefits are most of this is in the farming sector which can pass on further savings to the end consumer as trends in localised shopping continue. The reduction in transportation discussed above will help slow the rate of acceleration in the price of oil that excessive importation helps to cause. The more local the product the less petrol used in the process.
The cost of plastic housing for hens or chickens may be higher at the point of purchase but the extremely durable nature means they will outlast wood by a country mile and the long term costs will be significantly less both on your pocket and on the environment as discussed above. The UK presently only recycles about 12% of plastics overall and any increase in this will be a benefit in both the short and longer term as the amount of available resource decreases over the longer term.