BUILDING A GREENHOUSE

Hi Stan:

We are building a greenhouse and have poured a concrete base for it. The frame will be heavy plastic piping and the cover will be plastic (not glass). We will heat and vent properly and will have mist spray available for watering etc.

Our question is as follows: What kind of plastic should we use and where can we purchase it? Finding a plastic useful for a greenhouse cover does seem to be a problem, unless we go to an extremely expensive high grade.

Your show is great. Thanks Stan,
Linda

Linda - I hasten to reply, as the weather is closing in and applying poly in less than 10 degrees C is no fun. When you refer to the plastic covering as expensive, there is a reason.

Greenhouse grade poly is usually heavier in mill thickness than light industrial or domestic poly. The greenhouse variety has been treated with an ultra violet inhibitor, which reduces the suns damaging rays, therefore prolonging the life of the poly by 4 or 5 years.

The best supplier of all greenhouse hard goods in Alberta is: Professional Gardener Co. Ltd. Phone...1 403 263 4200 (Calgary) any of the fellows will look after you. Keep in touch.