Choosing a Cover – Poly vs Tarp

Everyone wants to save money but they also want value for the dollars invested. One of the things that sets MSS apart is with the cover choices we offer.

The two main areas of covers we offer are the 12mil woven tarps and the 7mil plastic. (Other options available, call to confirm)

Both of these choices are by no means the heaviest that are out there, but they do provide excellent life span for the investment.

When you consider the cost per year on our 12mil white tarps, which have an 8-10 year expected lifespan, they stack up very favourably to the 20-24mil covers that are available.

  • The main reason 12mil is even an option for us to use is that our hoops or ribs are much closer together and therefore provide much more support to the cover.

Using 7mil plastic gives even more options.

  • Going clear (greenhouse) allows the necessary light transmission for plant growth.
  • Going white (livestock) allows light while still providing a shade factor.
  • The option of a double layer with air between, provides even more benefits for heat loss and condensation reduction and added stiffness in extremely windy locations.
  • The biggest attraction for the 7mil plastic is the life span you get for the investment.

Call to get your custom quote today. We would be happy to help you.
You can also see our covering page for even more detailed information

Greenhouses 101: Covering Options

We have previously covered the idea that while considering your structure choices you will have to weigh cost versus benefit or return. There is no area which this is more true then with cover choices. The wide range of cover choices include glass, polycarbonate, polyethylene and woven products. Within each of these products there is an equally great variety of choices. Along with each of these choices there is a huge variation in cost and function or performance.

At Multi Shelter Solutions we manufacture a wide range of shapes and sizes of predominantly plastic and tarp covered buildings. Because these buildings and shelters are narrower and have a reduced hoop spacing, we can use a lighter cover of the options available. The easiest way to get a comparative cost is to take the replacement cover cost divided by the years of expected life span to get an annual cover cost.

Our 7 mil plastic covers can be used as a single layer or double with air between for a 30% reduction in heat loss and to minimize condensation. These covers have a 4 year warranty against deterioration by the sun. Plastic is available in clear (greenhouses) and white (livestock shelters) and comes in various thicknesses. The average life span is 5 – 6 years for single layer and 6 – 8 years for double although 10 years is not uncommon.

Our 12mil white woven covers have a much greater tear resistance then plastic. This makes a good alternative when there will be some contact between product and cover. By providing shade, the white tarp is cooler in the summer. By still letting light in, it is warmer in the winter. Typical life span is 10 year. We offer a green tarp as well but due to the heat it absorbs, the life span is typically 3 years less then white.

You can see more info on these choices on our covering page or with the presentation video and the rest of the series Norm spoke on Greenhouses 101 here. Stay tuned for the end of  January 2016 when he presents Greenhouses 202! As always, we are happy to help you with any of your questions regarding planning or options as you are considering your structure purchase.