Dig a 3 inch deep trench around the edges of your garden bed.
How to secure plastic sheeting to ground.
Hammer masonry nails through 1 by 2 inch strips of pressure treated lumber to hold the top of the polyethylene in place.
You may want to use poly patch tape here to make this connection extra secure poly patch tape is uv and weather.
Up the wall and fasten it there.
Overlap any seams and tape them.
You can easily pound a stake through the sheeting but this may lead to tearing which is why setting rocks on them is better.
A so called termination strip made of wood holds the plastic in place.
Rocks usually work well for keeping ground sheets in place.
Use your snap clamps to secure the plastic to the front and back ribs over your previous work.
Smooth the plastic over the top of the ground so it comes in contact with the soil and doesn t float above it.
Replace the soil into the trench so that the plastic is anchored down securely.
Push the edges of the plastic into the trench.
Apply a polyethylene tape to the area where the pvc meets the greenhouse plastic.
And bring the plastic about 6 in.
Cover the dirt crawlspace with a plastic moisture polyethylene vapor barrier.
White tape is preferable duct tape has a top layer of polyethylene wrap an old piece of greenhouse plastic around the pvc before installing your new plastic.
Hold the top left corner of the first plastic sheet to the top corner of the first wall and staple it into place with a heavy duty staple gun.
Leave an extra foot or two on the sides to help secure the plastic and trim any excess.
Use the landscape fabric stakes and hammer them down into the soil around the edges to secure the sheeting to the soil.
Drape the plastic sheeting over the frame.
Use 3 8 inch staples to fasten the plastic to the.
Additionally at the edges of your crawl space where the soil meets the walls leave several inches of sheeting allowance.
Stake the plastic down with landscape fabric stakes to keep it in place.