There are two types of tarps that are best known for their use in the construction industry and in do-it-yourself construction projects: polyethylene tarps and vinyl tarps.
Polyethylene tarps are constructed by laminating, or “sandwiching,” multiple layers of woven mesh fabric between two or more polyethylene sheets. Some of these heavy duty tarps have an additional layer of black polyethylene laminated in the center to make the tarp more resistant to the sun's damaging UV rays. Since polyethylene is waterproof, it is also naturally resistant to mildew and rot.
Polyethylene tarps are offered in low density polyethylene (LDPE) or high density polyethylene (HDPE) construction. HDPE is primarily used in commercial construction, but LDPE is more common amongst do-it-yourselfers because it is inexpensive, flexible and extremely tough.
Vinyl tarps have many of the same qualities as polyethylene tarps, but they are stronger and thus more expensive. Vinyl tarps are also waterproof and resistant to oil, acid, grease and mildew.
Polyethylene and vinyl tarps are the best construction tarps because they are highly resistant to ripping. Having the proper industrial tarp welding equipment and constructing the right reinforcements on the tarp help to ensure long tarp life. Reinforcements can be added around the perimeter of polyethylene and vinyl tarps to help prevent ripping and tearing. These include:
- A hem formed by folding the edge of the tarp back onto the tarp and then stitching or welding the material together
- Rope sewn inside the hem
- Grommets, or metal rings, to accommodate the attachment of cords
- Corner reinforcements
Contact Miller Weldmaster today for more information on industrial tarp welding equipment for the manufacture of the best construction tarps.