Cost Saving - Because you use fewer units, the weight required is drastically reduced thus reducing labor, transportation and storage requirements.
Performance - (1) Fastener can hold 124 pounds using 10 mil plastic, compared to (1) 40 pound sandbags that can hold 16 pounds. The fasteners can be used to construct wind resistant seams for long term high wind areas, without the need for expensive weldable materials.
Use Film Covers - High load rating of the fasteners allows you to use less expensive plastic films rather than thicker welded covers. Film covers can be put together in wet or cold conditions unlike welded covers. This will also drastically reduce or eliminate your maintenance compared to seam and cover failures using sandbags.
Quicker Access - Because your cover isn't held down by hundreds or thousands of heavy bags, you can get to your material quickly and easily.
Fasteners are easier to install because they only weigh 7.5 ounces each, you also won't need to install as many. If you are installing them in a difficult location, you will only need to lift about 1% of the weight needed for sandbags. Since the weight is so much less compared to sandbags, you will eliminate the equipment needed to move thousands of pounds of sandbags or used tires around your project or from jobsite to jobsite. This will also reduce back breaking labor to install.
The locks also greatly improves the performance of keeping the covers in place before and during storms. Traditional methods of keeping temporary covers in place tend to fail when they are needed most, right before or during a rain event due to the winds and the fact that a sand or gravel bags can only hold approximately 16 pounds despite weighing 40 pounds. This can cause expensive damage to a sites BMP compliance and or saturate you material adding more cost and time to a project and erosion concerns.
Symmloc only requires you to use a fraction of the weight required by sandbags of gravel bags, and you use less units and they can be used over and over, and transportation is easy, you can also add the benefit of having dry material during wet weather periods.
40 fasteners that weigh only 20 pounds would replace 100 sandbags. To determine the exact amount of fasteners you need please ask your ALCO representative and we can do the calculations for you.
It depends on the size of your stockpile cover. For a very large cover the weight can be quite substantial considering a sandbag is about 40lbs versus a fastener which is only about 7.5ozs. The larger the stockpile the greater your expense in filling sandbags, moving them, and installing them.
The fasteners require no special tools and hand tighten quickly. You only need the Base,
Cap, Connector, and a Knife for cutting the cover. See full directions here.
Yes, you can view detailed installation directions here.
Yes, the fasteners are reusable and can be used on future covers you may need. Unlike sandbags, they are also quick to move and don't require extensive labor.
Yes. This fastener can be installed in less than 60 seconds with a screw driver.
Yes. The fastener outperforms the holding ability of a sandbag, when you consider that a 40 lb. sandbag can only hold 16 lbs. Compare that to 110 lbs of holding force per fastener.