Straw Blankets Erosion Control
Single or Double Net Straw Blankets
Question: I am interested in straw blanket erosion control products and I have some questions. What is the difference between a single net and double net blanket? How long will these blankets last? Is there any limitations on how, where, and when they can be used?
Answer: The straw erosion control blankets are an excellent choice for short-term erosion control on a bank, slope, stream, or channel. Depending on your application, different erosion control blankets may work better than others at controlling your erosion.
Single or Double Net Blankets
In general, the main differences you will fine between a single or double net straw blanket is in terms of their construction. The single net blanket will feature a filler of straw, surrouded by only single polypropylene netting. The double net blanket will use the same filler material, but instead feature double polypropylene netting for added strength.
Single Net Blankets
As their name suggests, the Single Net Blankets are slightly lower in strength and are typically used in applications that require short-term support. Different single net blankets may work better than others, but the general lifespan for this blanket will be approximately 12 months. Places where you may find these blankets being used have included:
- Low-Flow Channels
- 3:1 Slopes or lower
Double Net Blankets
The Double Net Blankets, by contrast, are slightly higher in strength and have been used in locations that require more erosion control or stability. Some of the strongest double net blankets can be used over a time period of approximately 12 to 24 months. Areas where these blankets may be used have included:
- Medium Flow Areas
- Slopes Ranging from 3:1 to 2:1
PLEASE NOTE: While this may provide a general overview regarding straw blankets erosion control products, the details for individual products can always vary. Some double net straw blankets are lighter in strength (approximately 90 days) while others can be higher.
In addition, many Straw Blankets Erosion Control materials will also include the use of a coir material. Coir is typically a much stronger material than straw and can help increase the lifespan of your blanket.
Need Help Determining Which Blanket is For You?
Please feel free to contact us with any additional questions regarding the blanket and how it can be used. Our team of experts is always willing to work with you to determine the best option for your project or location. Some questions they may ask include:
- What or how will you be using this blanket?
- What type of water flow does this include?
- Will it be used on a slope? If so, what is the incline?