800.440.6374     Phone 360.835.7507


Chances are if you know what no-see-Ums are, you know they do not belong in your home, with these high quality screens installed you will no longer be at the mercy of no see ums

When soils become moist and temperatures rise, these small mosquito relatives fly out of the wetlands, looking for a little sip of blood.  They can’t be seen, but they can be felt, with sharp biting pain whenever people are outside, especially at dawn and dusk.  Commonly referred to as no-see-ums.

The scientific name for the no-see-ums (a/k/a no-see-ems) is Ceratopogonidae, although  it has accumulated more common names, including sand flea, sand fly, biting midge and punky.
Biting midges can be a nuisance to anyone who spends time outdoors during early morning and evenings.   Even during the daytime on still, cloudy days they will readily inflict irritating, painful, bites.    For some, their feeding can cause long-lasting painful lesions on exposed skin.

Bite prevention is the preferred way of dealing with these pests. Your home can be protected with a special screening which is available to exclude these fliesMost biting midges can fly through a standard 18 x 16 or 16 x 16 mesh insect screen in V formation, Only so a much smaller opening  size (higher mesh count) is required to prevent entry.

Our No See Ums screen specifications are top quality, precision woven T-304 or Marine Grade T-316 Stainless Steel, not inferior materials Fiberglass, Plastic, Polyester or other synthetics that may require frequent replacement.  Stainless Steel no-see-um screening will last a lifetime in most applications when properly maintained. Due to the superior strength of stainless steel, smaller wire diameters allow superior open area (visibility) to synthetic materials.
The table below lists the most popular screens utilized to prevent entry of small flying insects such as  gnats, no-see-ums or biting midges.  Select an opening slightly smaller than the pest you wish to exclude.
To access more detailed information on any of the specifications listed below click on the adjacent PDS link to access the printable Product Data Sheet.

No See Ems Stainless Steel Insect Screens

  Pros Data Sheet
Lineal In
Opening Wire Weight Open
and Size Diameter Lbs
  Cons T-304 T-316 Inches mm Inches mm SF Area
  4 PDS PDS 22 Mesh 0.038" 0.965 0.0075" 0.191 0.083 69.7%
  5 PDS PDS 24 Mesh 0.0342" 0.869 0.0075" 0.191 0089 67.2%
>> 6 PDS PDS 30 Mesh 0.0268" 0.681 0.0065" 0.165 0.085 64.8%
  7 PDS PDS 42 Mesh 0.0183" 0.465 0.0055" 0.140 0.086 59.1%
4. This product has opening size (0.038") that is capable of preventing the entry of smaller flying insects notably the infamous No-See-Ums. The percentage of open area is which allows good air flow ventilation and visibility are noteworthy advantages

--Very Good Air Flow / Visibility Rating @ 69.72%-

Although the advantages outweigh any disadvantages, if the primary objective is to to prevent the entry of blood sucking 'No-See-Ums' it would be wise to consider a higher mesh count with a smaller opening such as the 24 mesh. When asked if this product is the best choice for excluding No-See-Ems. We recommend the 30 Mesh as most likely to block smaller verities.
5. This specification is often requested by customers who have purchased a 20 mesh fiberglass screen which is widely promoted as a 'No-See-Ums' screen' who determined the product either failed to exclude 'no-see-ums' or the service life was limited, requiring frequent replacement.        

  ----Good Air Flow / Visibility Rating @ 67.2%----

The strength and durability of stainless steel screening is more more costly than fiberglass although when the cost of frequent replacements in addition of the labor required, costs involved when those factors are combined, the strength and durability of Stainless Steel screens it is often determined to be the most cost effective material of choice.
6. This specification is best suited to exclude No-See-Ums when the the three important factors including the Opening Size, Wire Diameter and Open Area.

 ---Standard Air Flow / Visibility Rating @ 64.8%---

The standard industry insect screen open area established in the 1940's housing boom was 66% The higher strength, and longer life expectancy of Stainless Steel Screens having the ability to block entry of no-see-ems  has 64.8% which is still considered as a 'Good Air Flow/Visibility Rating'
7. This no-see-ums Screen has a smaller than average opening size capable of excluding the less than normal size of No-See-Ums. The smallest size no-see-ums comes at a price being the lower than the Industry Standard Air Flow/ Visibility Rating.

----Sufficient Air Flow / Visibility Rating @ 59.1%---

Be sure to consider the "Open Area" as standard insect screen has a typical open area of 66%  As the open area is reduced a proportionate reduction of visibility and air flow through the screen will result.
Call  360.835.7507
[Technical Reference Index]     [Woven Wire Main Index]      [Wire Cloth Products]
Screen Technology Group, Inc
33008 NE Washougal River Road, Washougal WA 98671 USA
Screen Technology Group, established in 1988 With our success built on providing a level of customer service that is second to none, competent technical assistance, quality materials at competitive prices, properly package every order, always ship promptly according to schedule.
By using this website, you are agreeing that you have read and accepted the Terms of Use Agreement
Copyright 2015  Screen Technology Group, Inc.   All Rights Reserved.

Last modified: December 19, 2016