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Insect Exclusion

Insect Exclusion

Entomologists, not to mention the pest management professionals you deal with, know a lot about construction. Most of them are trying to solve pest problems, and much of that is figuring out how the pests got into the structure. Those solving pest problems would agree that almost all pests enter the structure by penetrating gaps in the building envelope. Of course there are pests which enter through open doors and windows, down chimneys, or accompanying the people who enter the structure, but these are usually a small fraction. Pest control people are highly aware of all the gaps in structures which serve as pest entry points. They know that many pests are as small as 1/50th of an inch (.018”). They know that literally millions of insects can nest in a home house or on the property of even a modest size residence. They know that invasive pests can chew or claw their way in, but they also know that most pests are just foraging – looking for a gap through which they can reach food, moisture, shelter, or warmth. Moreover, the pest control world is aware that thousands of entry points are created during construction, and that after construction innumerable entry points are created or enlarged by nature, through forces created by wind, temperature changes, base settlement, expansive soils, wet/dry cycles, etc. Perhaps as a result of serendipity, progress in sustainable construction has improved pest exclusion.

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