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Roofs and Windows

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Recently, I was in Costa Rica, helping or calling on some customers of ours and we couldn't quite figure out why some of the pests were being seen. So I asked the question, "Could we get up on the roof?" That's where we found some very interesting issues. And it wasn't just in Costa Rica, it was in Guatemala and in fact, throughout the United States when I was a technical director in the United States. Roofs are often an area that we don't inspect. Now I understand they may not be safe and there may be special types of equipment that we need and harnesses and tie-offs or railings that the customer may need to provide for us. But it's essential that we get up on the roof and see what's going on up there. I have seen vegetation that has been two feet tall that's growing in a gutter. Therefore, you have a whole ecosystem of insects and other conditions that are unsanitary for that building, and now they're slipping on the inside. So I would ask you please get up on the roof and then advise the customer of conditions that are conducive for pests and help alter that. Now along with roof type situations, there may be windows that are also letting pests in. Sometimes we kind of think, "Oh, well, there should be a window there, nothing's getting in there." Well, sometimes there is no window but just a screen. The weather was fantastic in Guatemala, and many times, doors and windows are just left open. Well, that is actually therefore a way that pests get in. Something else I noticed that ties into doors and windows is that, "What is the pressure of the building?" Now do we understand that? When we talk about a positive air pressure of a building that means when the door opens up, that air is being pushed out. On the other hand, a negative air pressure of the building would be that when that door or window opens up, that actually air is sucked in. Now you might say, "Okay, well, that's a problem if you have mosquitoes or flies or other types of pests." That's correct. But what about non-pest issues? If you open that window and you have that negative air pressure, there could be dust, there could be chemical, someone could be spraying for mosquitoes across the way and it blows in, we need to share with our customer that that negative or positive air pressure is a big impact on pest control and general safety of that building or the health of that building. Positive air pressure is always the goal that we want to have. And sometimes, as companies get bigger and bigger, they add new air systems and they forget that that may impact what they currently had and change the pressure of that building. One way that I always do is I take a little tissue and I let it drop when the door opens up. If that tissue blows out, then I know this is a great location here, we've got positive air pressure. On the other hand, if it blows in, then we have negative air pressure. You can also take a lighter that you use for cigarettes and see what direction the flame actually goes. If it's going out, that means it has positive pressure, if it's going in, that means it has negative pressure, and therefore it would be something that we want to talk to the customer about trying to rectify or sometimes it might be valuable to have big fans that are blowing at that door or that window where we suspect problems and therefore that even though the whole building itself may have a negative air pressure that one location may be positive, so when we have a fan that's there. So considering the building, looking at the roof, the windows, and the pressure of the building can really help us solve pest problems.

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Duration: 3 minutes and 32 seconds
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Language: English
License: Dotsub - Standard License
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Views: 7
Posted by: rbanderas on Dec 5, 2017

Roofs and Windows

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