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This video is to bring you a closer look at the National Guard 700NA. This is a perimeter seal and this sort of perimeter seal is used where you are going to have a parallel arm door closer installation. You can install this up at the header and install it in such a way that you can run your weather-stripping the width of the head of the frame and it is wide enough where you could attach your arm bracket through it that is the intention of this piece of material. Exterior doors that swing out would have a parallel arm closer typically installed and it is those areas where the parallel arm bracket occupies that there is a break in the weather-stripping. So you’ve got about a 24″ or 30″ weather-stripping and that break of about 4′ and then a 6″ piece typically. This sort of product allows you to get a seal up at the head where as you will have a lot of instances where you cannot otherwise do that with standard weather-stripping because of the mounting of the door closer. This is common material that you are going to see in applications that are commercial in nature generally. You will see these on the exit doors of a hospital where you have to have a seal. Not primarily entry and egress doors, but you will see this material on the back of a big box store. Simply in a northern climate or any climate really, they don’t want that air or temperature coming in all year long. You are going to have that sort of material specified and required. This material is a very thick solid piece of aluminum bar stock with a machined groove into it along with an inserted piece of neoprene. So the 700 is representative of that single beveled edge. The “N” means neoprene and that is the synthetic rubber that the seal is made of. The “A” means the clear anodized aluminum finish. This material is also available in a brass finish as well as a dark bronze finish. This is a 3′ piece and is just used for example purposes of this video. This sort of item is going to include a self-drilling screw and the concept is that you are going to simply use that installing it onto the frame header particularly. Some people are going to use this all the way around on the two jambs and the head. You install it so that you have a slight compression there. You will want to have it installed very carefully when you are running the screws into the jamb you don’t want to compromise the doors ability to latch properly. You want to test that and you might want to put one screw where you believe that it is going to fit real properly in one corner, run it down if you have cut it to length, place it and then test your installation. This material will not flex at all. You won’t want to run any screws where your arm bracket is going to go, you will want to have the parallel arm bracket going through this aluminum. Dimensionally there is an image below this video showing everything important about the item. You can see that the aluminum itself is about 1-1/2″ and then you’ve got 5/16″ worth of a projection of the neoprene, 1-13/16″ overall and the material is a 1/4″ thick. And it is substantial in its weight. This 3′ piece is a pound and a third, so it weighs over 4 tenths of a pound on its own. Available in several different lengths. This is something that can be cut on carbide tipped circular saw or miter box sort of situation. You could obviously cut that otherwise because it is just aluminum but if you have need for a custom length, by all means let us know by ordering the next longest piece or pieces and simply indicate in the comment field what length you would like for us to cut the material back to. It will save you the trouble of having to cut this although cutting this material in the field on site is probably what you will end up doing. You can even get a little fancy and miter the top inside corner and make it look very nice. If you have any questions on the National Guard 700NA Perimeter Seal Clear Anodized Aluminum with Neoprene Insert or any other National Guard product please feel free to reach out to us. By all means, review the link below this video for both the installation instructions which is an overview of what we discussed, but more importantly the link to the product brochure because it shows this and National Guard’s sister products so that you can view in one consolidated perspective what is the best product exactly for this. What you are really going to see there is a difference in seal material and a difference in projection of that seal material whereas the aluminum extrusion is the same dimensionally. Any questions on this or any other National Guard product please feel free to reach out to us. Thank you.