Rodent proofing is the most cost-effective way of fighting problems with intruding mice and rats. Most rodents gain entry to buildings beneath closed doors which have not been effectively rodent proofed or through open doors. Therefore, is makes a lot of sense to rodent proof effectively and especially to rodent proof doors effectively.
Effective rodent proofing is a challenge for several reasons. Firstly, because mice can enter through crevices which are only 1/4 inch (6 mm) and rats can do with as little as 1/2 inch (12 mm). Secondly, because mice and rats are equipped with rodent teeth, which grow through their entire lives, and which serve as extremely effective gnawing tools. E.g. a rat can easily gnaw its way through the bristles of the high-density brush strips, which are much-used devices for rodent proofing.
The challenge is especially serious when it comes to rodent proofing doors through which there is rolling traffic with pallet lifters, forklift trucks and the like. The reason for this is, that with rolling traffic through a door it is not an option to block the threshold gap under the door leaf with a door saddle. Thus, under the door leaves of such doors, there will very often be an around one-inch high threshold gap, through which even rats can enter almost without as much as bowing their heads.
Outer doors are of course a first line of defense against rodent attacks. They are the doors one would start considering when planning rodent proofing of a building. However, in buildings, where there is rolling traffic through interior doors, it should also be considered, if it would be advisable not to rodent proof the affected interior doors: Such rodent proofing can prevent a rodent infestation from spreading from one area of the building to another area. E.g. if the stock of a supermarket is infested with rats it will greatly limit the damage, if the infestation can be restricted to the stock and does not spread to the sales area. That this kind of rodent proofing is relevant, is backed up by the fact, that in some countries it is a regulatory requirement that such doors must be effectively rodent proofed.
The RodeXit rodent proofing strip can be used for effective proofing of the horizontal threshold gap of manual single and double doors as well as the vertical astragal gap between the two door leaves of manual double doors. It can furthermore be used for numerous other rodent proofing tasks.
For further reading on rodent proofing we strongly recommend dr. Robert Corrigan's excellent book Rodent Control, A Practical Guide for Pest Management Professionals. When reading the book, please take into consideration, that it was written before the introduction on the market of the RodeXit rodent proofing strip.