slide out in rockwood trailer

#1
i have just bought a rockwood trailer and i love it except for the liveing room slideout underneath the bottom is cut out where the motor runs and i was told this is normal.
there is a hole there from one side to the other and you will get cold air and bugs in all the time need help to find out if this true or what i can do
can someone get back to me @ mlavalle2000@yahoo.com thanks
 
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