Welcome, my name is XXXXX XXXXX X will do my best to help you with your issue
Is this more or less permanent?
Hi Rick, I have recently air-conditioned my bed-room here in Trinidad, West Indies. I have two rows of vent block about 64'' by 5''.
Ok, so you want to close up the vents and you cut a board to do this but it's not a tight fit? and you want this to be permanent?
Not permanent. Permanent would mean plastering it with cement. I would prefer something temporary so that I could remove it if I wish.
Then you're best bet would be to fill the gaps with foam ("rubber") gasket material/weather stripping. There are many options at any hardware store around here. I'm not sure what's available where you are
Weather stripping at Amazon.com
Thank you. I will check the local hardware here and see what they come up with. By he way I have a Rick in my name. Der-rick
You're welcome! all the best people have a rick in their name
I know (Smile) Take care.
I need to rate you
Thanks for using Just Answer! Please keep us in mind should you have questions in the future that could use some expert answers. You can request me personally for Plumbing, Heating or general Home Improvement/Building problems should the need arise. Just bookmark this URL for future reference http://www.justanswer.com/home-improvement/expert-rickthecontractor/