migratory tops?

kbenz · August 12, 2010, 10:12:24 PM

when using a migratory top for a top entrance, do you just use a piece of plywood for the bottom board?

Michael Bush · August 12, 2010, 10:57:50 PM

I don't. The frames will be resting on the plywood if you do and they will propolize them down and the bottom bars will pull off when you pull out the frames... I'd take that piece of plywood and make a 3/4" by 3/4" frame to go on top of it.

kbenz · August 13, 2010, 04:45:06 PM

glad I asked, never even thought bout that

Michael Bush · August 14, 2010, 02:45:59 AM

It's all about beespace, except that at the bottom beespace expands from the normal 1/4" to 3/8" to 1/4" to 7/8"...

kbenz · August 15, 2010, 09:34:55 PM

could you do the same on the top but leave an opening for an entrance reducer? or would that be to much bee-space above the frames?

Michael Bush · August 16, 2010, 12:59:24 AM

Top beespace is 1/4 to 3/8". More will result in more burr comb. I make my reducers 1/4" tall. usually I make them out of screen molding (1/4" by 3/4") with one nail in the middle for a pivot. I can pivot it closed or pivot it open. That way I don't lose them.

eastsidebuzz · August 18, 2010, 11:27:59 PM

I use 3/8 to 1/2 on the bottom SBB's and 3/8 on the tops.