I want to install glass block windows before I pour my walls. Has anybody done this? I don't want to use a wood buck and thought it would be easy to set the glass blocks and pour around them. They would be in the top course of block and my only concern would be to get the concrete around under the block. I want to use  48" x16"glass block units , the same size as my 8" block.

You will have problems with consolidation just as you suspected because of the location at the top of wall. My best guess is to buck it for the pour and then remove it for placing the glass block.

Other things to consider: Creating a header by doubling your rim at that location 12" longer ea. way than your window, & how you will jamb and trim if finished.

Dave

Mark3885,

Consolidation is a concern but is is easily remedied.  Put small holes in the side of the blocks under your glass block and vibrate through the side.  Then cover them once you reach the level of the hole and go to the next one up.

Walltech brings up a great point, you should always be looking ahead and figuring out how what I do today will affect me or a subcontractor tommorrow.  This simple shift in attitude will save you thousands of dollars and countless hours of time.

 

ICF Contractor

Mark,

Some types of windows require expansion space around them.  Placing concrete around glass block does not allow for expansion.  Check with the glass block company about installation instructions.

thanks for all the replys. A window which would allow egress would be needed if I want to create an enclosed room.  thanks again     Mark

Mark,

I found this company during my own product search, they might have a solution to your need for a glass block egress window. USblockwindows.com