Question: I need to replace my old, single-pane windows. I think glass-block windows would be more secure. Are they efficient, and can I install them myself?
Answer: Whether made from glass or plastic, block windows are a good option for homeowners seeking to improve both the safety and efficiency of their homes. The design of block windows makes it difficult (though not impossible) for thieves or storm-tossed debris to penetrate your house, and thanks to an insulating air gap inside each block, they also help keep the interior comfortable. Look for block windows with a low-E (low-emissivity) coating on the glass for maximum insulating efficiency.
There are do-it-yourself kits for building glass-block windows from individual blocks, but I recommend buying preassembled panels, which can be installed just like a standard window.
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