Standard glass block have the energy efficiency approximately equal to most thermal pane windows.
Glass block basement windows pros and cons.
Glass block windows are heavy and the process used to create them is expensive so they can be a costly addition to your home when compared with the standard alternatives.
Air vents dryer vents can be added at an additional cost.
If you re in an area that is prone to flooding glass block windows are a great option and investment.
Even for a tiny basement window constructed from glass block it would cost at least 175.
Pros cons of glass block windows pro.
A big issue with using glass block windows is that once they are installed you can not open them to let in air or to ventilate the space they are installed in.
The southeast absolutely is the largest user of our acrylic block products.
They are a cost effective solution for replacement basement windows and will lower your costs for maintenance however there are a few draw backs.
Glass block windows offer thermal insulation values that are similar to double pane.
Acrylic block versus glass block pros and cons.
Glass block windows add more light.
Some factory built glass block windows meet federal energy star efficiency guidelines and will have the energy star designation on the glass.
The use of acrylic block windows is much more widespread across the country.
Block windows don t open.
10 times more energy efficient than basement or bathroom windows.
Glass block windows are being recognized for their energy efficiency.
Glass block windows are maintenance free there is no need to caulk these windows after they are installed.
Glass block windows are expensive.
Glass block windows are cost effective installed cost is usually the same or less than other window replacement options.
Because glass block windows are comprised of glass and mortar or glass and vinyl depending on your window they are essentially waterproof especially with the latter.
Most standard glass block windows are about as efficient as thermal pane windows twice as efficient as single pane and are airtight.