I have an outbuilding about 12' square that is built from concrete blocks and rendered outside.
Is it safe to knock out a concrete block to create a small window that I could build a wooden frame for? Or possibly knock out two separate blocks, each on different walls?
Thanks for your help.
Is it safe to knock out a concrete block to create a small window that I could build a wooden frame for? Or possibly knock out two separate blocks, each on different walls?
Thanks for your help.