An Ordnance Survey cut mark in the UK. The term bench mark, or benchmark, originates from the chiseled horizontal marks that surveyors made in stone structures, into which an angle-iron could be placed to form a bench for a leveling rod, thus ensuring that a leveling rod could be accurately repositioned in the same place in the future.
The forces that cause windows to leak fall into three categories: house design, installation, and maintenance. Turning to the wisdom of industry experts, we can identify nine of the most common errors that occur during window installations, which can lead to window leaks â and now you can too.
My window has a broken window seal that has let a lot of moisture in between the panes of glass. It has a hazy look and I can barely see through it. Is there anyway to fix this or do I have to replace the window. Click here to add your own comments. Click here to add your own comments.