CHURCH STAINED GLASS WINDOW FRAME REPAIR

AND PROTECTIVE COVERINGS

 "More damage has been done to church stained glass windows and frames from

unvented protective covering materials,  than from all storms, fires and vandals combined"

                 1996 National Preservation Society ,Study of stained glass         

            

    All of the above images are not only unsightly, they are also damaging the stained glass frames by trapping moisture between the layers of glass which then rots the wood, rusts the steel ventilators and oxidizes the lead in the stained glass window.  In addition, without any ventilation to allow heat to escape, the stained glass will over expand and develop bulges and stress cracks.  Unlike clear home of office glass, the dark color of the stained glass will absorb heat from the sun, just like a black shirt in summertime, and without an expansion joint, it will deteriorate at twice the normal rate.

                             

     These close up photos of the window sills from the upper photos, clearly shows the extensive damage to the wood frame from the moisture buildup underneath the protective covering material.   The left photo also shows severe damage caused when aluminum covering were installed over the already damaged wood.  Rather than protecting the wood from further damage, this aluminum traps more moisture underneath and accelerates the damage.

 

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