Moisture Staining

//Moisture Staining
Moisture Staining2011-04-12T17:12:44+00:00

Modern appliances, whether oil, gas or wood-fired, are much more efficient and most of the heat they produce stays within the building.  As a result, there is often insufficient heat in the flue and condensation and moisture will result. If there is not a water-tight liner in the flue, this moisture will bleed through the masonry as shown in the photos below.