What caused damage to the drywall on this ceiling (Figure 1)? The damage is not due to a one time leakage. It is just too severe for a one time ice dam. Climbing into the attic above the kitchen we… Read More
Category Archives: Water Sources
How Important is Wall Flashing?
Take a look for yourself. I spotted these water and dirt stains on the face of a brick wall. The water and dirt stains are directly under the joint of the metal wall cap. The lap on the metal cap… Read More
What Can We Tell from This Photo? (Case Study 10)
This photo was taken at the base of a basement wall. We note the following: The moisture staining on the wood stud and the cardboard box indicate that there has been water infiltration. The multiple rings of the moisture staining… Read More
Do Leaf Guards Have an Effect on Icicles?
Many, many years ago my father-in-law asked me about any detrimental effects of leaf guards on gutters. Being over eighty he had decided that it was time to stop climbing a ladder to clean his gutters. I told him that… Read More
Please, Mr. or Ms. Architect, No More Roof Geometry Like This
I don’t know how many times we have been contacted to evaluate interior water damage (Figure NMRG-1) that was a result of poor roof geometry. Many times examination of the roof and/or the siding on the exterior reveals the obvious… Read More
Inadvertent Reduction in Attic Ventilation
We are often called to evaluate the source of moisture causing mold growth, water damage or wetting of building components in an attic. These investigations commonly conclude with pointing out a roof or siding leak from a breach in the… Read More