Category Archives: Water Sources

How Important is Wall Flashing?

Posted by in Masonry, Water Sources | April 04, 2016

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)

Posted by in Basements, Simple Forensic Methods, Water Sources | August 10, 2015

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

A Roofer’s Nightmare – Part 2

Posted by in Buying/Maintaining a Home, Roof, Shingles, Water Sources | June 08, 2015

Occasionally, we get to see a roof that causes us to say, “Yikes!” or some other such exclamation.  This week we have such a roof. Here, a large area of roof drains down into a small gutter and then onto… Read More

Inadequate Roof Flashing

Posted by in Buying/Maintaining a Home, Construction & Shortcuts, Roof, Shingles, Water Sources | April 27, 2015

We are often contacted to evaluate the source of moisture or water that is causing apparent mold growth, decay, moisture staining, or another type of water damage.  Sometimes the cause of the moisture or water source is a little easier… Read More

Do Leaf Guards Have an Effect on Icicles?

Posted by in Roof, Water Sources, Winter Concerns | April 13, 2015

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

Posted by in Roof, The Unusual, Water Sources | November 17, 2014

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

Posted by in Apparent Mold/Biological Growth, Attic Ventilation, Roof, Water Sources, Winter Concerns, Wood | May 30, 2014

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

Attic Wetness – Pattern of Condensation vs Pattern of Leakage

Posted by in Attic Ventilation, Roof, Simple Forensic Methods, Water Sources, Winter Concerns | April 21, 2014

We are often called to evaluate the source of moisture causing mold growth, water damage or wetting of building components.  These conditions may be in an attic, a living area, a crawlspace, a basement, a garage, etc.  The source of… Read More