Category Archives: Roof

What Can We Tell From These Photos? (Case Study 19)

Posted by in Case Studies, Roof, Simple Forensic Methods, Wood | May 13, 2019

The roof surface exhibits a deep trough near scupper through which the roof drains. The roof runoff can’t drain off the roof until it fills and overflows the trough. The trough has been present for months, as evidenced by the… Read More

Leakage at the Soil Stack and a Method of Repair

Posted by in Roof, Shingles | January 21, 2019

Noticing moisture staining or peeling paint at the top of the wall above the toilet in your bathroom? Does the damage resemble the peeling paint in Figures BR-1 and BR-2 below? Lastly, does the location of the moisture staining or… Read More

Right and Wrong Ways of Siding Installation

Posted by in Roof, Shingles, Siding | January 07, 2019

There is a right way and a wrong way to do most tasks in life. This is also true when it comes to the installation of vinyl or aluminum siding on a wall above a roof slope.   It is good… Read More

Who Says, “You Need to Have a Gutter to Have Ice Damming or Icicles?”

Posted by in Attic Ventilation, Buying/Maintaining a Home, Roof, Water Sources, Winter Concerns | March 12, 2018

See those long, beautiful icicles and the ice dam? But wait – there is no gutter along the rear slope of this dwelling (see Figure 1).  How can there be an ice dam and icicles?  Just lucky, I guess. Note… Read More

Time for Icicles and Ice Dams

Posted by in Roof, Water Sources, Winter Concerns | February 26, 2018

So you think winter is over? Not yet.  It’s got one or two last hoorahs. It’s still that time of year for icicles and ice dams. What can you do to avoid them now?  Nothing, except use a roof rake… Read More

What Can We Tell from This Photo? (Case Study 15)

Posted by in Apparent Mold/Biological Growth, Case Studies, Roof | July 31, 2017

The feature photograph was taken of the underside of a roof deck in an attic.  This photograph provides helpful information regarding the cause and history of the damage. From this photo we observe the following: The pixelated pattern of the apparent… Read More

Indentations from Hail Impacts on Metal Roof Vents

Posted by in Hail Damage, Roof | July 24, 2017

What happens when a hail stone impacts a metal roof vent?  If the hail is big enough, many times greater than /14 inch diameter is big enough, the metal gets dented. The feature photograph shows where hail stones indented a… Read More

What Happened Here?

Posted by in Roof, Shingles, Simple Forensic Methods, Winter Concerns | July 17, 2017

The shingles along the eave of roof exhibit broken and dislodged tabs and surface gouges (Figure 1). What could have caused this?  Vigorous ice removal. The damage is along an area that was reportedly covered with ice (see featured photograph).… Read More