Category Archives: Roof

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

Posted by in Case Studies, Mold Growth, 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

What Causes That Fish Mouth Appearance in a Shingle Roof?

Posted by in Buying/Maintaining a Home, Construction & Shortcuts, Roof, Shingles | July 10, 2017

Sometimes a shingle roof will exhibit a pattern of shingle tabs raised at their center, such as seen in the featured photograph.  That is, the shingle tab is partially sealed at each end, but raised in the middle (Figure 1).… Read More

Quickly Identifying Unsealed Shingle Tabs

Posted by in Roof, Shingles, Simple Forensic Methods | June 19, 2017

Here is a quick and easy method to identify unsealed, partially unsealed, or poorly bonded shingle tabs or shingle strips.  But I must warn you, “DO NOT TRY THIS AT HOME UNLESS YOU ARE WILLING TO ACCEPT THE RISK OF… Read More

Nailing Something Tight Isn’t Always a Good Idea

Posted by in Roof, Synthetic Slate | January 30, 2017

When driving a nail, many of us drive it until it is firmly set, that is, tight.  However, that is not always the best practice. Unless one is nailing rough framing, it is better for many applications to set the nail… Read More

Snow Removal on a Roof

Posted by in Buying/Maintaining a Home, Roof, Snow Loads, Winter Concerns | January 09, 2017

We have had a few articles regarding removing snow from a roof. Here is our latest.  It’s a long overdue follow-up to Chalk Up Another Victory Over Ice Damming where I discussed buying a roof rake. Here is the application:… Read More

Update: Low-flying Planes (Still) Damaging Roofs in Poland

Posted by in Roof, Shingles, Unusual | December 05, 2016

In July 25, 2016 we reported a story in the Dziennik Polski that low flying airplanes were damaging clay roofs tile on homes nearby the airport in Morawica. This is an ongoing story in Poland as the authorities have been flummoxed… Read More