Category Archives: Shingles

What happens when…the boot on the soil stack is too small?

Posted by in Buying/Maintaining a Home, Roof, Shingles, What happens when ...? | February 29, 2016

Ever wonder if conventional wisdom, common sense, or old wives’ (in this day and age of political correctness I probably should include old husbands’) tales are accurate? This blog begins what I hope to be a new recurring series of case studies… Read More

Quick & Easy Repair for a Soil Stack Boot

Posted by in Buying/Maintaining a Home, Roof, Shingles | December 14, 2015

Ever get up on a roof and find the soil stack boot has deteriorated or split (see the feature photo).  It is one of those “Argh” moments. Here is a quick repair that may come in handy this winter or… Read More

Please be careful this winter!!!!!!!!!!!!!!!

Posted by in Buying/Maintaining a Home, Roof, Shingles, Snow Loads, Weather Events | November 09, 2015

If you are chipping ice dams out of the gutters and valleys of your roof this winter, please be careful. I know it gets frustrating as we chip away at the ice in the cold, but a few slips of… Read More

Observations Regarding Wind Damage to Shingles

Posted by in Shingles, Wind Damage | November 02, 2015

Just because a tree or portion of a large tree has been felled by wind doesn’t necessarily mean that the shingles have been damaged by wind (See the photos below of the undamaged shingles on the roof near a fallen… Read More

Cleaning Lichens from Shingles (An Experiment)

Posted by in Buying/Maintaining a Home, Roof, Shingles | October 05, 2015

While performing my annual pre-winter roof maintenance this fall I again noticed the moderate growth of lichens on parts of my roof.  The lichen growth is in areas that are heavily shaded (Figures L-1). I thought that this might be… Read More

Shingles with Jen-U-Wine Hail Damage

Posted by in Roof, Shingles | September 28, 2015

We have evaluated a number of roofs this summer for hail damage.  We have evaluated more roofs than most years, but not as many as in some of the past years. And now, for your viewing pleasure, I now present a… Read More

What Can We Tell from This Photo? (Case Study 11)

Posted by in Shingles, Simple Forensic Methods, Winter Concerns | August 17, 2015

What can we tell from THIS photo?   This photo was taken at a valley on a shingle roof. The shingles on the left are less weathered indicating that they are not as old as the shingles on the right.… Read More

How many layers of shingles?

Posted by in Roof, Shingles, Wood | June 22, 2015

How many layers of shingles can be safely supported on a wood framed residential roof? Most building codes limit the number of layers of shingles to two.  As a structural engineer, I design for two, but I prefer one layer… Read More