Archives by Month: August 2016

Case Study: A Sagging Roof

Posted by in Case Studies, Roof, Wood | August 29, 2016

The roof of this barn exhibits a sag (featured photo).  The roof is framed with rafters (Figure 1).  The rafter ties are set very high to allow clearance for interior activities; however, this prevents the ties from adequately restraining the… Read More

The Need for Membrane Flashing Under a Threshold

Posted by in Siding, Water Sources | August 22, 2016

Whether a manufactured stone with multiple joints or a solid board is used under the threshold of a door (featured photo), a flexible membrane flashing is necessary to stop the infiltration of runoff. On the inside, runoff infiltration through a… Read More

Lightning Damage

Posted by in Lightning | August 15, 2016

A large tree was struck by lightning (Figure 1).  The home owner claimed interior damage to drywall. Although the tree was not adjacent to the dwelling it was very large and old.  The roots probably extended to nearthe dwelling and there were… Read More

A Lifted (Heaved) Basement Floor Slab

Posted by in Basements, Concrete, Unusual, Water Sources, Weather Events | August 08, 2016

What would cause a concrete basement floor slab to lift in this fashion? The basement floor slab was lifted up about eight inches or so.  The area of floor slab over the sanitary sewer lines was lifted more than the… Read More

Hail Damage Revisited

Posted by in Hail Damage, Shingles, Weather Events | August 01, 2016

It is that time of year again when we have thunderstorms with hail.  And, we are sometimes called in to evaluate damage to roof to determine whether or not it is hail damage.  There are times when these evaluations are… Read More