Friday, August 9, 2013

Underlayment - Poor Flashings and New Growth Wood

The industry today is at a new low.  The wrapping up of homes and buildings seems to have become a religion that cannot be broken.  The wrapping of the homes where the interior is sealed in an inferior way and the winter months' heating cycle pumps moisture vapor into the walls, dew points condense the vapor and mold and rot explode.  The exterior wrapping of the buildings is really an effort to cover deficiencies in the exterior cladding that leaks.

Bob Wewer discusses New Growth Wood and how, when exposed to water, organisms furiously feed on the wood that has less tannic acids than the wood products of yesterday.

Chimney Flashings are Often Neglected

It has always been a problem  The chimney sticking out of the roof takes more time to properly flash than to do half of the roof (on average).  Middlemen contractors don't pay extra for the subcontractors to do it properly, if they knew how to do it in the first place.  It is the "Underlayment Craze" that has been the answer to the problem for a couple of decades now and the problems are showing up and the contractors are out of the business.  I know, I follow up and I fix them.  It is not cheap either, especially with the associated damages from leaking chimneys.  Just about every roof has one, so make sure it is done by a sheet metal artisan.

Bob Wewer (on Chimney Flashings) discusses many issues in the trades and reading his posts will help to educate you of the potential problems that may arise with the quick air gunned-equipped roofers of today that carry the "Ice and Water" Underlayment to cover their shortcomings.

Bob Wewer has done roofing for over 35 years and only one time on one roof has he ever considered a chimney flashing good enough to retain and employ on a new installation.  One time in Lakewood, NJ and the log gone craftsman actually signed his work (that was some 30 yrs. old at that time).  His name was "Amel Otto."  Bob checked and asked around the area and Amel was a legend leaving a legacy of fine work behind him.  May Amel's name live in posterity as one of the good guys!

Not only neglected by roofers but even more by masons, chimneys are a sore spot for many that have had repair work done to them.  See Bob Wewer's post on this.