Roof leaks and condensation forming above ceilings.
Water intrusion roof methods.
I started my roofing and waterproofing business in austin and central texas in 1966 and have worked as an independent professional roof consultant since 1984 the investigative and diagnostic methods i have developed over the last 47 years have proven effective on thousands of roof inspections.
Structural dampness is the presence of unwanted moisture in the structure of a building either the result of intrusion from outside or condensation from within the structure.
The astm e 331 standard test method for water penetration of exterior windows skylights doors and curtain walls by uniform static air pressure difference is a testing standard that describes the procedures to determine the water penetration resistance of windows curtain walls skylights and doors when water is applied using a calibrated spray apparatus while simultaneously applying.
Astm e1105 and aama 501 2 test methods are good overall methods commonly used to test exterior walls sloped glazing and shallow pitched roofs to help identify leak sources.
Capillary penetration of fluid from the ground up through concrete or masonry is known.
The water intrusion expert.
The most common sources include.
This astm testing.
Some moisture problems in buildings have been linked to changes in building construction practices during the 1970s 80s and 90s.
Spray testing is the use of controlled water flow deposited on building components in a manner that simulates normal to severe weather conditions.
A high proportion of damp problems in buildings are caused by ambient climate dependent factors of condensation and rain penetration.
Moisture problems can have many causes including uncontrolled humidity.
This unseals the flashing and provides and easy avenue for water.
Roof consulting and building leak analysis are my areas of expertise.
Due to the evolving covid 19 pandemic the iicrc headquarters known as the global resource center grc will be closed.
Guidelines to address water intrusion problems.
Minimizing water intrusion through roof vents in high wind regions 2 of 8 r 7 oofing 12 10 mitigation guidance soffit vents key issues n it is important to keep the soffit ma terial in place.
Flooding from outside of the building.
Uncontrolled water intrusion into a building can originate from numerous sources.
The second cause of water intrusion is failed flashing.
The following primarily deals with water intrusion through the attic ventilation system components and retrofits that can be made to reduce this water intrusion.
Methods for reducing water intrusion due to roof cover loss is discussed in the what to do if you re roof and what you can do if you don t re roof sections.
Since mold requires water to grow it is important to prevent moisture problems in buildings.
Especially with epdm single ply membranes shrinkage can cause the membrane to pull apart from the vertical flashing and the roof.
