Even small amounts of trapped moisture can result in your flat roof membrane detaching from the layer below and cause roof blisters.
Hot asphalt ridging roof defect.
This can be caused by.
This is the most common roofing problem and it tends to get worse during the day when the heat of the sun causes the trapped moisture to expand.
Buildings magazine examined which problems are most common and the conditions that can either cause or be the result of premature failure and reduced service life of low slope roof systems.
Solid asphalt a by product of petroleum refining processes is melted on site in an industrial asphalt kettle and applied to the roof as a hot liquid.
If the interply layers of asphalt especially one with a low softening point are too thick slippage can occur between plies in warm weather and this may contribute to ridge formation.
Hot asphalt roofing is a type of built up roofing in which asphalt forms the waterproofing component of the roof membrane.
This roof shingle damage diagnosis article describes the causes and effects of mechanical damage to shingles from a variety of sources.
Below we have identified and pictured 13 specific distresses failures any pavement.
This is not a self diagnostic guide but rather an informative list of some of the problems most often battled.
Too much asphalt makes the glue line unnecessarily thick and this may modify the behaviour of the membrane.
We are having experience in every type of asphalt pavement like municipal commercial and residential.
After all correctly identifying pavement problems and their causes is at the heart of our business.
The results of mechanical damage to asphalt shingles includes mineral granule loss from the shingles leaks or simply shorter roof life.
Obvious or unforeseen roof problems are always a pain and undoubtedly a significant expense.
When using hot asphalt as the method of application use type iv asphalt and take care to maintain the asphalt at a minimum of 400.
Flat roof defect 2 blistering.
Bleeding occurs when asphalt binder fills the aggregate voids during hot weather or traffic compaction and then expands onto the pavement surface.
Canadian roofing contractors association 2430 don reid drive suite 100 ottawa on k1h 1e1.
Install the patch in hot asphalt cold adhesive or by heat welding in accordance with the manufacturer s recommendation over the repair area extending 8 inches in all directions from any part of the defect.
With all the snow and ice over the last week on the east coast i thought it would be an appropriate time to look at some of the identifiable ways asphalt is adversely affected by weather and other conditions.
