Bitumen roof advantages and disadvantages.
Modified bitumen roof problems.
Although not extremely low it is still one of the lowest out of all the roofing materials options available.
Modified bitumen roofs provide durable protection against the dangers of standing or slow to drain water.
The most common problems include.
Modified bitumen is a type of asphalt product that can be applied in a number of ways to the roof in both hot and cold temperatures.
Modified bitumen roof life defects wear common defects life of modified bitumen roof effective roof coatings.
Modified bitumen meets and exceeds building and insurance requirements.
Modified bitumen roofing has been around since the 1970s and tpo developed later in the 1990s but they both are ideal for all types of weather and have advantages and disadvantages.
The methods of modified bitumen application are self adhesive torched on or hot or cold adhesive.
The durable roofing material is also fire resistant.
Modified bitumen roof installation inspection troubleshooting repair life expectancy definition properties of modified bitumen roofing modified bitumen roofing materials products metal roof supply sources modified roof inspection leak diagnosis repair maintenance modified bitumen roof shingles superkatepal questions answers about mod bit modified bitumen roofs.
Problems with pitch pockets a type of roof flashing used to seal penetrations prevail on all types of roofs but are most typical on built up or modified bitumen roofing systems.
Modified bitumen roof defects wear signs life expectancy life extension by coating.
They typically are installed as a one two or three ply roof system.
Modified bitumen roofs are a cross between built up and single ply systems.
Roll roofing and modified bitumen are both suitable for low slope roofs.
Modified bitumen is approved for flat roofs with minimal slope but roll roofing is not viable below a 2 12 pitch two inches of rise for each twelve inches of horizontal run with exposed nails or a maybe little lower with concealed nail installation.
This article describes common defects found on modified bitumen roofs such as buckling cracking granule loss improper installation details leaks.
Manufacturing facilities due to the large number of rooftop penetrations are plagued by pitch pocket problems.
Modified bitumen cons 1.
There are many reasons a pitch pocket fails.
Additionally hot bituminous and torch applied modified bitumen roofs may experience leaks when a proper moisture barrier is not installed underneath a coping cap on parapet walls according to avoiding common roof installation mistakes a cd rom produced by the center for the advancement of roofing excellence care ltd.
The membrane consists of a multi layer sheet of asphalt with polyester or fiberglass reinforcements and plastic or rubber modifiers.
Modified bitumen has a life expectancy of 10 20 years.
