Along with the benefits of a flat roof come unique challenges.
Roof water drainage systems.
It is necessary to prevent water dripping or flowing off roofs in an uncontrolled manner for several reasons.
Buildup of rainwater on a roof can cause structural damage and leaks.
To prevent it damaging the walls drenching persons standing below or entering the building and to direct the water to a suitable disposal site where.
Unlike other roofing types that are slanted or sloped to allow water to drain automatically flat roofs need a built in drainage system to help remove moisture and debris.
Draining water away from your home starts with installing a sound gutter system that has extensions to carry the water away from your home.
Beneath the growing media and above the drainage system the filter fabric keeps the media from clogging up the drainage while allowing water to flow freely.
Your building and location can help determine which drain will fit your roof needs.
Quickstream siphonic roof drainage.
Choose siphonic drainage when you need to drain large rainwater volumes from flat roof tops quickly and efficiently.
The one challenge with flat roofing is ensuring proper drainage.
An important consideration with filter fabric is the promotion of the flow rate while preventing media runoff.
In fact a single inch of water on a 20 square foot area of the roof weighs 2 000 pounds.
It is important for architects plumbing engineers and civil engineers to work together to design a system that will properly drain rainwater from a building and site.
That is a challenge for architects to plan around so roofs need to drain water as quick as possible.
Without adequate drainage excess water can damage your roof walls foundation and landscaping.
Inner roof drains are used on flat roofs and include a low section or channel that collects water and feeds it into a concealed drain that leads to an underground drainage system.
Adding a gentle downward slope to the ground around your home is also helpful.
Green roof solutions has a 3 5 oz filter fabric ff35.
The main benefit of inner drains is that the system is hidden from view.
A rain gutter eavestrough eaves shoot or surface water collection channel is a component of a water discharge system for a building.
In severe cases of deep ponding water or water and ice and wet snow on a roof with blocked drainage the weight of the water and ice may conspire with hidden rot or insect damage such as from prior roof leaks to cause catastrophic roof collapse a very unsafe condition.
Typically used on large industrial and commercial roofs it is a cost effective substitute for traditional systems.
Improper gutter drainage can cause erosion of soils and foundation issues.
Poor drainage can lead to serious issues with flat roofing from leaks to structural damage.
