Residential low slope roofing can generally be divided up into two broad categories.
Low pitched green roof.
The reinforcement adds strength makes the roof system more resistant and increases the dimensional stability of the membranes.
This pitch might be as low as 1 12.
Before the plants go up a structural engineer should check to ensure that the roof can support the weight of the engineered growing medium and plants.
The most crucial component of any sloped green roof is the confinement system which holds the growth medium in place during the roof s early stages of development.
If not properly secured a pitched vegetated roof can erode and slip under heavy rain excessive irrigation or poor plant growth.
Roof reinforcement due to the challenges that low pitch roof systems face low pitch roof design should have necessary reinforcement.
Finding the right products for your low slope roof.
Sloped roofs retain less water in general and the moisture content varies from the ridge to the eave lowest edge of the roof.
Above 5 degrees roofs are considered to have a pitch which may affect the design.
In our photo left the roof slopes less than 1 per foot notice that dark ponding area at the center of the photo.
Planted sloped or pitched roofs look great and due to their high visibility they have been the focus for several new projects.
As a result of its poor draining capabilities low slope roofs tend to develop leaks faster and require regular maintenance to prevent leaks from happening.
Roofs on victorian era houses were often sharply angled with a steep pitch.
Snodgrass timber press incorporated.
In order to achieve lasting success with a sloped extensive green roof there are a few basic things to consider.
This is because water tends to be stagnant on a flatter surface of a low pitched roof as compared to high pitched ones that lets the water flow freely downward.
Think of a classic addams family haunted house with its soaring peaks and you have a.
Flat roofs 0 to 2 in slope are flatter than low sloped roofs and pitch just enough to drain water.
A resource and planting guide edmund c.
It was fashionable for modern style homes built in the 1960s to have little pitch just a barely negligible slope to help drain water.
For a green roof installation that pitch should be at least inch per foot of run.
Most vegetation will grow on quite sever slopes but the designer must consider the practicalities of installing the green roof and just as importantly how the roof is to be maintained.
Hence this is one of the basic components of this kind of roof.
Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically.
Even a flat roof should have some pitch so that it sheds water toward gutters.
