Study natural ventilation hvac systems for all project types.
Safeira how two different roofs.
Pick the right strategies.
Charts within the sefaira app offer insights into several different values such as monthly peak cooling and heating demands water use etc.
Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss.
Proper waterproofing is a must.
The monthly consumption chart in particular tells us what we d like to know.
Energy use intensity or eui is a building s annual energy use per unit area.
Two main types of roofs are flat roofs and sloping ones.
The u value characterizes the amount of energy that can be transferred by a material.
Valleys can allow water to pool.
A gambrel roof usually contains a gable at each end just like a standard gable roof.
The lower side of the roof will have a steep slope almost vertical while the upper side of the roof will.
A type of roof containing two sloping planes of different pitch on each of four sides.
The lower the u value the greater the material resists to heat flow and its insulation properties are better.
The lower plane has a much steeper pitch than the upper often approaching vertical.
It is typically measured in thousands of btu per square foot per year kbtu ft2 yr or kwh m2 yr.
The sides come together at the top to form a simple ridge.
To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition.
Eui is useful for comparing the performance of buildings across sizes types and locations.
The line where the two roofs meet is called a valley.
The most common type of a hip roof.
However a gambrel roof only has 2 sides while a mansard roof has 4 sides.
Here s how to think about the two different slopes.
The u value unit is w m2 k.
Having two different temperatures on each side of an area creates energy transfer.
In some ways it is similar in style to the mansard roof discussed above because it has two varying slopes.
The lower plane has a steeper slope than the upper.
Compare massings layout and envelope options.
At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing.
The flat roof see the figure has historically been widely used in the middle east the american southwest and anywhere else where the climate is arid and the drainage of water off the roof is thus of secondary importance.
Similar to a cross gable roof.
It has a polygon on two sides and a triangle on two sides.
Use separate hip roofs on homes with different wings.
