Nominal height the height of the lintel in mm.
Lintel flat roof.
Fastwall lintels are designed for use with midland bricks 90mm wide 3series utility bricks.
It is often found over portals doors windows and fireplaces.
The roof of the house above is traditional pitched and hipped cut timber frame with double lap rosemary type plain clay roof tiles.
A lintel or lintol is a structural horizontal block that spans the space or opening between two vertical supports.
The load on a lintel comes from.
Cost effectiveness saves on building cost as dyntek lintels are cheaper.
As standard our steel lintels increase in length by 150mm the two values represent the length of the lintel that the values in that column relate to.
The internal timber lintels above the window are known as safe lintels.
Concrete lintels usually have steel rods running the length of the beam to increase their strength under tension.
The roof load bears onto the inner leaf of the cavity wall.
Overflowing gutterjohn gilbertshading shows damp affecting lintels and roof timbers.
This type of concrete lintel is suitable for longer spans than the standard type where the weight would make them difficult to handle.
I have some pdf drawings of the house if this assists.
Lintels are classified based on their material of construction.
The ends of timber lintels are very prone to rot if the wall gets wet perhaps through gutters overflowing.
In buildings to support the load from the structure above.
If it is 600 1200 it means the load span details can be applied to any lintel between 600mm and 1200mm.
The inner lintel was made of timber in older buildings.
They are versatile available in a number of different lengths cost.
Residential use commercial use industrial use.
Open back and open back returned lintels are most common for cavity walls and suitable for standard duty through to extra heavy loading conditions including direct roof and attic truss loading.
You can buy pre stressed concrete lintels which are significantly lighter than standard concrete.
The timber first floor will be supported on the lintel and the floor span is 3300mm.