Are Catnic lintels load-bearing?
All lintels are designed to carry a specific safe working load (SWL). If you are not skilled in the method of load assessment, or the load has not been supplied to you by a third party, for advice please contact Catnic Technical Services on 02920 337900.
Do Catnic lintels need cavity trays?
The info on this can be a bit confusing, but basically Catnic claim their lintels don’t need a tray whereas others do need them.
Do Catnic lintels need DPC?
Four: Protecting the lintel It is a National House Building Council (NHBC) requirement to apply a damp proof course (DPC) over each lintel to protect it. Many Catnic lintels feature a Duplex Corrosion Protection coating and a unique profile shape that acts as a built-in DPC.
Are wooden lintels OK?
Concrete, steel and reinforced brickwork are acceptable materials for use as lintels. Timber lintels should not be used, unless: protected from weather. they do not support masonry or other rigid or brittle materials.
Do you need lintels over windows?
Do you need a lintel above a window? In the case of a window, a lintel is extremely important since it distributes the weight of anything above the window onto the surrounding wall instead of placing the weight onto the window frame. Without a lintel above a window there is a danger of structural damage to a property.
What’s the longest Catnic lintel you can get?
Product Benefits. Standard lengths are available in increments of 150mm at lengths up to 3000mm, 300mm at lengths from 3000mm – 4800mm (including 4575 but excluding 4500mm).
How much overhang should a Catnic lintel have?
Lintel position within a cavity wall Masonry should not overhang any flange by more than 25mm.
Do I need to replace wooden lintels?
Lintels are structural elements designed to support the load from above on openings such as windows and doors. Over time, general wear, tear and age can cause lintels to fail. When that happens, repair or replacement is an urgent matter.