Builder here, I've a job on the go where part of the building has floating corner window.
To carry the blockwork over this window the engineer has designed a lintel which is a RSJ with a 300mm flat plate welded on the bottom flange. It will be somewhat similar to a catnic lintel in cross-section.
Internally boarding & skimming will be a standard detail so I don't need to ask the fabricators prepare the steel in any way for the plastering.
Externally blockwork will cover the face of the lintel, however the head of the window reveal will have render applied over the underside steel flat plate.
So basically I'm just wondering if there is anything I should have welded/fixed to act as a key for the rendered head reveal?
The lintel will be hot dipped galvanised in the fabricators so ideally I don't want to drill/shoot fixing into on the lintel onsite and risk rust staining bleeding through the render in time.
I'm a couple of months away from have a plasterer onsite hence asking here.
Appreciate your thoughts.
To carry the blockwork over this window the engineer has designed a lintel which is a RSJ with a 300mm flat plate welded on the bottom flange. It will be somewhat similar to a catnic lintel in cross-section.
Internally boarding & skimming will be a standard detail so I don't need to ask the fabricators prepare the steel in any way for the plastering.
Externally blockwork will cover the face of the lintel, however the head of the window reveal will have render applied over the underside steel flat plate.
So basically I'm just wondering if there is anything I should have welded/fixed to act as a key for the rendered head reveal?
The lintel will be hot dipped galvanised in the fabricators so ideally I don't want to drill/shoot fixing into on the lintel onsite and risk rust staining bleeding through the render in time.
I'm a couple of months away from have a plasterer onsite hence asking here.
Appreciate your thoughts.