L bracket or lintel?

[ottosump]

Hello group, I am fitting a 90cm² window into a 4” breeze block wall, it’s a single skin non cavity on a garage, I was going to use a standard 6x4” concrete lintel to span the top with 6” bearing either side. The lintel will support x2 rows of block & the roof joists atop. However I was informed by a window company that I don’t need a concrete lintel, and they can supply an L bracket which will do a similar job. Can anyone advise on these, and how they fit?
Regards Otto, West Cumbria

 

[noseall]

They are called single leaf lintels (not brackets) and are 'L' shaped.

Some are more load bearing than others. Does this particular masonry carry the roof load?

 

[ottosump]

Thanks for the prompt reply noseall, I've included a couple of photos, basically I will be removing x4 blocks high x 2 blocks wide, leaving x2 courses at the top. The roof is peaked, with concrete marley type tiles.
regards Otto

Untitled

• ottosump
• 18 Dec 2013
• 1

Untitled

• ottosump
• 18 Dec 2013
• 1