hi there
im just starting to plan out my new single story with flat roof extention and need some advice on the lintel to use above the 8ft bifold external doors!!!
in the pic attached they give instructions for a pressed steel lintel and an rsj, because there arnt many courses of block work (thermalites) between the top of the doors and the roof , will using a catnic be OK as i was worried that the lack of weight above the doors may cause problems?
also are RSJs ever used on external walls and if so how are they finished eg renderd over
cheers
jon
im just starting to plan out my new single story with flat roof extention and need some advice on the lintel to use above the 8ft bifold external doors!!!
in the pic attached they give instructions for a pressed steel lintel and an rsj, because there arnt many courses of block work (thermalites) between the top of the doors and the roof , will using a catnic be OK as i was worried that the lack of weight above the doors may cause problems?
also are RSJs ever used on external walls and if so how are they finished eg renderd over
cheers
jon