Fitting heavy triple glazed windows safely on new buildings

[Simmon]

Hi everyone

i am trying to organize windows for a new block of flats. Some of the triple glazed windows weigh in average 350 to 450  kg on 2m by 2 m openings.

I am very worried about fitting such have windows on outer layer brick works.

is there any alternative way of fitting safely by creating an extra support on brick works or something better but acceptable by building regs.

thanks in advance.

 

[Redbeard]

Could you perhaps build them in plywood boxes like some do for EWI and fix back to both brick and block? In EWI the EWI would form the reveal, but in your case perhaps you could tape in airtight and waterproof tape over the ply 'end-grain' and cover that end-grain and tape with, say, 25/ 32mm scotia moulding?

[torre]

Do you mean safety once installed rather than handling? Taking Velfac as an example (as we'll be having them) They bridge the cavity below the window with 3mm or 5mm steel plates at the load points and the fixings are into the centre of inner leaf block work. Not ideal from a bridging perspective but at those weights hard to avoid

[Simmon]

1 hour ago, torre said:

Do you mean safety once installed rather than handling? Taking Velfac as an example (as we'll be having them) They bridge the cavity below the window with 3mm or 5mm steel plates at the load points and the fixings are into the centre of inner leaf block work. Not ideal from a bridging perspective but at those weights hard to avoid

Yes, I am worried for the weight on Brick work after installation of such a heavy windows.

thanks

[Simmon]

Yes, I am worried for the weight on Brick work after installation of such a heavy windows.

thanks

[FuerteStu]

How much would the same surface area of brickwork weigh? 

 

.... 

 

At some point a structural engineer would have signed off if the designs? No?

Edited 8 hours ago by FuerteStu

[JohnMo]

3 hours ago, Simmon said:

 

Yes, I am worried for the weight on Brick work after installation of such a heavy windows.

thanks

Where is your structural design? Should be zero need for such questions, if your building is designed.

[Iceverge]

I would sit them on a precast sill on the outer leaf. Preferably one with no more than a 25mm upstand for thermal bridging. 

 

Plenty of flexible sealant for the brickwork to window connection. 

 

Strap and tape the window to the inner leaf for security and efficiency purposes