How to cap end of glazing.

[Dantheman123]

Hi ?

Contractors have left today and curious to know if the ends of glazing should be left like this...

[Big Jimbo]

IMO should have end caps on.

[Dantheman123]

It was a sealed unit like a window and they had to cut the bottom of as someone messed up measurements I assume. Want to clue myself up before I start asking questions to the contractor.  So do these ends need to be sealed? And if so is it and easy job?

[Russell griffiths]

I would also be concerned with the flashing ( or lack of) on top of that wall, you will need a trim to come down the face of that wall as when it is rendered water can penetrate the tops of the blocks. 

[tonyshouse]

I ALWAYS oversail the top sheet by 75mm 

[Dantheman123]

That has been left to another trade, they are coming back in the morning to finish that off.

 

So in regards to the ends of the glazed panels can they be left like this or can there be end trims installed?

 

[PeterW]

Trims are missing from the ends of the roof rails also. Glass should be covered as without it the seal will degrade. 

[wozza]

As others have said - the trim is missing - the black tape is what they use to seal / edge double glazed units - most double glazed units have a tape edge seal that is then protected / hidden by the trim and rubber seal. 

[Dantheman123]

Thankyou for this, so much help. What do you the trims look like, how do the trims and the side rails become weather tight?

[MikeGrahamT21]

They look something along these lines: https://www.trulypvc.com/conservatory-parts/conservatory-roof-bars/bar-end-caps/ultraframe-reca001-glazing-bar-end-cap

[Dantheman123]

Sorry I meant for the glazing, do they just slip on and cover tape?

[MikeGrahamT21]

Ahh sorry, these are U shaped channels which usually just push on, installers generally put some silicone in there too for some additional hold

 

Like these: https://www.ebay.co.uk/itm/1m-Ultraframe-25-35mm-End-Closure-Polycarbonate-Glass-Conservatory-Sheet-Trim-/372644260156

 

Edited April 23, 2021 by MikeGrahamT21

[Dantheman123]

So do these slot under the side rails or butt into and then seal between the two?

[MikeGrahamT21]

Yeah they butt up, bead of silicone to cover joint and then on with the end cap to cover and protect everything

[Dantheman123]

Brilliant, thanks for this guys! 

 

Can the lead that wraps over the parapet be glued to pvc as seems that with a bit of wind it and heavy rain it would be trouble.

 

 

[tonyshouse]

Big trouble there !!! Lead leaches lead oxide in rain water, even architects don’t know this, it is chemistry. The lead oxide in water etches glass! Leaving apparent white stains that won’t come off. 
 

two remedies, a) remove the lead, b) patination oil on both sides of the lead every six months - not recommended 

[Dantheman123]

What is an alternative though?

[tonyshouse]

Does all the water run off the flat roof and down the glass? Or does the water go to a gutter or outlet somewhere else? 

[Dantheman123]

There is a parapet on the flat roof to take the frame and glass. So the only rain will be from the natural fall of it. There is a new gutter for all the main roofs above so that will get diverted away from lead and glass.

[Dantheman123]