What holds conservatory roofs down?

[WabbitPoo]

We have an old-ish cons on our house, not installed by us.

When its windy (we live on Anglesey, so windy quite often) the roof panels flap about along their bottom edges, emitting loud farty noises and letting in a lot of cold air.

They seem to rely on being stuck down by gravity, so last year I ran some sealant along them, which only held for a few months.

this is the outside...the white trim (arrowed) is an L shaped trim, stuck down with sealant (several have blown away)


This is the view inside, arrowed are the edges that flap about.

Is there something I could screw down on the roof to keep these panels in place?

 

[motorbiking]

Its not clear from the photo, but could you not use some polycarb fixings and sealant?

 

[WabbitPoo]

Thanks. I'll nip up on a ladder and take a look at what I could screw into

 

[Mw Roofline]

The sheets ‘float’ only the bars are held down. The poly will be quite brittle now so if you decide to use buttons then pre drill it first. I’d just take off the white sheet closures and re fix with adhesive and then from the inside gun the adhesive under the poly from left to right. Lift the poly up from the inside as you gun along so it squashes the sealant as you release it down again. Don’t use silicone, use an MS Polymer.