What building material should I use here?

[veedee]

I have a upvc porch.

Between the porch and my main front door, there is 5-9mm ply on the ceiling. The ply is delaminating, looks bad and needs replacing.

What building material/ item should I use to replace the ply?

 

[catlad]

Hollow soffit pvc would tidy that up, could glue straight over the top if the ply is still in reasonable condition.

 

[johnny2007]

Is it a porch exposed to the elements or a mini extension, covered from all sides and dry?

 

[veedee]

Is it a porch exposed to the elements or a mini extension, covered from all sides and dry?

Its a mini extension i.e. covered on all sides, dry and not exposed to the elements..

Are you think, what i'm thinking? Plasterboard?

 

[veedee]

Hollow soffit pvc would tidy that up, could glue straight over the top if the ply is still in reasonable condition.

Something like this?

Hollow Soffit PVC 100mm x 5m

Out of curiosity, what's the best way to cut PVC? Mitre saw? Hand saw?

 

[thomp1983]

Hollow soffit can be cut with either a hand saw or on a mitre saw, any small chipping will be covered by the edge trim.

Johnny2007 is probably wondering what has caused the original ply to delaminate as if it's protected from he elements it's a hardy material

 

[johnny2007]

Its a mini extension i.e. covered on all sides, dry and not exposed to the elements..

Are you think, what i'm thinking? Plasterboard?

Yes

 

[veedee]

Hollow soffit can be cut with either a hand saw or on a mitre saw, any small chipping will be covered by the edge trim.

Johnny2007 is probably wondering what has caused the original ply to delaminate as if it's protected from he elements it's a hardy material

Thanks

This area used to be exposed to the elements.

However following the installation of some double glazing and UPVC door the area is no longer exposed

 

[veedee]

Yes

While this area is not exposed to the elements.. This section can get a little condensed when the weather is very cold.

So my only concern is that the humidity could potential cause the plasterboard to develop mould.

However, i could counter this by adding some insulation in this section

I will weigh up my options and decide between plasterboard or the PVC. Thanks guys.

 

[robinbanks]

(if you mean just hiding the edge)

How about some of that L shaped bath seal trim that you use when the plumber made a gash job of finishing the tiles at the bath edge, and you can't face doing it all again right now?

 

[veedee]

(if you mean just hiding the edge)

How about some of that L shaped bath seal trim that you use when the plumber made a gash job of finishing the tiles at the bath edge, and you can't face doing it all again right now?

u wot m8?

 

[robinbanks]

Bath seal trim, hide that nasty edge where ceiling and frame meet. It's like coving, but smaller

I assume you're talking about the edge with all the expanding foam blurting out; if you're meaning the entire ceiling section (can't see well in that blurry ass image but it looks ok?) then a sheet material well cut to fit. If there isn't any insulation above, consider PIR backed plasterboard, or remove the existing ceiling and fill above it (you don't have a lot of room in the frame height)

 

[veedee]

Bath seal trim, hide that nasty edge where ceiling and frame meet. It's like coving, but smaller

View attachment 299201

I assume you're talking about the edge with all the expanding foam blurting out; if you're meaning the entire ceiling section (can't see well in that blurry ass image but it looks ok?) then a sheet material well cut to fit. If there isn't any insulation above, consider PIR backed plasterboard, or remove the existing ceiling and fill above it (you don't have a lot of room in the frame height)

Now I get you.

The whole thing needs tidying up

The ceiling section is made out of thin ply and it has delaminated in places. It has been nailed timbers above

I will peel back the ply and run some cable and place mineral wool insulation (approx 170mm), then overboard the ply with either plasterboard or PVC soffit board

The edges with the expandable foam will be cut back.

I planned to just silicone some Flat PVC trim to the edge but I like your idea of using bath seal

Yes the picture was terrible, so I added a less blurry one.