Window board replacement

[Alwayslearning22]

Hi guys, 

 

I’ve a plastic window board I’d like to replace with a mdf board.

 

Is it possible to replace it without damaging the reveals?  How would I go about it?
Ideally I’d like as little damage as possible as it walls were recently painted. 

 

[joe90]

Difficult to predict as it will be plastered in and probably glued down, you could cut it level with the reveals with a oscillating multi tool, cut any silicone along the back edge and see if you can prize/lift it up.

[Alwayslearning22]

Thanks for the reply. I was thinking of cutting it flush with the reveal like you have suggested. I wonder would it be difficult to get out the remaining sections that the plasterboard are sitting on without too much damage 

 

[joe90]

38 minutes ago, Alwayslearning22 said:

would it be difficult to get out the remaining sections that the plasterboard are sitting on without too much damage 

Why? It may well pull plaster from the wall, cut it flush and fit new board tight with a bead of caulk to cover the join. If your new window board is thicker than what’s there it won’t fit the gap anyway 🤷‍♂️

[carlb40]

When i remove existing window boards as a carpenter. I do 2 cuts in the centre to create a V shape narrow point at the window. I then carefully slide a handsaw under the window board an try to cut the adhesive, then with a sharp knife cut any sealant around the top of the board. Then use an old saw and lay it flat on the board and cut the plaster to give a few mm tolerance. You can then carefully and slowly wiggle the 2 halves free. In your case depending on when the window board was fitted ie before or after the reveals were boarded? will depend on how big a V you cut in the centre. To help minimise any damage. Cut 2 pieces of timber for the reveals and use a batten between the 2 on either side to stop the reveals from being pulled off with the window board.

[Alwayslearning22]

 

Edited December 1 by Alwayslearning22

[Alwayslearning22]

On 30/11/2024 at 15:33, carlb40 said:

When i remove existing window boards as a carpenter. I do 2 cuts in the centre to create a V shape narrow point at the window. I then carefully slide a handsaw under the window board an try to cut the adhesive, then with a sharp knife cut any sealant around the top of the board. Then use an old saw and lay it flat on the board and cut the plaster to give a few mm tolerance. You can then carefully and slowly wiggle the 2 halves free. In your case depending on when the window board was fitted ie before or after the reveals were boarded? will depend on how big a V you cut in the centre. To help minimise any damage. Cut 2 pieces of timber for the reveals and use a batten between the 2 on either side to stop the reveals from being pulled off with the window board.

Thanks for the detailed reply. 
It was fitted after the reveals were boarded. How much bigger would the V need to cut?
I will try this method. Although I’ll still probably hash it up anyway. 

[joe90]

3 minutes ago, Alwayslearning22 said:

Although I’ll still probably hash it up anyway. 

Come on, don’t be negative, we all started somewhere. Everyday is a school day 👍