Bubbling of internal wall staircase

Hi there we are in the process of getting the vanleigh out of storage and noticed some hard bubbles to the touch on one in side wall any advise input appreciated on how to fix and cause thanks

The wallboard is just 1/8" thick Lauan with a wallpaper type covering. I don’t think you can easily repair a small section and would probably need to replace the entire panel.

The pattern is strange looking and doesn’t look like typical bubbling from water damage, especially since you mentioned it seems to be hard to the touch.

For replacement I’d start with checking with Vanleigh as they could provide the right part numbers they used for the interior wallboard. Those panels are usually 4’x8’ in size and may not be easily shipped. Another option could be to check with the Tishoming service center as they may have information on the material used.

Thanks Stuart, I was thinking meanwhile to reseal around the window above form the outside with clear dicor

Hi there ok I started sealing the left and right side of the outside window with Dicor will finish the rest now I’m home with a big ladder 100 degrees touching up the delam of the top coat on the nose

Do I need to seal the inside and rubber also thanks

Awesome thanks Ryan, Yes im thinking to go around the top top corners and sides again with clear decor now i have a big ladder. to stabilise the issue, the awning is just above. appreciate all your infomation

Hi Ryan just to give you an update I used clear Dicor around the outside of the window and will do a second bead once the temperature drops, the bubbling has vanleigh stumped but will take you suggestion as we did has a little heavy rain back in Cali during a storm 18 mths ago may have penetrated

Thanks Ryan for all your help and knowledge, fingers crossed I have my honeydo list for the winter when its not 101 degree outside to complete for next year