Verdigris
Member
- Messages
- 4
- Location
- Gloucestershire
This is an upper floor window of our Cotswold stone house. It’s at the west-facing gable end.
When there is driving rain from the west it gets in above the window frame. Above the window is an oak lintel. It's pretty ancient and there are gaps where it meets the masonry, I think this is where the rain is getting in.
A neighbour found that linseed oil putty worked with his leaky door lintel. But looking into it further, I think the appropriate materials in this case might be oakum and/or burnt sand mastic:
https://www.greenbuilding.co.uk/GBF...1/burnt-sand-mastic-application-advice-please
I'd be glad to have your views.
As a separate question, is burnt sand mastic a suitable cosmetic treatment for oak beams with shakes?
Verdigris

When there is driving rain from the west it gets in above the window frame. Above the window is an oak lintel. It's pretty ancient and there are gaps where it meets the masonry, I think this is where the rain is getting in.
A neighbour found that linseed oil putty worked with his leaky door lintel. But looking into it further, I think the appropriate materials in this case might be oakum and/or burnt sand mastic:
https://www.greenbuilding.co.uk/GBF...1/burnt-sand-mastic-application-advice-please
I'd be glad to have your views.
As a separate question, is burnt sand mastic a suitable cosmetic treatment for oak beams with shakes?
Verdigris
