Hya, we had our old aluminium windows replaced with new uPVC ones in 2019 and about 2 years ago some marks appeared between the glass panes (see pictures). It appears that the seals inside are breaking down and pooling at the bottom. This is happening in most of the new windows and it has been attributed to extensive heat exposure. Well living in the UK and especially in Wales we have not had excessive sunshine. Over this winter where it has been over wet with little sunshine we find this difficult to understand as the pooling in some windows has increased.
The contractor that fitted them is having extensive conversations with the suppliers but they say they have never experienced this before.
The bungalow is extremely cold and on occasion we have heard conversations from our neighbours and also the smell of cigarette smoke . The road noise has not been reduced at all and the bass from passing cars is also very loud.
If it is of any consequence the window frames are light oak coloured uPVC and the sealant is dark brown which is shown in the pictures. Could this have an effect as we are thinking that the constitution of the sealant is faulty / not fit for purpose.
The contractor that fitted them is having extensive conversations with the suppliers but they say they have never experienced this before.
The bungalow is extremely cold and on occasion we have heard conversations from our neighbours and also the smell of cigarette smoke . The road noise has not been reduced at all and the bass from passing cars is also very loud.
If it is of any consequence the window frames are light oak coloured uPVC and the sealant is dark brown which is shown in the pictures. Could this have an effect as we are thinking that the constitution of the sealant is faulty / not fit for purpose.