Recent content by boon81

There's never any clear cut answers when searching how to implement projects - many people have different ways of doing things. In my mind 150mm of solid insulation ie Celotex, kingspan etc is above building regs. There is no cold bridge as the 50mm (2400mm x 1200mm) sheets of celotex will lay...

Many thanks. There is air flowing in through soffit but a roofer said pointless unless vented at the top as well so it flows. I worry alot so will allow for ventilation, batten out the rafters to take 100mm celotex with 50mm airflow, then add further 50mm celotex on top and counter batten to...

Hi, just about to fit velux, insulate pitched roof in picture. Being closed boarded and the fact that i removed rock wool that was completely filling the voids can i use 100mm celotex or 75mm and leave 25mm gap or 50mm and leave 50mm air flow gap?. Obviously with the later choices could also...

Hi, just installed aqualisa colt consealed shower COLT001CA and the control unit on the wall constantly weeps water. Its brand new so hard to believe its the O ring on the cartridge. To me it looks like the seal between the cartridge and housing plate isn't sufficient enough. The large rubber...

Thanks!, behind that wall is the chimney breast and speaking with some of the neighbour's they have had same problem. There are no branchy tendrils on the brickwork or beams. The beams are damp but solid, if it was efflorescence then the salt from the mortar surely dissipated by now and would...

Any ideas what this is and how to cure it?

Thanks, ill get a pic. on here

Wonder if anyone can help, im in an end terrace 1930s house, I have only one brick wall in the loft that is the chimney wall. The rafter and beams next to the wall are wet and there seems to be a white Fungal growth on the wall and where the beams meet the wall. The fungi or mould is like candy...