condensation

I really really need help/advice. Last summer I got new windows and then in the winter noticed water drips along the wall/ceiling (see below) we thought maybe the windows were now much better and not letting any air at all escape, so we added vents (as seen in picture) we had no problems all...

I’m looking for some help and advice. I live in a new build and we have a problem with condensation, mould and damp plasterboard around the bedroom windows in the winter. It doesn’t matter what we do inside the house or even if the windows are left slightly open. Once the temperature drops the...

I'm building out a Luton van to live in (pic attached just so you get idea). I wan't a lot of natural light. Campervan windows are too expensive (I might get a couple but want more light than that). Proper double glazed windows cost too much too, even for just the glass, and I'm also trying to...

I have recently had a room decorated in my old Victorian terrace house, where there is a chimney breast. The wall covering the chimney breast was previously covered with old lining paper so I was not aware of any damp issues. A few weeks after decorating during some cold and rainy weather, some...

I am going to run a dehumidifier in the loft when the weather is at its coldest and would like to know if anyone knows the science that would help me set the humidity detection to the right amount. Example; operate to dehumidify to 60% and operate when 5 degrees celsius or lower. I want to...

Hi there, We moved into our new house last winter and noticed water on the ceiling of a small extension to our kitchen. At first, we thought the roof was leaking, so we replaced the felt roof. However, we now realize it's due to condensation. I want to fix this before winter, but I'm unsure of...

Hi, Has anybody done a steel portal framed shed with timber purlins/sheeting rails and clad the outside with 40mm or so of PIR insulation then just fixed single skin steel sheets right onto the PIR with longer fixings? No extra plywood/OSB, battens or breathable membrane? Planwell seem to...

Hi everyone – I'm looking for some advice on our 1910 solid brick wall terraced house in the UK which we are planning to renovate. Unusually, it has some prefabricated 105mm thick concrete dormers and I'm not sure how best to renovate them. We are in a conservation zone, so have no choice but...

Hi. I'm looking for some advice on some internal air vents that I have. It's an old house (1900/1910) and has a couple of big bay windows. The pictures show 1 example where I seem to get a lot of condensation. On this example, there is an existing external air brick fitted. Internally, the...

This is a 100+ years old Victoria house and I did a total renovation of the house + side extension in the kitchen. The problem is, we got condensation issue on the ground floor in the kitchen after side extension. We have been battling on this issue for 1+ year. At the beginning, we add a...

Hi there I'm planning to install a PIV system, but since we have a loft conversion, installation on a landing is not physically possible (the loft conversion is over the first floor landing, and access above the second floor landing virtually impossible (and the landing itself is less than 1m2...

Moved in 2 years ago, and had condensation issues in winter, in the rooms with external walls (rooms which have the the four corners of the house). Would an air vent fix this issue, also I was thinking of a hit and miss vent in each of the rooms, but fitting an air brick would be difficult to do...

Hi all, Looking for some advice on this as it's frustrating to say the least! North facing bedroom. House is a 1950's built semi. Been here 15 years. No major issues with damp in that bedroom during this time apart from tiny (and I mean tiny) mould spots appearing over the coldest of...

Hi all, First off - I've read the pinned condensation in loft thread and I reckon that answers my condensation / insulation related questions but have 3 Qs for those more experienced than me! I live in a Victorian terrace and I'm getting issues with condensation damp on my bedroom ceiling and...

When it's very cold, moisture drips from the felt under the tiles of the roof. It could be up to 50 years old (70's house) so it will not be breathable. No issues whatsoever during the heaviest rainfall. Currently, there does not seem to be any source of fresh air (no eaves providing this) so...

Hi all, We live in a 1930s semi, we have an old chimney flue outside (old cooking flue?). A this time of year we always get condensation on the inside bedroom 3 wall, definitely not damp as it dries out very quickly with a window being open (difference inside to outside temps). We've had the...

I've had my loft insulated and boarded recently to turn into a loft room. It's only been 5 months and I now have this brown sticky substance coming out but only in one place. I've cut a hole in the new boarding to see what's going on but it feels quite dry. We have a newish roof without any...

I'm actually in Sweden but I'm a brit so thought I'd try on this forum. We have an old (150 yr old) log cabin which I am renovating, currently insulating the upstairs. 2 x 4 stud walls with 100mm celotex between studs, VCL, then 50mm Celotex over studs. The walls are very uneven so there is a...

Long story short, we have: 1950s house Double glazing, only about 10 years old, good condition. No condensation between the panes. Trickle vents OR openers that we leave open a crack during the night Two adults in the house, no pets High outdoor humidity (it was 91% RH last night!) and humidity...

Hi all, Thanks in advance for helping. Basically, as can see from photos, we have damp patches on our chimney stack. It's out of use and tops have been capped few years back (before our time). You'll see from photos damp is in 2 rooms, that are back to back, and share the chimney stack. 1 of...