flat roof

Hi, Just after some thoughts on Rsj sizes for a flat garage roof Garage is new built single skin 6.5m x 6.5m and its got 2 pillars on the left wall and 2 pillars on the right wall evenly spaced out @ 1/3rd & 2/3rds of the way, So will need 2 Rsj's to support 6"x2" joists (400 centers) with 18mm...

Hi Wonder if anyone can advise, I have a rubber flat roof, but it has now cover flashing installed. Wondered if it's advisable to have some installed and are there any codes or specs that are advisable? Do you know roughly how much you'd be looking at getting it done? Approx 8-10 metres in...

Hi Wonder if someone can give me some advice. We had a new flat roof installed last year and it looks a good job by a reputable company. We discovered a leak recently and they come to look at it and added some sealent over the existing seal. I'm a bit concerned this isn't the best remedy if the...

Just moved in to a 1950 build house and was hoping someone could give some advice. I’m a long time reader of the forum but this is my first post! I’ve started working on a room in the house which I believe used to be the garage - which has been converted into a room attached to the house at...

My parents have had a porch built with a flat roof cut into the existing pitched roof. The walls are damp externally so I took a quick look at the roof and thought it looked rough. The dampest part is to the left of the front door. The builder has come back and squeezed a tube of silicone in...

DAMP BELOW PARAPET ON FLAT ROOF Hi! Was hoping anyone on here could contribute helpful advice and diagnosis as my family are suffering and the situation is getting us all down. We have a damp problem on our front elevation wall (first floor) which sits below a parapet wall, - the parapet...

Hi All, We have a flat roof over the porch, and there has been some water getting in over the past few weeks. It is a 50s concrete flat roof, and although you cant see from the pictures there is a drip groove which does filter a lot into the guttering. There is still a fair bit still working...

Ive had a quote to replace lead which is between the house and a flat fibreglass roof (which is also a fairly large balcony area). The original lead, I am told, was installed wrong, as it wasnt split in to sections to allow thermal expansion and contraction, so it has split. It also seems to...

I appreciate things are hard to explain without pics but here goes. I have a square house with an attached square garage (just say it is the same size as the house) but this is set forward of the house by around 2 metres. I am building a small extension to the rear of the garage so back of house...

This flat top roof porch was installed by a cowboy leaving exposed timber to the elements. I want to reroof it. What is the easiest way to do this without the use of a blow torch?!

Flat roof is in need of some tender love, confused about all the different products. Have tried some before, esp the paint-on ones (Thompson, Acrypol,Cromapol), but not sure they are that effective, esp as they are only a thin layer of paint. Spotted a video about Watco Roofite, not in typical...

Hi, I've recently had a flat roof (warm) installed by a local contractor, who used 100mm Kingspan over the main deck, followed by torch-on felt. BC now advise that the insulation is too thin: 100mm gives 0.22W/m2K, requires 0.18W/m2K. Is that reasonable? What is my recourse? can anything besides...

Hi Our soil pipe stack is leaking from a pipe joint where it enters the flat roof of our extension. I noticed a tiny pool of water on the dry roof when looking out the window today. Photos show pipe joint and leak. Upstairs taps, bath, sink and shower all drain properly but upstairs loo often...

Evening All, Iv recently had a new flat roof replaced and was wondering if the attached pictures are the norm in how there is a gap between the edge of the flat and the facia board. The wood is visible. I was told the was something called a drip ledge or something along those lines. Any help...

Hi everybody, an help would be helpful , I’ve had my flat roof replaced twice now and reboarded but after 18 months it’s started showing cracks and splits already , any ideas why this could be happening ? Im at my wits end with it Thankyou

I am in the middle of a refurb and I have taken down the plasterboard ceilings in the rooms on the top floor of my house in order to access cabling routes and get rid of an ugly artex problem. I would like to take the opportunity to put some Rockwool in the ceiling before I put up new...

Hi there, let me just start by saying I am no plumber or expert and am looking for some advice on doing my first 'big' DIY project of turning a small bedroom into a bathroom, specifically with the toilet. I want to put the toilet below the window on an external wall which is upstairs and...

Hi, I am in the process of renovating a home gym where I live and i really want to plaster board this ceiling and remove the central beam to make it a flat surface. Does anyone know if I would be ok to take this beam out? The width is 4 meters and its a flat roof with felt on it. thanks,

Hello All, I am building a workshop, the plan was for 8m x 5m which planning & building regulation granted permission. But would like to have more space and build it bigger. The new plans will be for 10m x 7m. I am stuck on the flat roof design, any advice is greatly appreciated. How should...

Hi, For an outbuilding, we have 9inch (220mm) roof joists and 4in (100mm) insulation and 18mm OSB3 boards for a warm flat roof. Based on this I think I will need at least 340mm Fascia boards - but I can't seem to find any; most seem to go up to 225mm only.. I was planning on using 18m fascia...