We are looking to do extend a 1920s bungalow into a chalet bungalow and noticed a relatively new company, U-Roof who manufacture the roof onsite and deliver it for a very quick and easy installation. I thought it would be a good solution due to the speed and also that it is lightweight (so hopefully may help the foundations) and is supposed to give more room in the roof than traditional methods.


I wondered if anyone had heard of this and had any reviews etc.

many thanks for any help

  • Neil Suggett

    We used U-Roof for our room in the roof construction on our three storey self build. The roof was a complex multi-hip design with raised eaves and the footprint of the house incorporated 14 internal/external corners. Our Structural Engineers proposed 4 structural steel extended A frames to deal with the raised eaves tied together by steel cross ties and completed with cut timber rafters and joists.
    U-Roof were able to provide rafters, raised eaves and joists all fabricated from galvanised steel and delivered in a series of factory made panels to be fixed together on site. The U-Roof solution came in about half the price of the alternative structural steel and timber route.
    Points to note- 1. U-Roof rely on using Computer Aided Design (CAD) allied to Computer Aided Manufacture (CAM). So you must provide completely accurate drawings to them and you need to supplement them with precise on site checking of all dimensions particularly diagonals of the wall plate that the U-Roof structure will sit on. You will need to check with a laser that the wallplate is level to within a few millimetres. The U-Roof structure when assembled will be accurate three dimensionally which is not something you can say of a typical masonry build. (We were very fortunate to have a fantastic Builder who was able to build two and a half storey masonry walls to tolerances of a few millimetres). 2. Establish and maintain a close working dialogue with the U-Roof Designer and do bear in mind that once you sign off the dimensions/design for manufacture you are committed to that precise design and site alteration or bodging could be very difficult or impossible. 3. Look at the warranty/guarantee available for the product. 4. Think seriously about insulation as you do not want even galvanised steel subject to condensation. We went for a "warm roof" solution putting PIR insulation sheets on top of the steel rafters and insulating between them. 4. Installation is best done with their help as most Builders will not have seen this before. We paid for an excellent Installation guy to come to the sight who led my Builder and his mates through the offloading and assembly process which took under two days to have the main structure assembled. It was one of my best decisions in the whole build. 5. You need some decent lifting gear for speed and safety. We used a large truck mounted Hiab type extending crane plus skilled driver which got the articulated lorry load unloaded and lifted up ready for assembly in about six hours. 6. Your local Building Control guys may also not have seen this product before and will ask for Structural Calculations which U-Roof should supply. If this was a new build with a Warranty from LABC, Build Zone or the like you would also need to fully inform their Site Inspector in advance though he/she will probably be happy when Building Control approve. Good Luck. Neil S.

  • Amanda Q

    Hi, Neil,
    I’m interested in using U roof for a bungalow extension project. The preliminary quote from U roof based on my sketches are very attractive. However, could you advice how did you find a builder who are willing to work on a system they have not used before. How did they give you quote with no previous knowledge? I’m finding getting a contractor is the most challenging part!

  • Neil Suggett

    Hi Amanda,
    Sorry for delay in replying- plot hunting is very all consuming at present.
    I know David Snell always says that you should get a fixed price for a particular job and that is true for say plumbing and electrics where the labour and materials are normally easy to define and price. As U roof is a new system very few builders will have seen it so they will understandably be very wary of trying to price the job even on a labour only basis given you will buy direct from U Roof.
    For us the solution was to pay for the work on an agreed day rate basis so the builder knew that he was not taking on any risk and allied to this we hired in U Roof’s first rate Installation guy (again on a day rate basis) to lead our Builder and his two mates through the process of assembling the structure.
    We were very fortunate to have our builder recommended to us and he built the house for us from site clearance through to water tight shell. Most importantly he had a network of trade contacts that he had regularly worked with and knew would do a good job. This could be a clue for how to find a decent builder. Get a recommendation from someone in the trade such as a plumber or electrician who you know to be highly regarded and ask them who they would use.
    Hope this helps,
    Neil S.

  • keith crosby

    Hi Neil,
    Have you experienced any ongoing issues with electromagnetic waves passing through/around the structure to electronic equipment as the metal roof and floor mesh could potentially act like a faraday cage shielding such signals.

  • Steven Horridge

    Hi Keith,
    I’ve had a U-Roof system installed for over 3 years and have had no problems with electronic equipment. I have a NAS drive along with a router in the loft area and several Sonos components dotted around the house. My roof comes down to ground floor level and I have a first floor so the structure is quite large.

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