Most self build projects typically utilise the ETS room-in-the-roof attic trusses. To ensure the construction process runs as smoothly as possible, ETS offers a full design service to assist self builders, from conception through to project completion.

Below you will find a list of frequently asked questions (FAQ’s) that ETS has encountered over the years. If our FAQ’s do not fully answer your query, please get in touch and a member of our helpful team will endeavour to deal with your question.

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Q: How do we get started?

The first step in a roof project is to investigate the need for planning permission. If required, the most effective way to gain planning permission is to employ the services of an architect.

ETS can assist with the preliminary designs to help determine whether or not the roof can be engineered within the constraints of the site. Our design will provide a good idea of what is possible in terms of room sizes, head heights, stair access and positioning of dormer windows. A set of drawings can then be produced and submitted for planning.

ETS will provide a guide price for all structural timbers for your roof project. This guide will help you allocate and manage the budget required to complete the build.

Q: We have planning permission, what’s next?

Once planning for your project has been approved, ETS will use the initial designs to create a more definitive plan for the roof project, taking into consideration any constraints that may have arisen during the planning permission process. An accurate quotation for the required roofing materials will be produced and sent to you for approval.

Q: What if I need advice on site?

Many of the projects ETS supplies require additional build advice and support. To cater for this demand we give customers the option of an onsite visit from one of our experienced designers. As part of this onsite support service ETS can help with measurements, roof designs, coordination of roof truss delivery and erection scheduling.

Q: How do I find a carpenter to erect the trusses?

Over the years ETS has built up a strong network of highly qualified and reputable carpenters who we have worked closely with on past build projects. If you would like any recommendations for local carpentry professionals, please let us know and we will send you the relevant names and contact details.

Q: I want to convert our roof into an attic room, how can I do this?

ETS is highly experienced in supplying trusses for room-in-the-roof (Attic Room) projects. If you are considering converting void attic space into a usable living area or bedroom, our experienced team of roof designers will be more than happy to provide you with detailed advice on how this can be achieved.

Q: What do you supply if I buy from you?

ETS provides far more than just timber roof trusses. We offer a broad range of essential products and services to help you achieve the best possible result from your build project.

Our experienced team are qualified to help in any of the following areas;

  • Full design, manufacture and delivery of a wide variety of roof trusses
  • Bracing
  • Metalwork
  • Laminated layout drawings
  • Expert advice and build support, both pre and post delivery

Our designers will work with you beyond the delivery of your materials. They will be on hand to offer advice throughout the whole project, ensuring any questions or concerns that arise along the way are dealt with efficiently.

Q: Can you design a flat roof?

By utilising our Easi-Joists, a precision designed and manufactured joist system, click here we are able to design flat roofs. ETS is an increasingly popular choice of supplier for flat roof projects as a result of the vast experience we have with Easi-Joists. Take a look at our case studies to find out more about our past project success.

Q: My electrician/plumber is running wires/pipes in my roof. Can he drills holes in the timber to feed them through?

STOP! You should never cut, drill or alter roof trusses. They are assembled from the highest grade of structural timber and have been specifically designed and manufactured to support your roof. Any alterations you make may lead to design failure, resulting in hundreds of pounds of additional engineer design fees and extra timber support to ensure the structure is strong enough for the roof load. There may be a way round the routing of services, please get in contact with a member of our experienced team prior to making any amendments.

Q: I don’t feel confident enough to produce a roofing plan with the correct specifications for you. What should I do?

Contact ETS for advice! We have a very experienced and helpful team who are more than happy to assist you.  Our experts will aim to deal with your queries over the phone initially where possible. ETS can also arrange onsite visits during which they will produce accurate drawings for your project. Using this drawing, we will then provide you with a quotation for the supply of your roof trusses and supporting materials.

Q: I have received my roof truss delivery. How long can I keep them exposed to weather?

Roof trusses should be installed and covered as soon after delivery as possible. If stored, they should be placed on bearers to keep them clear of the ground. ETS does not recommend leaving trusses uncovered for longer than 1 month. Roof trusses that are exposed to wet weather over a prolonged period of time can weaken.

Q: You don’t appear to have supplied enough infill timber with your roof trusses.

All of the truss projects designed by ETS carry sufficient infill supply (on larger projects we even include extra lengths of infill timber) so please check the ETS Infill Timber Installation Drawing and compare it against the cutting list supplied with your delivery. If you follow both the drawing and cutting list correctly, you will find there is sufficient infill timber for your project. If you still have concerns regarding the supply of infill timber, please contact a member of our team who will gladly assist you further

Q: I’m putting attic trusses on my house conversion. As I don’t intend on using the attic space until a later date, can I cut a stairwell opening in my trusses after installation?

Any retrospective alterations to trusses can become very complex and expensive. ETS highly recommends that you incorporate your intended stairwell opening within the initial design of your attic roof. Although it may seem that doing so incurs extra cost for your project as the stairwell isn’t required straight away, it will be much cheaper than the structural engineering fees at a later date.