Do you need a Price?

If you are adding a skylight to a flat roof, you must decide on whether to construct your own upstand or purchase one from your rooflight supplier.

An Upstand or Kerb is what keeps the rooflight off of the roof’s surface, and is required by building regulations for safety and weathering reasons. The upstand must protrude at least 150mm above the roof and a recommended minimum pitch of at least 3 degrees.

Should I make my own upstand?

There are advantages to both making your own and purchasing via your supplier.

Cost is generally the main reason people choose to make their own. A simple upstand can be constructed from excess timber on site minimising waste or using standard timbers found at any local wood supplier. Creating your own upstand also allows your to weather your roof without the rooflight being on site protecting it from any potential damage.

walk on cross sectionA purpose manufactured upstand benefits from improved thermal performance, weathering and air tightness. The profile has been designed and engineered to fit your exact rooflight  giving you peace of mind that your skylight is going to fit perfectly.

Our Opening Hinged Rooflight, Tripple Glazed Rooflight and Access Rooflights are all supplied with an insulated timber upstand as standard. If you are purchasing a Fixed Rooflight from us, we can provide this as an optional extra.

If you would like to build your own upstand, you can use this guide or visit our technical downloads page for specific measurements.

Looking For An Easier Way?

The easiest way to ensure your rooflight is installed correctly is to purchase a made to measure insulated upstand from your rooflight supplier. At EOS Rooflights all of our stock products are available as lid only or with optional upstand.

View our Stock Prices Today

How do i create my own upstand?

There will be lots of ways to make an upstand but we will give a quick guide to the most basic option and also show the recommended way of creating your upstand, we will not show a step by step guide as this should be done by someone with more advanced carpentry skills.

Please Note: We only recommend attempting to build this yourself if you are confident in basic carpentry.

Basic Upstand Guide

We are basing this upstand to suit our EOS rooflights – fixed (lid only). Different systems will have slightly different requirements (upstand width and frame details) so make sure to study the relevant technical drawings.

Stanley knife, level and elctric drill

Equipment Required:

  • Drill
  • Stanley Knife
  • Spirit Level

Plus:

  • Screws to fix timber pieces together. These will need to be long enough to affix two pieces of 47mm each.
  • 8 Gaskets

Materials Required:

  • Timber – 47mm (width) by 150mm (height). The total length will need to cover the dimensions of your roof light twice, plus an excess of 752mm (we’ll explain why later!).

Example:

If you have an EOS F3 (1000mm x 1500mm) unit which is 1000mm in length (A and B in the above image), and 1500mm wide (C and D), the total length of timber you will need is:

(A+B+C+D) x 2 + 752mm = 10,752mm (just under 11 metres)

You Might Also Need:

  • Furring strips – these will be useful if you need to pack the upstand to reach the required minimum 3 degree drop.

Cutting Timber Lengths:

The first step to putting together the upstand is to cut the timber to the correct size.

  • The timber kerb will need to be 84mm – 94mm in depth, this is easily achieved by screwing 2 lengths of timber together (e.g 2 x 47mm timbers = 94mm)

Width

  • Cut four lengths of timber at A and B length, plus 188mm per piece (this is where the stray 752mm comes in – 188mm x 4 = 752mm). In the given example (EOS F3), this would mean cutting four pieces that are 1188mm each.

Length

  • Cut four lengths of timber at C and D length, E.G. An EOS F3 Rooflight, requires four pieces at 1500mm each.

Preparing For The Build:

The upstand will need to be completely flat, so be certain that the wood is also sanded so that it is level and stands at a minimum of 150mm.

You might wish to check each piece using your spirit level.

Putting The Frame Together:

  • Fix the matching lengths of timber along the long side. This will create four pieces that are 94mm in width, maintaining the 150mm height.
  • Next, fix all the timber pieces together to make a box shape. This should make the inside edge of your upstand the same dimensions as the structural roof opening. Ensure the frame is square by measuring corner to corner.

Checking The Pitch:

Now that you have constructed your upstand, you need to ensure that there is at least a 3 degree drop on the roof light (at least 5mm over every metre). The maximum pitch of our roof lights is 15 degrees.

Check this using the spirit level, and if it is below 3 degrees, you will need to pack the space using furrings.

Ready For Use:

You are now ready to position and fix the upstand over the structural opening. Before doing so, be sure to measure diagonally across the opening and adjust accordingly to check that the upstand is square in line.

Once ready to affix the skylight unit, you will need to refer to your individual product’s installation guide. You can find a Fixed installation guide here.

Recommended Upstand Detail

The more advanced detail is the equivalent of creating a mini stud wall. The purpose of this is being able to insulate the inner cavity which gives greater thermal performance and sound insulation. We will not give a step by step guide but you can find some resources to assist you creating this.

Recomended timber upstand for rooflights

Have any questions about upstands? Head on over to our Contact Page to get in touch with our team or take a look at our Fixed Rooflights, Opening Rooflight, Eco Triple Glazed Rooflights, or WalkOn Rooflights for Flat Roofs pages for more information and to see our stock sizes.

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4.80 Average

120 Reviews

Anonymous

Very nice product, competitive prices and very professional communication. Having researched many similar products, I am very happy to have chosen EOS!

Posted 1 day ago

Peter Kent

From the outset I received excellent service. I enquired about fixed, opening and bespoke roof lights , both Elliot and Chris provided all the information I required. The order was placed and the deliveries were made on time. Following delivery I raised a couple of installation queries and received a speedy response. Very happy with rooflights, and Eos

Posted 3 days ago

Anonymous

Excellent product & service

Posted 3 days ago

Simon Grayson

Great company to use - very helpful with pre-order enquiries, and we’re very accommodating when organising delivery dates and details. I would be happy to recommend EoS.

Posted 2 months ago

Nuno Bernardes

Very easy transaction, great product and delivery service was fantastic. Only constructive feedback I can give is to better highlight the weight of the product and that can/will cause issues with delivery and installation. Luckily we had 6 builders on site who between them managed to move the £140kg roof light but what that meant is that we had to pay extra to re-enforce the roof with different beams

Posted 2 months ago

Anonymous

Very good product and also very good customer support I received from Elliot at EOS. I highly recommend it.

Posted 2 months ago

Pat Barry

Very easy to deal with and delivered on-time.

Posted 2 months ago

Anonymous

We were very happy with how efficiently the work was carried out.

Posted 3 months ago

Moni Liu

"Bought 2 flat glass skylights from you, You're all very helpful on the phone answering all my questions.\r\nThe skylights fit brilliantly and they are very sturdy!\r\nOur builders were surprised with their quality. \r\nPrices are very good too!\r\nThank you!"

Posted 3 months ago

Simon White-Miller

Service was good and delivery prompt and actually arrived the day they said it would

Posted 3 months ago

James Fraser

We have been dealing with EOS for over a year now and its always a pleasure. The team are always very quick to answer any questions and the information given is always accurate and really helpful. Quotes are always set out clearly and easy to understand which helps us greatly. The products always arrive well packaged and when there has been any issues at all they have been solved quickly and brilliantly. The products they produce are excellent with a customer service to match that! look forward to doing more business with EOS in the future! Thank you.

Posted 3 months ago

Altan Riccardo

Customer Service is great! Roof lights are great! Reasonably Priced!

Posted 3 months ago

Anonymous

Chris was a great help in selecting my roof lights. Quick delivery for 3 stock roof lights and the builders had them installed without a problem. The one opening roof light has not been connected so I wait to see how it works after our extension is complete.

Posted 3 months ago

Anonymous

They look fab and the customer service was great

Posted 3 months ago

Richard Coates

Very pleasant to deal with - no waiting around for someone to answer the phone - delivery process on time , so all good.

Posted 3 months ago

Ollie Chance

Order placed - Drawings received for approval - Items delivered. Quick and friendly service delivered on time and fitted without hassle. Highly recommend

Posted 5 months ago

David Whatley

Very professional and straightforward - one of the few things on our project that went according to plan and in the time frame given to us!

Posted 5 months ago

Matthew Waldren

Our rooflights from EOS look stunning and 'make' our room. Our extension is flooded with light. The electric one functions really well. We couldn't fault the service from EOS. They were so helpful, especially as we needed a bespoke size rooflight. I did a lot of research into which rooflights to buy and EOS were the most cost-effective by far, and theirs is a quality product. Thanks to the entire team at EOS. We wouldn't hesitate to recommend you.

Posted 5 months ago

Mr Walker

Great quality, looked great on top of my fibreglass flat roof.

Posted 5 months ago

Laurence Nagel

Delivered on time with in the right budget and I never have to go back to them once fitted. A superb product ...

Posted 5 months ago

Sheila Roed

Ordered online for delivery within 2 days. Not yet fully installed, but looks really nice. Contacted the office and got efficient help from Elliot

Posted 5 months ago