Part 9 of a video series about how to self-build a timber-framed garden room office (aka tiny house)/wood workshop in the UK.
This video covers cold roof vs warm roof, firring strips and roof joists.
The purpose of this video series is to provide all the information required for viewers to build their own garden room rather than just a montage of the building work. It took me months of research to learn everything in these videos so I hope to save people time and money.
The videos are a mix of theory and footage of the build including all the mistakes I made along the way. I am not a builder or tradesman, just a keen DIY-er with some basic tools. Everyone can do this!
In the longer term, I hope to turn this channel into a community for garden room self-builders and to eventually evolve into a woodworking projects channel – the real purpose of my garden room!
Garden room ideas: workshop, office, games room, cinema room, art studio, music studio, yoga retreat, spare bedroom, annexe or run a home business such as yoga classes or hair salon.
Associated website: www.alidymock.com
Tools used:
Circular saw
Mitre saw
Impact driver: https://www.screwfix.com/p/erbauer-eri6041pd-18v-2-0ah-li-ion-cordless-impact-driver/7485f
Hammer
Tape measure: https://www.screwfix.com/p/stanley-tylon-tape-measures-8m-16-pack-of-2/2086h
Pencil
Clamps
Speed square
Ladders
Tarpaulin
Safety: gloves, eye-wear, ear protection, dust mask
Materials used:
225 x 47mm C24 timber x 6metres
Screws 100mm
Nails 100mm
Angle brackets: https://www.screwfix.com/p/sabrefix-heavy-duty-angle-brackets-galvanised-90-x-63mm-25-pack/69361
Square twist nails 30mm
Trada span tables:
https://www.trada.co.uk/ad-hoc/span-tables/
Kingspan U-value calculator:
https://www.uvalue-calculator.co.uk/calculator/
Good websites to check prices for materials :
https://www.selcobw.com/
http://www.builderdepot.co.uk/
Music:
Hi Ali. I’m in the US, so your meters and mm were different than I’m used to but great video for flat roofs! 😀
Hi Ali can I ask did you use 1 or 2 angle bracket each end of the joists or just one a side at each end?
hi what sized screws did you use to build the stud walls?
How much did it end up costing you to build?
So I have been swayed to go for sloped joists so I can have a warm roof and not have to add the added depth of firing strips… What did you do about the angle on your front and back walls? the joists surely only rest on part of the walls as the top plates will be square? Hope you can help me! thanks 🙂
Bit of advice for those following Ali's excellent example.
At 13:48, Ali mentions that although he used the same sized timber for the fascia boards as the joists, it might be sensible to use thinner lighter timber.
I went ahead and used thinner 22mm thick timber and am now regretting it as there's little to secure the above layer of OSB to around the edges. I'd recommend going with the 45mm thick timber, although it is heavier and a little more expensive.
Hi Ali – quick question about a cold roof. If there should be a 50mm gap between the insulation and the roof board, does that mean the noggins between the joists need to be 50mm shallower than the depth of the joist – to allow air-flow?
Love the videos, really inspired me to kick start my huge project. Im looking at 8x6m plus overhang. do you know where I can get roof joists with that span or even find span tables that cover 6+ meters. will you be covering supplying electric etc to your building in a later video? Thanks 🙂
hi Ali the span of my garden room is 3.04m x 3.96m I thought 47mm x 170 would ok for roof joists? what do you think? cheers Angelo
Really really great videos and perfect timing as I'm digging out for my garden room slab at the moment. I might have missed it but how do you create the roof pitch? I get that the front wall is taller than the back but what about the sides as I assume the top plate is horizontal not sloped?
Amazing. This is exactly what I'm doing over the coming weeks and without your videos I would almost certainly have fucked it up. Feeling much more confident about it now thanks 😀
Thanks for taking the time to make these. I'm starting a similar project and not having done one before it's pretty daunting. In depth videos like this are a great source of information (and confidence!) Can't wait to see the finished project but enjoying the stage by stage process. Great work – thanks!
Hi Ali . Many thanks for your great Videos. Simply some of the best guidance videos I have seen. Coupled with great knowledge and explanation. I am currently starting to design my own 6m x 4m Games room. Coming across your work couldn't of come at a better time. I shall be taking your advice on-board in my own build. Can't wait to see your finished room. Keep going it's all worth it.. Thanks again
WTF is a millimeter?
Great series of videos, from foundations to the roof. I haven't seen any footage on Youtube so logically laid out, perfect format. Guys like that should organize workshops, it would be beneficial for both sides…
First the all. Awesome job and video. I'm been looking around to find information and you are the BEST by far. Can you tell how much it cost you? To have an idea of how much I Need. Mine will be 6 meters wide 4 meters deep. And as you I want to do 1 toilet with shower inside. Thank you very much
Outstanding workmanship. If not a little to precise for what I need but I've certainly got a better understanding of setting out my new build… 16×12.. especially looking forward to the weather proofing stages
Great work
This is so great. Thank you for posting. I have been looking for examples of this being done in the uk rather than just the states for ages.Can't wait for the next instalment.