How to make a flat roof fall. Simple quick firring pieces
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- Опубликовано: 10 дек 2023
- How to make firrring pieces simply, quickly and accurately
I show you how I make Firring pieces for a flat roof
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Everything Robin does is gold. As an experienced chippy myself, I didn’t think I needed to watch a video on cutting firring strips. But lo and behold, I’ve learned a new way to do it!
Thank you for your kind comment Henry, love it when experienced carpenters like you watch my channel, I bet that if I worked with you for a few days there would be little tricks that you would know and I would learn!! That's the beauty of our craft!!!
Robin is like the Ronnie O Sullivan of carpentry! So quick and naturally talented. 🙌
Aaaaargh! Really, really wish I'd seen this vid 24 hrs ago, Robin! Just tried my first ever attempt to cut firring strips from 45x95 C16 using a table saw. Each piece is just over 3.6m so it was tricky to keep the blade on the line (or vice versa). I could've made a much neater job doing it your way and I would only need to handle timber about 1.8m long. Live and learn I suppose. Thanks for a great video!
This is the problem with you trades, you tell me one year after I've bought them. Typical. In future please predict my requirements.
From a carpenterwho's still in his 30's but had to retire due to illness I just want to say how much I love your videos and would have loved to have you as my teacher when an apprentice. A credit to the trade robin!
Thank you Carlos!!
Lovely Hilti saw ripped that no drama, plenty of grunt. Yet another fantastic tip and video from a gent and a true craftsman.
I’m 7 years in but no longer have the old boys on site to learn from anymore, I’m always learning something new from your videos, thank you, they’re so valuable to me and my work
Glad to help
Bloody hell, being carpenter 30 years plus and never thought of that, feel a bit daft now, did my extension flat roof last year and this would have saved time materials and money duh, keep informing us, cheers
Love it!
Another genius tip from you Robin. Thanks for sharing. I'm really interested in how you complete the roof covering and also the weatherproof transition between the existing wall and the new roof. Hope you film some of that.
The simplicity of your tips and tricks is awesome.
Thanks for sharing your knowledge.
So clever!
Great tip Robin. Super work as always!
Learnt something as always!! Thanks!
Another cracking vid Gromit
One word. Genius!
Now thats, clever, great tip.
Love your videos Robin - keep them coming………
Simple but brilliant.
Always wondered how those were done. Great tip. Thank you
Nice one Robin!
Now that's a good one Robin, brilliant, thanks for sharing
Hi Robin, love your tips of the trade, great learning from you. Thanks
Cool tip Robin. Keep up the great work 👍
Loving the fact you're using Hilti tools ❤
Very good…. I like that
That's brilliant, I wouldn't have thought of that, thanks for sharing your knowledge.
Clever. Thanks for that 👍
No problem 👍
I'm impressed with the cut from that Hilti circular saw Robin it never missed a beat!
Very handy to know 👍👍👍👍
Awesome and insightful as usual. Thank you
Glad you enjoyed it!
Jimmy Genius at work. 😁
Brave man cutting that without a table saw 😯
We used to cut one and then use it as the angle on the table saw with a fence to repeat the cut
Never thought of your way though, pretty smart not having to find a longer bit of timber too that could be as wavy as the sea
That’s I thought table saw more accurate
At 2m long, if you've got a tracksaw, you can just use it l - lay the track down the line clamp the timber to another piece to support the track either end. Dead straight.
nice one... never actually thought of it that way before.
last flat roof i worked on of a decent size was in a ship yard near newcastle. it was maybe 6 meters wide by atleast 150 meters long. absolutely rotten. had to slowly move along and do the whole job in small sections. we were on it for weeks and weeks. there was grass growing in the rooms beneath it. excellent video as id never thought of how to make these before. we had to order the firings for that job from a timber yard and loads of them were no good as they had made them wrong.
Good Video!
Love the LH blade saws. Fills your pockets full of dust
Absolutely class mate, saves using a whole 4.8M with a bow in it and pinging a line 👍👍
Very smart 🤓
Love these tips. Nice one robin.
Glad you like them!
You’re a top carpenter . My teacher from Donegal would be impressed by your carpentry ability. He was master carpenter here in Ireland he teach in schools etc🇮🇪.
Really appreciate this video, this is defo a better way then me doing them on the table saw👍thanks Robbin
Glad to help
Very helpful. I’m doing a triangular shed / low end garden room. If I picked the high wall, made firring boards as if it was a rectangular shape, and then cut the firring strips on the hypotenuse, I think I’m right that the fall is uniform and the roof sheets sit flat? It’s a bit of a mind bender for me but I think that is right.
nice!!
You make it look so simple Robin (which I love) but your skill cutting that 2m so perfectly freehand is impressive for a wood butcher like myself!
Great tip mate 👍
Glad you enjoyed it
Craftsmanship. Simple and just a superb idea.
Thank you! Cheers!
Did this once myself with a jig. Admire you doing it freehand and no clamps.
1 handed free cutting......that's a baller move right there ;-)
All the reviews on the heavyweight battery guns and still those lightweight paslodes are used. great vids Robin keep up the good work
nice .. thanks .. make my life easier 😊
Happy to help
Morning Robin do you prefer the hilti to Milwaukee cordless saws 🤔
Nice. I do like the saws. Do you have different blades in them for cross cut and ripping?
Those Hilti saws look nice, although I don’t think as fast as the Hikoki 36v you used to use?
Superb work as always 👏 Right or wrong I doubled up the wall plate on one side so the joists were 1:40, when I needed a workshop quick.
Brilliant demonstration I have to build something similar, what size nail did you shoot in?
The 🐐 🪚
Hi Robin need advice on french drains ,have to dry out a clay garden that is constantly in water and starting to affect brickwork on house do I put in several and how to join IE do I use t pieces then feed into solid 150 mm pipe to drain ect cheers
you're superstar carpenter, I wish I became a carpenter instead of a welder
The grass is always greener and all that :P
After I rip all mine I put them all together on a flat surface and knock them level then cut the thick ends flush. It's surprising how much difference you get.
Yo chief I know you're hot on the old hearing protection ( as we all should be ) so have a look at the iso tunes pro aware range. It's not cheap but really clever stuff and it works really well.
How are those new paslodes? Worth the money vs standard one?
Hey Robin, where do you stand on 15 vs 16g nailers? I've got a 18g and framer, but wondering what to buy next.
your some boi robin lad
Genius. Thank you so much for sharing your tips.
I am thinking of extending rear of my garage attached to my house and fall of the roof was something that was troubling me. So simple when you are shown by an expert.
Would you be able to say what the building regs are for requirements of falls for flat roofs eg over spans of 2m, 3m, 4m, etc?
Many thanks.
ATB.
1 degree pitch is all that I was required by my architect and BC
Great advice there Robin. I always cut my own firrings like that as its good to be able tolay the decking on a nice flat plane. Whenever i got firrings cut at a timber merchant they were usually all different angles never even two the same, i guess the lads cutting them dont realise the importance of accuracy as they dont fit them
Very True, most firings that you buy from merchants are pants
Wish I'd known about this quick fix before I built my garden room. outstanding Robin.
Hi mate
Genuinely interested, how will the box gutter work when it’s 10mm at the end of firing. Was this just a sample of a firring.
Otherwise you would have allowed for the extra buildup up for the box gutter fall also.
Guys who want to use table saw use table saw at the time you load and unload it he is done and you wouldn't even start yet. Take the information what he give until he is willing to do it. I believe he is one of the best carpenters.He is doing all framing and finishes as well. Many carpenters don't even know how to hang a door. The second master carpenter is Larry Haun who was willing to share the knowledge and left his experience for next generation.
Thank you Marek!!!!!
Do you do the same with every single joist?
True confessions. Has to watch it twice to catch on to the fact that the width of the board was the high point in the fall (less 10 mm). Thanks for the tip. There’s a video called something like “making super shims” that shows the use of a table saw.
Hi. How would you make one for a 9 meter run? I have a garage roof that is quite long but flat.
That Hilti handled that rip well. What blade are you running in that?
This is the standard issue blade that comes with the saw
meter system in Uk, i love it as a non imperial user:D
Robin you are a superior tradesman and someone who’s videos I admire, however for the 1st time ever I’m not sure I’d be buying 4.2m firrings and shooting them straight in whipping the 200mm off, surely by the time you’ve calculated labour cost of ripping and the materials as a pose too just buying them and shooting them straight on in this scenario is beneficial.? But that’s the beauty of trades we all have our own opinions and interpretations and I’ve stolen lots of yours 👍🏻
👍.
How would you make it flow into one corner rather than just all fall forward. As in if you want the water falling all to the forward right side of the roof?
Great advice, now let’s see diminishing firings lol
Hi robin , would you do firing every joist or every other joist ?
Every joist
How do you know what pitch it is and whether the fall complies with the minimum pitch of the roofing you’re using?
From experience in my case. The minimum is 1 in 80, I prefer about 1 in 50 which is what my ones in this video are
Once you've done your first freehand firing.....
Fix that to your bench and a 4x2 next to it.
Now use your rip fence against the firing you've just cut and hey presto you cut 2 firings in one pass.
Similar to what you're doing but the rip fence is better at repeat cuts than freehand.
Once you're set up.. No measuring or following a line.
I have always cut firrings with a table saw or bandsaw. after marking and the first one I use half butted up against the next piece of timber and using a fence slide through together. This method is certainly a good alternative.But the thing I like best about this video is the fact that he is not wearing hi-vis nor a hard hat and he is just striding about on the joists. It's the way we all used to work and never had a problem. It's only the pen pushers that are too scared to do a proper days graft that have somehow thought we all need to wrapped in cotton wool to do jobs we have been doing for years without a problem. Yes ear defenders are a good idea.
Hey Robin did you counter baton as well for cross air flow ?
This is a warm roof so we do not need to ventilate the roof space
@@ukconstruction ahh I see
I had a leak on my flat roof that was intermittent, I had several builders look at it and all wanted to tear it off and re-do it FLAT !!...fine and all, but I hadn't got the money..
My theory was that the asphalt felt was weeping at the overlap somewhere, but healing in summer heat... soo... after watching Roger use that Liquid Roof, I decided to try it first and if I still get the leak I'll be doing what Robin is showing here... personally, I think flat roofs should be bloody-well banned !! 🙄😂
The liquid roof is workin so far.. 😣🤞
What are the new Hilti tools like ☘️🇮🇪👍
Different level!!!!
What if your timber is bent?
No glue ?
Knowing the trades I hire, id rather get them ready made.
Just curious and I know there’s going to be a good answer but why would you not just raise the beams at the house end to create the fall?
We would then have an out of level ceiling
Heaps easier to install the rafters on a rake and to fur out the ceiling perpendicular to the rafters which also provides a service cavity
I understand 'install the rafters on a rake' but you lost me on 'fur out the ceiling perpendicular' ... can you explain thx
@@garyharrisonuk batten out the underside of the rafters (ceiling) and run the batterns the opposite way (perpendicular) to the rafters. Pack batterns as required to accommodate for the rake of the rafters so the ceiling is flat
@@mrsbradpittiful I see. I was thinking you meant somehow using firing strips below the joists to level the ceiling. I like your method but individually packing/levelling each batten sounds time consuming? Thanks
@@garyharrisonuk takes stuff all. Set up a laser and off you go. And it’s a great chance to level the ceiling and take out and discrepancies that the dresses rafters have: eg different timber sizes or crowning.
Each to their own.
Cheers
@@mrsbradpittifulus aussies would’ve done the rafter at a pitch and do a suspended ceiling below similar to what your saying. Shouldn’t touch the roof members more than once.
The other thing he could’ve done was start with a 35mm batten laid perpendicular at the gutter line and use whatever sized member at the wall and string a line and use packers as battens for the metal roof. Old mate has been making videos that are useless lately. Running out of work maybe.
That’s genius mate! I’ve never thought to do that!
Did you come up with the idea yourself? Honest injun! Santa is listening! 👂 🧑🎄 😂
I can't cut a straight line with a guide and you do it free hand. No wonder I get depressed trying to make things.
Camera operator risking it all to film you while going down a ladder!
Didn’t see any hikoki robin 😢
I can make a flat roof fall. Easy. Just cut away all the supports and it comes down right easy
I’d use a 4m length then you get 2 pieces every cut
Yes we sometimes do this but many long timbers are not straight so when you are marking the firring from end to end with say a chalk line as there are not many 4m straight edges around, you have to hold the long timber dead straight. Making a single firring from a short timber is much more accurate and easier to handle on your own
Heads up Robin, flat roof design fall should be 1:40 to allow for 1:80 fall allowing for deflection.
Off the shelf firrings I've measured on site have sometimes been as shallow as 1:120.
Building Regs in England says a minimum of 1 in 80, these ones I cut where about 1 in 50 and I like that for a flat roof
Sorry I’m not a chippie but could you not just make the beam attached to the wall abit higher so you got a fall to save using more wood
Yes, but the ceiling would be out of level
@@ukconstruction oh yeah wicked thank you
Another thing about buying firings is they are up nd down all over the place. Awful standard to them
And making your own firrings is probably half the price you pay for ready cut firring length..
for a moment I read that as "How to fall off a flat roof"
Blimey!! glad I stayed upright!!!
Dummy
Cut one then use it as a guide against your circular saw quide so much faster and more consistent this was is good but long winded and not consistent