Rear roof construction Part 1

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Rear roof construction Part 1

Рет қаралды 25,101

Күн бұрын

Here is the kit I use:
Bosch Professional Combi Drill and Impact Driver with Two 18V 4.0 Ah Batteries amzn.to/2owE0mK
Bosch Professional 18V Cordless Circular Saw with 2 x 18 V 5.0 Ah Batteries
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Bosch Professional 18V Cordless Multi-Cutter with 2 x 18 V 5 Ah Batteries and 16 Accessories
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Bosch Professional 18V Cordless Jigsaw with 2 x 18 V 5.0 Ah Batteries
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Bosch Professional GAS 35 M AFC Wet/Dry Extractor
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Bosch Professional GMF 1600 CE Corded 240V Multi-Function Router
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Occidental Leather 5089 LG Seven Bag Framer Tool Belt
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Occidental Leather 5355 Stronghold Comfort Package
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Hikoki Nail Gun
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Bosch Table Saw & leg stand
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Damp Proof Membrane
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18mm Chipboard Flooring
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Пікірлер: 62

@MrAidanfleming 3 жыл бұрын

The velux openings, the top and bottom trimmers should be doubled also! Plus on hangers

@CarFinanceSimplified 3 жыл бұрын

Good old Robin Clevitt getting a mention! Lovely job :)

@coops6621 3 жыл бұрын

Fairplay doing this yourself and recording it. Ideally with no ceiling tie to stop any spread at the eaves, the rafters want to be birdsmouthed and sit on the top of the ridge beam with a collar just below ridge to tie opposite rafters together. This set up is relying on a few skewed nails. Check your drawing, SE should have mentioned it. BC may pull you up on it although there more likely to spot a missing trickle vent!

@OfficeBoyBuilder 3 жыл бұрын

Lol yes I've seen those types before, spotting when one nail is missing from around a hanger, but overlooking something else entirely! That's a great suggestion and technique. I stuck rigidly to what me SE had specified. I certainly don't propose to be a roofer, so I basically just did as I was told so that I was "within the rules" so to speak. I did question about the strength without ties/collars to stop spreading, and they were quite confident in the ridge beam bearing the load with the timber locks.

@coops6621 3 жыл бұрын

@@OfficeBoyBuilder keep up the good work, great work ethic.

@chrisrushen5865 2 жыл бұрын

Structural ridge, no ties......Always birdsmouth and collar... low pitch, snow load, I wouldn't want to be under it..

@barringtonsmythe3464 3 жыл бұрын

That roof is great. Full credit.

@RobNorman08 3 жыл бұрын

You don't need to have a chop saw that will adjust to half degree increments, just mark your plumb and seat cuts and use a skill saw, its rare to even bother getting a chop saw out when framing a roof.

@OfficeBoyBuilder 3 жыл бұрын

That probably just shows up my lack of experience to be fair - I was a bit nervous about using the skill saw for something so specific and wanted consistency across them all. I see (and aspire to) the Robin Clevett's of this world!

@py_tok5589 3 жыл бұрын

very instructive video Office Boy, I will share your channel with other mates who live in London

@thechrissyb 3 жыл бұрын

Quite often if this is low pitch is vaulted inside we would have to put hangers on the ridge to prevent any drop / spread. But that normally detailed but arcnitect or structural engineer

@OfficeBoyBuilder 3 жыл бұрын

It's interesting, but the SE hasn't spec'd any hangers or ties on either of the roof structures. I have done whatever he requested so that it definitely gets signed off, but a few people have asked about that detail.

@thechrissyb 3 жыл бұрын

Yeah. It confuses us when one job is belt and braces and the next job is more built like you know it'll stand up so it's fine.

@normanboyes4983 3 жыл бұрын

You did a grand job with the roof timbers but you may have saved yourself some angst with a homemade jig and using that to run a skillsaw against rather than trying to achieve on the chop saw which just adds to the jumping of heavy timbers.👍

@OfficeBoyBuilder 3 жыл бұрын

I did consider it, but I was a little concerned about making a jig that wasn't 100% accurate and then introducing some deviation to the cuts that way...if I was doing this for a job then you're 100% right, but as profit wasn't a concern I was able to take a lot longer over it and check/measure each one individually 🙈

@ratchriat1716 3 жыл бұрын

very good progress

@altiger419 3 жыл бұрын

Good job

@adrianwilding2912 3 жыл бұрын

Excellent explanation of your planning and method. There's always going to be an element of trial and error with such a large project and loads of 'adjusting to site conditions'. Surprised to see you using a chop saw to make the plumb cuts; those timbers are mighty heavy and very difficult to accurately position on any machine bed. Suspect it's probably due to their thickness where a portable hand held blade may not go through in one pass? Robin has also demonstrated the use of angled cutting jigs for cordless saws that overcome this issue and can be utilised from each joist face. I've been using similar today and they do work well. Interested to know if your engineer specified any metal connectors at ridge and plate? Enjoying the series and looking forward to fitting the Integras, - more weight to hoist up there!😂😂👍

@OfficeBoyBuilder 3 жыл бұрын

The Integra's were beastly! I didn't feel it was especially necessary to set up a jig, given it's a one off project. If I was doing it for a job I would certainly go to that effort I think. I also needed to adjust each one slightly anyway. No specification was given for metal fixings in the roof ridge, I stuck a load of timber locks in there for good measure though 🤣

@TheToolnut 3 жыл бұрын

A circ saw with a three inch plus depth of cut would be my weapon of choice for cutting those 9"×3"'.

@eversleyowl 3 жыл бұрын

Very nice job and looking forward to seeing how you are achieving 0.11 U value. Must be a sign of the times, but first thing I thought when there were 5 guys swinging that flitch around wasn't "...that looks heavy..." it was "...2m, 2m nobody is 2m apart..." 😂

@OfficeBoyBuilder 3 жыл бұрын

Hahaha shhhh... we're "at work" 🤣 bloody covid!

@karleck1119 2 жыл бұрын

Did you add waterproof material to the build up blocks like you did on the ridge beam entering house? Love all the video build like nothing else I've seen on youtube.

@OfficeBoyBuilder 2 жыл бұрын

Thanks for the lovely comment! Yes I did, I waterproofed as much as I could, same as the timber ends that were going to sit inside the building 💪👍

@karleck1119 2 жыл бұрын

@@OfficeBoyBuilder thanks you do some great work love the channel

@py_tok5589 3 жыл бұрын

we are working on a slightly similar project in Manchester, pitch roof conversion to flat roof

@asif530 3 жыл бұрын

Surely the plan would have told you the ridge height In order to get the pitch of 15deg min. Excellent work nice to see you detailing everything

@OfficeBoyBuilder 3 жыл бұрын

It oddly doesn't show any details like that, heights of outside walls, heights of eaves/ridges etc. Because architects don't often like having people scale off their drawings, they just didn't give those measurements, and put a disclaimer saying all measurements needed to be taken and checked on site...I knew what it was roughly, but on-site is often different from the theory.

@eversleyowl 3 жыл бұрын

@@OfficeBoyBuilder These days I tend to do my own planning drawings for developments in SketchUp, but it doesn't matter how acurate your measurements and modelling it isn't the real world and nothing will ever end up like the model to the millimetre. I don't believe that will be any more the case with an architects plans that you pay for. Local to me planning enforcement clearly understand that and won't even consider coming out to look at anything unless it is more than 300mm out versus what was approved.

@peterpeterson9903 3 жыл бұрын

Often not due to the following two words all over plans for this sort of thing: "Site measure" reason being, the ground levels may change and if things are set on the plans, and it transpires levels have changed then you build it slightly different, technically you have not built to plans, often as few dimensions as possible are put on plans over and above the general sizing of the actual build obviously.

@asif530 3 жыл бұрын

@@eversleyowl good idea on using sketchup it makes sense doing it yourself.

@asif530 3 жыл бұрын

@@peterpeterson9903 points well made. Thanks

@Jackzuk Жыл бұрын

Loving the videos fella, did u have any books or websites ud recommend to learn all about this stuff

@OfficeBoyBuilder Жыл бұрын

I've done a bit of all of it really...lots of KZfaq, Housebuilders Bible, DIY Guides, lots of timber working books. I've often tried to find the resources I need, based on the task I'm looking to do/coming up.

@Jackzuk Жыл бұрын

@@OfficeBoyBuilder cheers for the reply. Was there any particular reason you went with timber rather than brick, i mean the speed in which you knocked it up makes it really compelling, I’ve got plans submitted and waiting for response at the moment and neither my architects nor I had even considered it as an option. Having said that i have an art deco house so the plans involve a flat roof with parapet walls so don’t know of that makes a difference.

@OfficeBoyBuilder Жыл бұрын

It was about speed and cost - I cannot do brick work, but can work with timber. So speed was nice and quick, and I would save a ton on labour. I also love working with wood, so it was about enjoyment too! Best of luck 🎉💪

@mikeadamson6696 3 жыл бұрын

Maybe I missed an earlier presentation on the reason for a timer construction , if not here goes . What was the reason to go for the timber option , cost or otherwise , is fire risk a consideration and is this kind of installation a poular option with the local authorities ?

@peterpeterson9903 3 жыл бұрын

How would you build it? This is a domestic extension, not a multi-storey office building. This is a wood build all day long. Steel has it's places but has many drawbacks in reality.

@OfficeBoyBuilder 3 жыл бұрын

There's also an element of playing to my strengths (and passion). I don't know anything about brick and blockwork, as you'll see in a previous video lol! I understand timber and really enjoy working with it. Incidentally it's also far more thermally efficient than blockwork, and it builds a bit faster too. I think it's cheaper, not least because of the amount of time it takes and the number of people needed to build in brick. With timber you build it once and in fill with insulation, and the walls go up in minutes. With brick you need to build each wall twice and infill with insulation as you go, and it's typically a thinner amount of mineral wool insulation which is less efficient than rigid PIR. The raw materials cost around the same, but timber is possibly marginally cheaper if you get trade rates.

@mikeadamson6696 3 жыл бұрын

@@OfficeBoyBuilder My question was not meant to be critical of your work or approach , its just that I was interested on why you chose this path as its obviously in keeping with environmental trends . My house is a brick build and gets very hot in the summer and needs AC / ventilation to keep it comfortable , so there is a energy cost during the summer and winter so you have indicated your new build is thermally efficient which reduces the cost

@OfficeBoyBuilder 3 жыл бұрын

Absolutely no criticism detected in your question mate. I get plenty of commenters stating what I "should" have done rather than suggesting what I "could" have done, and I'm getting good at spotting genuine curiosity. Thanks for asking and supporting the channel!

@thechrissyb 3 жыл бұрын

Fakro do a 10 degree pitch kit for roof windows. But they look a bit wank as you ha e to bend the battens over them.

@MrB3ngy 3 жыл бұрын

Looks a long span at such a shallow pitch. Was this calculated by the structural engineer? Will you be adding purlins or collars to help with load of tiles and weight of velux’s

@OfficeBoyBuilder 3 жыл бұрын

Everything was calculated by the SE, the beam sizes, construction methods, design etc. So I just did as I was told lol!

@MrB3ngy 3 жыл бұрын

👍 may want to add some m12 bolts to your flitch beam @600mm staggered centred with bolts and washers. And will more than likely need joist hangers at flitch end of rafters. Might be picked up by building control and will be a nightmare to do once felted in 👍 keep up the good work. 👍

@osmanamjid2432 3 жыл бұрын

How much did this project cost? Absolutely fakin amazing!!! Well done!!!

@OfficeBoyBuilder 3 жыл бұрын

Thanks mate, appreciate the support. Haven't landed at a final budget yet, as we're still building, but I suspect we'll end up around the £130K mark.

@py_tok5589 3 жыл бұрын

I have question regarding the ridge beam at : 15:45 to 16:05 . the ridge beam appears to b a flitch beam or you just sandwiched it a flitch plate to sandwich both timber ridge beams ?so you can join the rafters

@OfficeBoyBuilder 3 жыл бұрын

It is indeed a flitch beam!

@py_tok5589 3 жыл бұрын

@@OfficeBoyBuilder spot on

@darrenharlow3016 3 жыл бұрын

Will you be changing the bedroom window has it looks like it will interfere with your flashing on the lead work

@OfficeBoyBuilder 3 жыл бұрын

We trimmed back the cill a fraction, and then used the lead (and lead sealant) to close it all up. Not an especially attractive finish, but you cannot see it from anywhere because of the projection of the roof, and we've had about 30cm of rain since then and not a single drop of water inside (thankfully!)

@GIOGS 3 жыл бұрын

Sounds like you watched that recent episode of Grand Designs and didn’t want the same fuck up of velux windows on too shallow of a roof!

@OfficeBoyBuilder 3 жыл бұрын

Exactly right mate - I said to my wife "I don't want to be the person who experiments with capillary action on roof tiles!" 🤣

@Donato77777 3 жыл бұрын

Why so many timber isn’t this frame can be done with construction steal ?

@peterpeterson9903 3 жыл бұрын

Wood is easier, cheaper, has better thermals, is sustainable and environmentally friendly.

@sevesham 3 жыл бұрын

Where are you building guys?

@OfficeBoyBuilder 3 жыл бұрын

South East London 👍👍

@jamiehalpin9921 3 жыл бұрын

You can't get tiles lower then 15degrees. Come on.

@OfficeBoyBuilder 3 жыл бұрын

www.buildingdesignindex.co.uk/entry/148189/Marley/Mendip-125-low-pitch-concrete-interlocking-roof-tile/

@95Ozz 3 жыл бұрын

Will you be using joist hangars?

@OfficeBoyBuilder 3 жыл бұрын

No, I used multiple timber locks at every joint, which are each rated to 1 tonne of load capacity - the building inspector was happy with that and it give a neater/quicker finish too.