Build Better Things
Build Better Things
  • 109
  • 1 169 969
Warm Roof Design - Calculate Fall, Firring Pieces or Tapered Insulation?
How to calculate Flat Roof Slope and What is a Flat Roof Fall? 3 ways to slope your flat roof, Firrings, Tapered or wall plates? For warm roof, Cold roof and SIPs roof.
How to calculate roof slope to allow for proper drainage? Maximum Flat Roof Fall of 1:40 or 1:80? Everything you need for Flat roof slope design you’ll find here. I’ll tell you your recommended minimum slope, and the difference between gradient, fall and slope.
Get my pricing templates and material calculators
buildbetterthings.com/resources/
Talk to me here….
buildbetterthings.com/one-to-one-consults/
Build a Warm Flat Roof the Right Way
ua-cam.com/video/xWRLCWmqT50/v-deo.html
Hybrid Roof - Build the Right Way- avoid overheating, avoid timber deck.
ua-cam.com/video/5Xiw04-7Jmg/v-deo.html
Insulation - Warm roof v cold roof v hybrid - and why should you care
ua-cam.com/video/_UGNgGcwhjs/v-deo.html
What's best SIPS v Timber Frame - You won’t like what I’m going to tell you
ua-cam.com/video/xW-ePTqDaAU/v-deo.html
Robin Clevett on UA-cam @ukconstruction for the video I referenced.
0:00 intro
0:28 Flat roof fall, Gradient and slope, 1:80 calculation
1:16 Flat Roof Ponding and how to avoid
1:28 Ideal fall for flat roof 1:60
1:52 Completely flat roof, 0 degrees pitch?
3:04 Insulation options for warm roof
3:19 Flat roof fall Calculator, worked example
3:37 Why bother with structural engineer
4:13 Flat Roof Option 1 - Wall Plates
6:02 Flat Roof Option 2 - Firring Pieces
8:02 SIPs roof panels and Firring Pieces
8:30 Flat Roof Option 3 - Tapered Insulation to create slope
Переглядів: 5 323

Відео

Hybrid Roof - Build the Right Way- avoid overheating, avoid timber deck.
Переглядів 17 тис.Місяць тому
How to avoid problems in flat roof and hybrid roof where you have a height restriction. Here’s a step by step illustrated guide show you the mistakes that Builders make with hybrid roofs, using an OSB deck and foil insulation, why they make them, how you can avoid your interior becoming too hot in the summer, and make your roof last for as long as you’re going to live in it. I’ll look at warm r...
Build a Warm Flat Roof the Right Way
Переглядів 174 тис.2 місяці тому
How to avoid common mistakes in flat roof construction, here's a step by step Timelapse guide show you the mistakes that Builders make, why they make them, how you can avoid these mistakes, and make your roof last for as long as you’re going to live in it. I’ll look at warm roof, cold roof, and that one that’s in between, with the insulation between the joists. Get my pricing templates and mate...
Concrete Slab v Timber Floor - Cost Compare & What’s Best..
Переглядів 16 тис.3 місяці тому
How to choose between a concrete ground floor and a timber frame suspended ground floor for your construction project. I’ll do a deep dive into the materials required, the insulation for both floor types, and…a detailed cost comparison to show which is the most expensive. I’ll include all materials and I’ll separate the Labour costs in case you don’t want to use tradesmen. For my free pricing t...
Lay Chipboard Particleboard the Easy way | Architect & Builder Tips
Переглядів 8 тис.5 місяців тому
Laying chipboard or particleboard as it’s sometimes known, tools you’ll need, things to avoid and preparation too focus on. Follow this and you will along squeaks and creaks, the curse of any new floor. Get my pricing templates and material calculators buildbetterthings.com/resources/ 0:00 Intro, Chipboard Particleboard tips and tricks 0:21 Choosing the right floor boards 1:06 Egger Protect flo...
How to choose PIR insulation : Size & Cut the fast way
Переглядів 6 тис.6 місяців тому
How to choose PIR insulation : Size & Cut the fast way
Timber Frame House Solo build - Tips and tricks
Переглядів 6 тис.6 місяців тому
Timber Frame House Solo build - Tips and tricks
9 Timber Frame and Joinery mistakes to avoid
Переглядів 6 тис.8 місяців тому
9 Timber Frame and Joinery mistakes to avoid
Brick and Block walls - 9 Mistakes in masonry to avoid
Переглядів 17 тис.8 місяців тому
Brick and Block walls - 9 Mistakes in masonry to avoid
Field drain for Retaining wall - installed the correct way - to last forever
Переглядів 9 тис.9 місяців тому
Field drain for Retaining wall - installed the correct way - to last forever
Structural Engineer for House Extension? | Fees, HOW MUCH ?
Переглядів 2,9 тис.9 місяців тому
Structural Engineer for House Extension? | Fees, HOW MUCH ?
Garden Retaining Wall - Foundations and No timber sleepers
Переглядів 3,1 тис.10 місяців тому
Garden Retaining Wall - Foundations and No timber sleepers
5 EXPERT TIPS for HOUSE EXTENSION construction, avoid damp and condensation problems later
Переглядів 3,5 тис.10 місяців тому
5 EXPERT TIPS for HOUSE EXTENSION construction, avoid damp and condensation problems later
Cement, Sand & Aggregate Concrete mix explained - DIY Spreadsheet
Переглядів 3,2 тис.11 місяців тому
Cement, Sand & Aggregate Concrete mix explained - DIY Spreadsheet
Hand mix Concrete - 4 step method easy
Переглядів 1,6 тис.11 місяців тому
Hand mix Concrete - 4 step method easy
House Extension Step by Step | You must do this!
Переглядів 4,5 тис.Рік тому
House Extension Step by Step | You must do this!
Garden DECKING - Composite or Timber? a DIY Self-Build Guide
Переглядів 1,2 тис.Рік тому
Garden DECKING - Composite or Timber? a DIY Self-Build Guide
Architect for House Extension - How much? - Go cheaper instead?
Переглядів 22 тис.Рік тому
Architect for House Extension - How much? - Go cheaper instead?
Prepare & paint Timber Front Door | Best Primer Undercoat & Finish
Переглядів 5 тис.Рік тому
Prepare & paint Timber Front Door | Best Primer Undercoat & Finish
How I built this stunning front door | No woodworking skills
Переглядів 3,1 тис.Рік тому
How I built this stunning front door | No woodworking skills
Best Saw for Timber Frame - Circular Saw or Chop saw…? Architect-Builder Tool Tips
Переглядів 1,9 тис.Рік тому
Best Saw for Timber Frame - Circular Saw or Chop saw…? Architect-Builder Tool Tips
Timber frame for Self Builders - start with Floor Joists
Переглядів 6 тис.Рік тому
Timber frame for Self Builders - start with Floor Joists
What's best SIPS v Timber Frame - You won’t like what I’m going to tell you
Переглядів 39 тис.Рік тому
What's best SIPS v Timber Frame - You won’t like what I’m going to tell you
Which BUILD CONTRACT for Home Extension to use, AND..should I pay a DEPOSIT?
Переглядів 1,4 тис.Рік тому
Which BUILD CONTRACT for Home Extension to use, AND..should I pay a DEPOSIT?
QUICK and EASY method to cost Home Builds - Architect shows you how
Переглядів 1,5 тис.Рік тому
QUICK and EASY method to cost Home Builds - Architect shows you how
TIMBER FRAME v BRICK BLOCK Masonry- House Extension walls - Architect Builder’s 5 expert tips
Переглядів 34 тис.Рік тому
TIMBER FRAME v BRICK BLOCK Masonry- House Extension walls - Architect Builder’s 5 expert tips
Plastering an attic conversion - hacks, tools and tips - get this right and it’s easy
Переглядів 1,7 тис.Рік тому
Plastering an attic conversion - hacks, tools and tips - get this right and it’s easy
Bonding plaster will save you - here’s how - 5 examples for you!!
Переглядів 33 тис.Рік тому
Bonding plaster will save you - here’s how - 5 examples for you!!
How to PLASTER walls? My STEP BY STEP technique for success
Переглядів 3,2 тис.Рік тому
How to PLASTER walls? My STEP BY STEP technique for success
Vapour Barrier or vapour control - 2 ways to solve common problems
Переглядів 2,3 тис.Рік тому
Vapour Barrier or vapour control - 2 ways to solve common problems

КОМЕНТАРІ

  • @Onkarr
    @Onkarr 7 годин тому

    3:05 ❤ Glad I found a channel that appreciates the thermodynamics of a building

  • @Onkarr
    @Onkarr 7 годин тому

    5:21 ❤

    • @Onkarr
      @Onkarr 7 годин тому

      9:32 thermal bridging is under appreciated and is overlooked 👋🏼

  • @petel9242
    @petel9242 10 годин тому

    Really great video, thank you. Building in the UK seems so expensive. Did this £85k extension increase the value of your property by at least £85k? Just curious! Thanks

  • @dustyfruitypie1633
    @dustyfruitypie1633 День тому

    Thank you for the infor on studwork measurements but how do you work out sizes for timber lintels, which go over windows, doorways on the first floor.

    • @build-better-things
      @build-better-things 23 години тому

      Hi. You work them out the same way you work out your floor and wall sizes. You use the loadings and the spans and calculate from that.

  • @seetheworldfrommyharley
    @seetheworldfrommyharley День тому

    What about a galvelume metal roof?

  • @lindseycoombs1900
    @lindseycoombs1900 День тому

    Really useful content. Forgive a novice DIYers question - where in this method would you create the fall on the roof? We have a very leaky flat garage roof with no fall but sound joists, which we are hoping we can strip back to and install this system. We were initially going to install firrings and then OSB over the top, but i think a full warm roof will put us over the height restrictions.

    • @build-better-things
      @build-better-things День тому

      Hi. I made a video about this. Option 3 on the vid, starting with 30mm tapered tissue faced at the lowest point, with the remainder between the joists as I describe, might be an idea although you could also consider having a completely flat roof and I also talk about that. Remember I can’t see it so this is just an idea, not gospel.

  • @wokemyarse4133
    @wokemyarse4133 День тому

    Tell building control

  • @davedavids2231
    @davedavids2231 2 дні тому

    Advising on how something should be built without ever building anything. Your what we call a nightmare client

    • @build-better-things
      @build-better-things 2 дні тому

      You can see some of the things I’ve built if you look through my many videos. Calling people a “nightmare” without any focus on the rights or wrongs of what they’re saying, maybe that’s the real nightmare.

    • @davedavids2231
      @davedavids2231 День тому

      Your channels very informative, and keep up the good work.

  • @davedavids2231
    @davedavids2231 2 дні тому

    Advising a client to watch over a bricklayer every few hours and get them to take down work lol. Erm

    • @build-better-things
      @build-better-things День тому

      Apologies if it wasn’t clear for you. I am saying take it down if it’s defective, eg full of mortar deposits. Yes, every few hours.

  • @saheedpatel1
    @saheedpatel1 2 дні тому

    Wish I found this channel before I started my self build Beautifully explained Well done

  • @Skjaeg69
    @Skjaeg69 2 дні тому

    im from the nordics, Denmark specifically, when in most commercial settings, the roof is actually considered as the vapour barrier, with the inside ceiling being structural perforated steel, with the insulation laying on top and then more often than not, asfalt based roofing systems being burned straight onto the insulation. i have never seen a professional roofing company use any glue or peel and stick roofing product, its all old fashioned 2-3 layer asfalt based roofs. the walls are then mostly precast concrete, which go half to one meter further up than the roof itself, and the asfalt based products are bonded onto this rising bit of the wall, allowing the entire roof surface to act as the gutter and control the water, since water management has become a much bigger issue these years with heavier downpour

  • @roost6625
    @roost6625 2 дні тому

    THANK YOU ..HONEST TRUTHFULL CORRECT INFORMaTION .IV JUST fOUND YOUR CHANAL....do you have any information on building a full build ,how best to insulate a wooden garden room.?❤

  • @briannewton78
    @briannewton78 3 дні тому

    Can TR27 be used?

  • @COUNTTRUMPULA
    @COUNTTRUMPULA 3 дні тому

    Can you get SIPS panels made with real 3/4" plywood rather than OSB?

  • @Jim-s7l1s
    @Jim-s7l1s 3 дні тому

    Been doin many warm roofs over the years and thankful no problem. Torch on direct to torch insulation. Bulletproof system if done correctly of course

  • @ragnaryahuwah
    @ragnaryahuwah 4 дні тому

    Yeh. But to get the airing above the insulation to work with a draft, on a totally flat roof. You can use a little trick. Mount aircanals on top standing up. Because then you get a level difference on intake and outake, and it becomes a draft towards it. So you need to let air come between the compartments at the end to reach the canal. Depending on how many canals you need. Just a cut in the wood, but dont cut the beam. That is often the issiue with flat roofs. Not getting airflow going. King Ragnar YAHUWAH ❤

  • @mike_jay
    @mike_jay 4 дні тому

    Hi, did the cost breakdown for brick and block quote £10 for a plasterer, yet a few hundred for the timber frame plasterer ?

  • @realdigitalninja
    @realdigitalninja 5 днів тому

    Hi, great video. I am planning on (self) building a 4x5 m TF single story rear extension. Would you be kind enough to let me know if below would be enough to pass building reg reqs ? 1. Foundation = 500 mm x 150mm concrete footings + 1 concrete block wall to dpc 2. Base : 90mm concrete + 70mm pir insulation + 30mm screed 3. Walls : 5x2 treated timber + 100mm pir insulation + 11mm osb outside + 12mm plasterboard Cladding : cement board cladding on the front + box profile roofing sheets on the side Roof : 6x2 treated timber + 125mm pir insulation + 18mm osb + epdm rubber Do you think this will be enough to suffice BR requirements ? What’s the required U-value by BR in England :) thanks

    • @build-better-things
      @build-better-things 5 днів тому

      You’ll need to submit calculations for the foundations, which are site specific. Similarly your walls base and roof require structure although I’ve made videos about how to size these elements elsewhere. U values, you need to do a calculation for each element based on your choice of insulation. Download part L to give you the current values.

    • @realdigitalninja
      @realdigitalninja 5 днів тому

      @ thanks. Please can you clarify whats part L ?

    • @build-better-things
      @build-better-things 5 днів тому

      Part L of the building regulations.

  • @helmanfrow
    @helmanfrow 5 днів тому

    Don't they have ZIP System or something similar in the UK? Your vapor and water barrier are part of the roof sheathing. Insulation goes on top. Then furring strips to support your roof panels (or another layer of ZIP if you're laying shingles).

    • @build-better-things
      @build-better-things 5 днів тому

      Hi. The system you’re describing is a ventilated roof, not a warm roof. I’ve made an another video about that if you have a look.

    • @helmanfrow
      @helmanfrow 4 дні тому

      @@build-better-things No, I'm definitely describing a roof with exterior insulation. Steve Baczek, Matt Risinger, etc.

  • @TheSingingCelebrant
    @TheSingingCelebrant 5 днів тому

    Absolutely superb videos. Love your openness and honesty

  • @loveeveryone8057
    @loveeveryone8057 5 днів тому

    Excellent video....thank you. Question. I want to build a deck over a sun-room. Would the insulated panels be ok to install decking materials and support the weight of people using it for a patio deck?

    • @build-better-things
      @build-better-things 4 дні тому

      You need to use an inverted roof for that. Whether OSB or insulation substrate, the EPDM won’t take that traffic over time.

  • @davidprice9265
    @davidprice9265 5 днів тому

    What about the new multi foil details im seeing these days

  • @PazHussain
    @PazHussain 5 днів тому

    Loved tip number 6 It earned your a like

  • @alexburt-l8p
    @alexburt-l8p 6 днів тому

    You made some good points, but I have a couple for you . 1 what about walk on balcony roofs, straight insulation is not strong enough. 2. Your laying 150mm in 1.2m sq sheets, it would be better to use 2 layers of 75mm x 2.4x1.2m with an offset stagger, to eliminate direct bridging through every butt joint and bigger but still manageable sheets to cut cut down on overall joints. Your proposed way may meet code but you're ignoring that in the Timber statement, for a maximised performance?

    • @build-better-things
      @build-better-things 6 днів тому

      Hi. You wouldn’t use the warm roof makeup I describe for a balcony. You’d use an inverted roof. Insulation is perfectly strong enough to walk on, but I’m not understanding what your point is. Are you suggesting OSB on the cold side for a warm roof? …. Joints…. You would use rebated batts as I mentioned. Splitting into horizontal 2 layers introduces air and is sub optimal.

  • @Stealth_1972
    @Stealth_1972 6 днів тому

    Didn't know about the timber top deck. I love a resin roof bit my eldest says they are poop, his too so many rotten decks and boldness the resin system. He swears by three layers of torch on. Defo gonna send him this vid. And enquire about tissue backed pir. Don't think I've ever seen it in my local builders yards. 👍🏻

  • @nikkipoucher1450
    @nikkipoucher1450 7 днів тому

    Hi, my loft is quite large and the rafters have been insulated with rockwool from a previous owner and it is in good condition. The rafters are not very deep they measure 70mm. I’ve put my hand in behind the insulation and it touches the membrane, so no air gap. The property is a purpose built 1950’s maisonette and the membrane is a black bitumen type. As it would be quite expensive to pull all this insulation down and refit a more rigid PIR, should I leave it up and just increase the rafter depth by fixing a baton to the rafters and readjusting the rockwool forward allowing the necessary air gap between the membrane and the insulation? Many thanks for any advice from yourself or from any of your followers. Nikki

  • @kingsdigital8151
    @kingsdigital8151 7 днів тому

    Thanks for the video. I am thinking about a flat roof using tapered insulation. I will then put pedestals and a rail system on top to support paving slabs - what should I use to spread the load of the pedestals so it doesn't cause issues to the roof. Just to note, the finished roof will be a liquid rubber roof.

    • @build-better-things
      @build-better-things 7 днів тому

      Hi. For that, you really need to consider an inverted roof.

  • @RIAANMSO
    @RIAANMSO 8 днів тому

    For the warm roof design Over joist is 12mm ply good or osb ? Thanks

    • @build-better-things
      @build-better-things 8 днів тому

      18mm really, even for 400 centres.

    • @RIAANMSO
      @RIAANMSO 7 днів тому

      @ Thanks and is ply better?

    • @build-better-things
      @build-better-things 7 днів тому

      @RIAANMSO I prefer OSB because you can get it in smaller sheet sizes and with t and g joints so I don’t need to worry about dwangs/ noggins

  • @tallrobw
    @tallrobw 8 днів тому

    I'm a little confused: In the case of a warm deck, the vapour barrier prevents moisture in the warm air in the living space from getting to the insulation and beyond, so where does the moisture that's going to rot the underside of the top layer of OSB come from?

    • @build-better-things
      @build-better-things 8 днів тому

      Hi. It comes from residual vapour, leaked vapour, the fact that there’s gaps and joints and penetrations which means more vapour still, the fact that there’s not a vacuum on the roof side of the vapour barrier (vapour retarder is a better description ) and, in the case of those using foils in their insulation in a warm roof, from thermally contrasting elements such as metals v inert materials. Put all of that together over a period of years and you have the compounding effect of rot on the top layer of OSB which in turn affects your adhesion . If I was putting the question back to you, it would be, why do you want a top layer of OSB when you can do it more economically without, even if you don’t accept my analysis of rot?

  • @janoginski5557
    @janoginski5557 8 днів тому

    This could be perceived as being over the top but we used to triangulate the corners, this does increase the structural strength significantly. Our Architect had never witnessed this technique before. It could be argued that it is unnecessary but I would argue the case for it, it requires a very small amount of work & material.

    • @build-better-things
      @build-better-things 7 днів тому

      I agree. Good practice. Thanks for the comment

    • @janoginski5557
      @janoginski5557 7 днів тому

      No worries, it's refreshing to listen to some informed advice, unfortunately far too many in the Trade are under informed & unwilling to have their misplaced preconceptions called into question or scrutinized. We never stop learning. All the best.

  • @4321nugget
    @4321nugget 8 днів тому

    Isn't the vapor and moisture not going to just make its way to the top of the roof joists and then condense on the vapour barrier and cause them to rot? the same way the OSD deck on the first one would have rotted?

    • @build-better-things
      @build-better-things 8 днів тому

      Hi. The vapour won’t condense on the vapour barrier since it’s not at a low enough temperature. That’s the purpose of the top layer of insulation on top of the vapour barrier over the joists. I said in the video, this is not the perfect solution, it’s just an improvement on having insulation only between the joists because of height restrictions.

  • @alanryan982
    @alanryan982 8 днів тому

    Great video and explanation. Instead of OSB on top can we use a cement board or "tile baker board" for smoother finish? I believe this will not rot with moisture

    • @build-better-things
      @build-better-things 7 днів тому

      Thanks a lot for the kind words. Any inert material will be better than OSB but I would still be worried about moisture getting trapped beneath or within the board rather than being able to slowly breathe out where no board. I’m not understanding the attraction for the top layer when you can save a load of time and bond direct.

  • @ruffastoast8570
    @ruffastoast8570 9 днів тому

    I think they nailed my chip boards in, i think that's why they creek and squeak. I'm going to loft the carpet later. If they are, would replacing nails with screws be a good idea?

    • @build-better-things
      @build-better-things 9 днів тому

      Yes. I might screw in new places and put foam glue in the holes where the nails were, if you can pull out the nails

    • @ruffastoast8570
      @ruffastoast8570 8 днів тому

      @build-better-things thanks, I'll try it

  • @gleneverett9728
    @gleneverett9728 9 днів тому

    Outstanding

  • @gleneverett9728
    @gleneverett9728 9 днів тому

    Outstanding

  • @AgronIlirBilla
    @AgronIlirBilla 9 днів тому

    Thanks for the amazing information. I have done a flat roof with “Alutrix VCL and 150mm ecotherm on top , and I was planning to install the OSB on top. Now that I saw your video, I am thinking to not put the OSB but I don’t want to throw the ecotherm that I installed. Can I put a 25mm tissued insulation mechanically fixed on top and then membrane?? Thank you in advance.

  • @RIAANMSO
    @RIAANMSO 10 днів тому

    What is better partial filled cavity insulation or fully filled cavity insulation, thanks

    • @build-better-things
      @build-better-things 10 днів тому

      Partially filled, in other words, cavity insulation with a minimum 50mm ventilated cavity to the cold side.

    • @RIAANMSO
      @RIAANMSO 10 днів тому

      @ Thanks

  • @RIAANMSO
    @RIAANMSO 10 днів тому

    Hi Jerry, for brick and block cavity insulation structure do we need any vapour for the wall, if yes where. Similarly for a concrete floor do we need WB and where to put it? Thanks

    • @build-better-things
      @build-better-things 10 днів тому

      If you’re using something like Kooltherm, and full coat plaster, manufacturer instructions say the pir will perform without one. When you see that all the materials are inert, and the position of the calculated dew point you can see why. However it’s another reason why I don’t like masonry inner leafs.

  • @coolmonkey619
    @coolmonkey619 10 днів тому

    what are you qualifications and how did you get where you are, would be an interesting video

  • @coolmonkey619
    @coolmonkey619 10 днів тому

    what is the software at 1:45

  • @LaurieA-xu3dc
    @LaurieA-xu3dc 11 днів тому

    Thanks for the helpful video. Could please explain what you mean by "strategic points" in relation to where you placed the vents - how do you determine where these are? Also, what type of vents would you recommend? Are Lap vents suitable?

    • @build-better-things
      @build-better-things 11 днів тому

      Good question. You do it by finding it the required mm of ventilation from the current regs. As a rough example, I’ll go for every second rafter at eaves and every third or fourth rafter at ridge so you create the uneven air flow to create negative pressure to suck it through. This is a common shortcut by roofers where they just put a few in, as they’re a pain to fit in an existing old roof. Roof vents will kill condensation if done right. Don’t scrimp it. 🙂

    • @LaurieA-xu3dc
      @LaurieA-xu3dc 10 днів тому

      @build-better-things great, thank you very much 👍

  • @BadHorsie1
    @BadHorsie1 11 днів тому

    Doesn't permitted development allow 3m roof height at the eaves? Where is the 2.5m coming from?

    • @build-better-things
      @build-better-things 11 днів тому

      From regulation relating to proximity to boundary. Most people don’t have massive gardens.

    • @BadHorsie1
      @BadHorsie1 11 днів тому

      @build-better-things thanks Jerry but the regulations I've seen on the scotgov website relating to permitted development and planning permission don't mention anything about 2.5m and boundary proximity. Do you have a reference to an official doc? Sorry, not saying you're wrong just like to see these things for myself.

    • @build-better-things
      @build-better-things 11 днів тому

      @BadHorsie1 yes that’s for Scotland, which I mentioned in the video is different, with the illustration. The majority of people are working off a different set of regulations for the rest of UK.

    • @build-better-things
      @build-better-things 11 днів тому

      Also, don’t forget to take account of your levels. They’re quite strict about the interpretation if you have a slope (Scotland I mean).

  • @georgeliquor2931
    @georgeliquor2931 11 днів тому

    We use this method well almost, our way is upside down to yours, 120mm pir between the joists flush with the bottom of the joists then over boarded with 8ftx4ft 30mm pir then plaster board over that, the air gap between the under side of the deck and the top of the pir is fully ventilated through soffit vents and if necessary mushroom vents depending which way the joist run, and after 13 years no problems so far, touch wood. Great info though, thank you

  • @fr0styballz
    @fr0styballz 12 днів тому

    This is the best video on subfloor I've seen. I'm about to replace a tongue and groove water stained and mouldy floor in my holiday shack. Thankyou for the info! Also need to reset some footing levels while I'm at it so that'll add some complexity.

  • @BillySnowball
    @BillySnowball 12 днів тому

    That splice beam detail is essentially a mechanism, two mechanisms actually and should not have been agreed.... Also I need to increase my fees, by 100% seemingly

  • @BillySnowball
    @BillySnowball 12 днів тому

    Having read the strong boys loading data and being a structural engineer, I concur.... they are pretty rubbish

  • @KJSvitko
    @KJSvitko 12 днів тому

    Water is the enemy of buildings.

  • @ShafaqIftikhar-pw9ld
    @ShafaqIftikhar-pw9ld 12 днів тому

    Instant subscribe❤❤❤❤❤ Excellent content

  • @luckystrike656
    @luckystrike656 12 днів тому

    How do the roof vents work if outside air has moisture?

  • @Stewart_Bell
    @Stewart_Bell 12 днів тому

    Great content on this channel thank you 👍👍