- 75mm insulation board screwfix Provides a radiant barrier, all-in-one breathable membrane with insulation and water resistance. This ensures you find the right one for your building needs. Does the insulation need to fully fill the We have attached 75mm Recticel PIR insulation boards to the walls using mechanical fixings, to make it strong and robust. 30 day money back guarantee. . 3-in-1 solution providing insulation, a radiant barrier and a vapour control layer. Cavity boards with taped joints Screwfix Community Forum. If I was in your position, I’d probably leave the floor as it is and just upgrade the walls and roof If it were mine, I'd max out on insulation you can never have too much. walls tyvek house wrap all around on the inside then roof battens on that for studs then infill with 25mm celotex or equivalent then vapour barrier. The room is very cold during the winter and I think its cos the walls should be at least 75mm with insulation ceiling 100mm. Even use 2 x 2 and put 75mm insulation in. Stud wall insulation Unless your studs are only 75mm thick? S. hallbeck Guest. This then had 8x2’ TG chipboard layed on top with a few long screws going into the joists. Thread starter StuKing However most of the insulation I'm looking to buy (celotex or rockwool) comes in 25mm increments (25mm / 50mm / 75mm 100mm). Question is should I just fit 75mm PIR and tape between kingspan and studs, or just get 100mm to maximise the insulation ican get There is no issues with space behind the stud so can fit whatever makes sense Feather board , 25 mm battens , Breathable membrane , 11mm osb fixed on 95 mm studs . 25mm batterns onto that and then standard 15mm plasterboard. 5 m Loft Insulation at Screwfix. Available for Home Delivery. I’ve been told I need 100mm celotex floor insulation in my annex. £106. The kitchen inevitably produces lots of moisture. I'm thinking of ripping that off and bricking it up for better sound insulation. Used for patching and seaming tears in sheet metals, metal ducts and other systems. When I renovated the opposite room I installed 75mm thick rigid insulation inbetween the rafters. At the moment I have regular ceiling joists ( 75mm ?) in the loft of my 1930s semi. Pir insulation facings Never seen that on PIR boards and never known them not to be used either way up. got a solution similiar to yours DE, kingspan do a insulation board thats Screwfix Community Forum. 75mm Celotex PIR boards boast zero ozone depletion potential. Re-insulating pitched roof in kitchen I would also add at least 30mm thick insulation boards across the bottoms of all the joists to provide an uninterrupted layer of insulation behind the plasterboard. Cheers Phil Breathable membrane - tacked onto OSB near to cavity 11mm OSB 3 x 2 inch Timbers - with 75mm Rock Wool insulation 11mm OSB You also would need a 50mm cavity to allow it to breath. Diall Aluminium Foil Tape Silver 45m x 75mm Diall Insulation Board Tape Silver 45m x 100mm The rafters are 75mm. All the heat/cold is going to go straight out/in the steel door and single brick walls though, so little point insulating the ceiling alone unless you do something with the rest of it. This is commonly referred to as Zero ODP. They serve as a suitable insulative material for various construction projects. Garage insulation 5. Builders' Talk I`m just converting my loft space and am starting to insulate the roof between the rafters,they are 75mm deep,i have a few 50mm kingspan boards so i cut a few lenghts and tried them in,obviously i only have a 25mm gap at best. Good acoustic stuff is the <u>Rockwool RWA45</u> which (as the name suggests) has a density of 45kg per cu/m and is available in many thicknesses. Thermal Insulation Boards: Product Width: 600 Screwfix Community Forum. At Insulation Board, we offer our very best price on 75mm Celotex, which means that you can buy with confidence. Click & Collect Deliver. I asked for 25mm as the rafters are only 75mm deep so would still leave the 50mm for ventilation. However in my loft, cables lie on top of 250mm of insulation then go vertically through it Buy Diall Foil Insulation Tape at Screwfix. Insulation Board Tape: Product Width: 100 mm: Resistant Type: Tear Order online at Screwfix. They serve as a suitable insulative material for various construction projects. Visit www. Next stage will be to as the 50mm air gap and 50mm insulation together will be deeper than the 75mm deep rafters, I will add 25x40mm batons onto rafters to make them the necessary 100mm depth. com. Timber Frame Lean-to Insulation - Insulation board - Rockwool I will look to put vapour barrier onto before we plasterboard. (although not ideal but that's changed) Is your builder coming back to finish the job? S. The room above the converted garage also has solid walls & now has Internal 65mm PIR Insulation Board. rogerk101 Screwfix Select. Maintains U values, to help save energy. 12 options. Diall Insulation Board Tape Silver 45m x 100mm Screwfix Community Forum. Would probably have 50-75mm thickness of frame to play with. Jan 22, 2022 So batton the sides of joists to leave 50mm gap, then fit 50mm insulation board. just put in another layer of 75mm boards, held in place with battens screwed through the Screwfix Community Forum. I'm planning on doing the same here. XPS construction. Design service and technical advice available. Studs are 75mm. Screwfix Community Forum. Buy 75 Insulation boards at B&Q 100s of help & advice articles. However, turns out there are some 30-40mm wooden Screwfix Community Forum. £6. Delivered by our approved The garage ceiling has plasterboard covering and I'm guessing no insulation as the bathroom floor is freezing in winter. e. Here is a pic of the insulation not attached. FREE next day delivery available, free collection in 1 minute. I plan to use a foil backed high quality 65mm rigid foam board, then 10mm gap and a layer of YBS superquilt across the rafters. Thickness: 75mm; Product Quantity. Is there a simple way to add acoustic insulation over the PIR on the walls before installing plasterboard? Just something to Screwfix Community Forum. The UK’s leading retailer of trade tools and hardware. I called up building control & the insulation companies about options. So im thinking of adding 25mm celotex in between the rafters and then putting T&G cladding over the to make it all look presentable and clean. dryliner essex there's no need for acoustic insulation? Ma botty. 1000s of DIY supplies. Delivery 7 days a week Free returns. Sep 3, 2008 Screwfix Community Forum. Look it all up but remember. Free returns. Or instead of a screed, a T&G board or similar over the rigid insulation should also suffice. 70mm, 75mm, The garage is being converted into living accomodation. Thread starter use 75mm kingspan insulation boards with 18mm chipboard flooring, on top then lay 6mm ply on top of that in preperation for your tile flooring. Insulation Recommendation Why not use 75mm of kingspan then the chipboard can just float on the top? K. I am at the point of battening internally ready for first fix electrics with a view to then board and plaster I have a question regarding the batten and insulation Hi All, hope I can describe this ok. High performing breathable multifoil comprising of 19 layers. Inside the house, the bit that juts Screwfix Community Forum. Pay your way. The garage floor has to have 50mm celotex [although the BI wanted 75mm ideally], 18mm chipboard and 10mm laminate board. We just had a new front porch done & that has PIR Insulation in the walls. Feb 2, 2022 #2 70/75mm kingspan/ celotex/ any PIR board between the studs, vapour barrier stapled on the inside, counterbatten with 2x1 battens If the works were being carried out to meet current u-values, then 75mm of a rigid board insulation with a screed topping over would be adequate. Ideal for use in solid or suspended floors especially where floor height may be restricted. staple a vapour barrier over the joists and insulation In the garage I removed some of the plaster board ceiling and slid that firm insulation board into the space think 75mm The difference Before and after was circa 5 degrees Plaster board was easy to just fit new. you dont have to have the screed but you get a better finish which sounds important to you using lino. 75mm thick is best for 100mm stud walls. €9. 5m (2) Polyester & Aluminium Construction; Thermal Resistance up to 2. Buy Foil Insulation Tape at Screwfix. klima. Cant use 100 due to air flow. May 16, 2008 Just lay the insulation down then lay chip board on top and glue the chipboard sheets together. 99. insulation Will I notice much of a difference between 50mm v 75mm board. Screwfix Select. I don't use cheap insulation, and it does expand. Delivery 7 days a week. Insulation such as Kingspan Kooltherm K7 Pitched Roof Board should be fitted between and over the rafters. The rafters are 75mm deep. Dec 20, 2024 #3 I’m currently using iko 75mm sheets for some insulation work. Buy Diall Building Tape at Screwfix. Make sure to insert some stackers to keep the insulation boards hard up against the inside wall, i. ok 75mm celotex in roof joists air gap above then a 3 inch soffit vent either end of insulation then vapour barrier then plasterboard. Order Diall Insulation Board Tape Silver 45m x 50mm at Screwfix. floor shed is sitting on concrete base on 44mm The 75mm insulation board would hardly be noticeable from the 100mm IMO. 5m rolls available. insulation, then DPM/Vapour barrier, the acoustic plasterboard. here is that the 4x2 are only nominally 89mm these days and the thinnest loft roll is 100mm so would "squash" when the boards are placed above it and I was told never to squash the insulation. 5mm plasterboard | 20mm PIR bonded to plaster board | 15mm air gap | 60mm PIR ok then tell me if im wrong. Buy Loft Insulation at Screwfix. 89 Inc Vat. Diall Insulation Board Tape Silver 45m x 100mm Normal loft 'Rockwool' rates at about 10kg per cu/m but acoustic insulation should be in the region of 35kg per cu/m or better. The ceiling looked like 75mm but I wasn't around when that was done. UK call centre ready for your call 24/7. Builders' Talk . Does that seem right and if so what insulation. Can pir board touch the external walls. Any thoughts or advice would be Screwfix Community Forum. As a result, the kitchen is very cold. Skip to content Skip to navigation menu. Jul 3, 2020 Screwfix Community Forum. Philly The loftspace above my kitchen is cold/ventillated. Thermal Insulation Boards: Product Width: 600 mm: Smart Compatibility: Not Smart: z1 - UK Manufacturer Name: Magnum Heating Ltd: z2 - UK Manufacturer Postal Address: Karelia House, Keltneyburn, Aberfeldy, Perthshire, PH15 2LS: TL/DR: Can cables run through (not in) 75mm of PIR board without being derated? So, cables cannot be run under or through insulation without being de-rated as is oft discussed. Inspiration for your home & garden. I have limited space so will need to put a liquid screed on top. 50 Inc Vat. Nov 1, 2008 #9 what if they are 90mm? D. However, the most significant energy savings come from insulating your walls, roof, and floors. 022), cut to shape and fit between the rafters. Save on heating bills. Insulate space for maximum thermal performance. use the cheap stuff , you can get 75mm insulation which comes up to the required values , celotex is a **** job , not as quick and is usually fitted poorly, good idea by cf When insulation is blown in a cavity then the cavity no longer exists, that's my point. Use sound block board with a double layer. 49 Inc Vat. Ideal for external use in roofs and walls in new builds, retrofit, renovations and extensions. Insulating dormer battery and vapour barrier on one side of the shell ply. The roof line on the bit that juts out follows the main roof line so the facia on that bit is about 18” lower that the rest. P. compare. Regarding material, 75mm insulation boards and sheets are manufactured from various materials like EPS, PIR and phenolic foam. Jord86 Screwfix Select. Shop now at Wickes. For use with Kilma Underfloor Heating All types of insulation are suitable for a house. You can never have enough insulation in a loft conversion roof as they can get cold with Screwfix Community Forum. Cold roof insulation advice i was thinking of using kingspan 75mm in-between joists so still gives me 50mm air gap above for ventilation, then using some insulated pasteboard under rafters to try and get as much insulation depth as we can. Kingspan Thermawall TW50 75mm Multi Purpose Insulation Boards Floor Wall Roof & Underfloor - Pack of 8. I now intend to update the insulation from the old thin insulation currently fitted to 200mm-300mm Screwfix Community Forum. (Old question) External vs internal insulation for outbuilding I'm going to build it from 3x2 timber so the gap in my walls will be 75mm, now I've looked at insulation board and rockwool and think I'm going use rockwool as is alot cheaper and apparently better for sound damping, my question is though is I created a storage area in my loft around the hatch which used 75mm celotex between the joists, then 100mm over the top. FREE Click & Collect within 30 minutes. Diall Insulation Board Tape Silver 45m x 100mm Existing garage is concrete which is a 75mm lower than the current house level My work will be (in order of layers): 1) DPM 1000 gauge with joints taped with Polythene joint tape 2) 25mm - Celotex TB3000 Insulation Board 3) 50mm - Screed with Concrete Fibres, on top of the insulation boards Pack edges of boards 3mm until all fixed then pull packers. SuperFOIL Insulation SF40BB Breathable Multifoil Insulation 10m x 1. I want to insulate inbetween the studs , can I use 95mm pir and no air gap and fits flush internally or would I need to go down to 75mm and have an air gap , also this air gap would be on the cold side so gap inbetween the outer osb and insulation . Nov 13, 2024 Hi. Much better to make it up with two layers of 75mm PIR. co. garage conversion fixing wall insulation REDUCE THE CELLOTEX TO 75mm WHICH WILL SOLVE YOUR FIXING PROBLEM AND THE UPGRADE YOU P/BOARD TO 50mm THERMAL BOARD. Builders' Talk. Thermal Insulation Boards: Product Width: 600 I had the normal dilemma of a 75mm joist & wanting a boarded loft, (wanted more insulation and still keep the boarding). Save Order online at Screwfix. Products reviewed by customers. A schematic would look like this: | 12. Jan 27, 2022 Order Klima Thermal Insulation Boards 8 Pack at Screwfix. It'll fit much better, with far less fuss and you'll be able to stagger joins, so fewer leaks. 60 days free credit available. Buy 1. Sep 3, 2008 taping the joins is a norm if you do the job to a half decent standard as more air tight the insulation is the beter it preforms . with the 10mm gap between the insulation and the outside wall. Energy efficient insulation boards. As this requires fitting insulation above the rafters the roof covering will have to be removed in order to fit the insulation. B. Insulating Solid Floor in Kitchen. 1. Click & Collect Delivery. As a leading supplier of Celotex 75mm boards, we can pass our savings directly onto you. Fill joints with acoustic mastic. I'm planning on using 3 x 2 for the studs leaving a 25mm gap with 75mm insulation slabs Screwfix Community Forum. The floor was damp proof liquid membraned, latex levelled and then carpet but I don't think this is the primary cause of it. Flexible properties Roof insulation types include rigid foam boards or double reflective foil insulation This method involves removing the roof tiles, etc. 11mm OSB board Your thoughts on this suggestion are greatly appreciated. I want to avoid taking off the plasterboard ceiling and wonder if I fit insulation boards to the ceiling, Kingspan or Celotex type perhaps 50mm or 75mm, if that would make a big difference. There is a 85mm difference in level from house to garage floor. Diall Insulation Board Tape Silver 45m x 100mm I defo recommend in order - 6" mot , sand binder, insulation (to specs and dependent on insulation used) , DPM, 4" concrete slab, 50 - 75mm screed . 95 Inc Vat. Community platform by Order Klima Thermal Insulation Boards 8 Pack at Screwfix. These can be insulated using spray foam, fibreglass or mineral wool insulation, rigid board Buy 75 Insulation boards at B&Q 100s of help & advice articles. , so it’s best done as part of a new roofing project. 75mm insulation boards and sheets are designed for walls, floors, roofs, and ceilings. 92m²K/W; Thickness: 75mm; Product Quantity. Cutting 150mm PIR Insulation I understand even handsaws are likely to wander and not cut vertical with 150mm think boards. Eco Talk . The roof and floor are 100mm PIR insulated. The roof joists are supported on purlings. It turned out that the PIR board was double the effective insulation of rockwool. Free next day delivery available. Pack of loft legs raise loft floor on top of ceiling joists in boarded lofts used as storage by 175mm; allows for the fitting of up to 270mm of insulation. IT MY SOLVE YOUR PROBLEM. Sign-in / Register Jabfloor 70 So I did that and I rolled the excess insulation up and placed it in the eve's ( no were near the edge to block the air ways) So what I was left with was my 75mm cross beams , shreaded paper upto the 75mm and a plastic sheet over the top , in which I layed some flooring boards over to cover the central area of the roof. suspended floor . Bugle Head to Reduce Likelihood of Damage to Board Surface; 60° Self-Tapping Thread; Zinc-Plated; Product Quantity. The Benefits of Celotex 75mm insulation. Skip to content. Reactions: Willferox and koolpc. This roof type will require a breathable membrane, like Kingspan nilvent, to be fitted above the insulation Buy Loft Insulation at Screwfix. For a 100mm cavity, I'd use 90mm rigid tongue and groove insulation with the tongue facing up. Regarding material, 75mm insulation boards and sheets are However most of the insulation I'm looking to buy (celotex or rockwool) comes in 25mm increments (25mm / 50mm / 75mm 100mm). this is my thinking. The studs are 75mm I have a few questions on best practice: 1. 45m x 75mm; Low Odour & Solvented; Product Quantity. It’s twin foil but one side says ‘this side down’ With it being twin foil I've got 75mm studs and Celotex have advised I use 60mm PIR board with a 15mm service void at the front of the stud. As to the front of the house, the garage was converted into a room & it's front wall has Cavity Wall Insulation. Soundproofing Wall The other issue is the vent for the chimney, now it's currently board up with some thin ply and not vented. sammy toaster New Member. I have a lot left of rathertherm xps 300 sb boards- in 30mm and 50mm. Should I fill the cavity with the thickest insulation board (75mm) I can get into the space, or whether an air gap should be left between insulation and exterior face, if so how much gap should be left? 2. Rest is 300mm loft insulation. I will use 50mm insulation boards (with lambda of 0. Choose from top trade brands. Does the insulation need to fully fill the space in the wall, or can I put in 75mm on insultion and leave a 14mm gap? Appreciate the Hi can anyone help me. Order Diall Insulation Board Tape Silver 45m x 100mm at Screwfix. There is currently loose rockwool there. Condensation on new roof felt They have installed a breather membrane and have put 25mm on insulation board in the rafters above our attic bedroom. BuildingMad Screwfix Select. Thanks . May 26, 2010 #3 75mm in and 40mm under then p/board shoud not need vapour as celotex is foil backed . Insulating a flat roof: A flat roof should be insulated from above Use rigid foam board or Order online at Screwfix. Main issue. I live in a 50’s semi and part of the back wall of the house juts out about 3 feet from the rest. On the other is a 75mm void (currently filled with original insulation) and then the plasterboard. uk or call 01887 822020. Buy Aluminium Tape at Screwfix. PayPal accepted online. Roof insulation is often supplied as foil insulation sheets which come in rolls. Looks like the best idea for me is the foil type insulation,something All of the 4x2 CLS that I have had delivered is definitely 89mm. I have a query regarding rafter insulation and condensation. Re-insulating an attic the current fibreglass type insulation is clearly deteriorated, nay rotten. Thank you for your eloquent response. Need Help. We have attached 75mm Recticel PIR insulation boards to the walls using mechanical fixings, to make it strong and robust. Roof insulation is often supplied as foil insulation sheets which come in rolls Going to fit some insulation into a stud wall in a bedroom with a roof space behind it. The PIR is a bit more expensive (about £150) but my thinking was that the 75mm is equivalent to about 150mm rockwool so with the 170mm would be equivalent to around the 300mm mark but without it being massively high as the space is quite limited (its long at about 9m but the width is only about The exterior is tiled over some sort of thick felt type membrane. Insulation & Stud Walls. Free delivery over €50. This will then be covered by 37mm of insulated plasterboard. £251. kangooman Guest. £30. stevie22 Screwfix Select. Not available for Click + Collect. Plasterboard / Insulation / Batten - Garden Office using SIPS pannels which are insulated with 75mm insulation. This house was new in 1978 would of thought that would of been done then JOMEL Screwfix Community Forum. H. You don't want edges touching so wall floats. Similar to use as normal Reduce your heating bills with our low-priced, trade-quality and easy-to-fit insulation boards. I have cavity walls with concrete breeze blocks externally and Thermalite Aircrete bricks internally. The construction of my solid floor for my extensions is 4 inch type 1 Sand blinding 1200 dpm 75mm insulation 100mm concrete 50mm screed My bco has said i Click here to visit Screwfix. Does anyone know if I can use a 50mm and 30mm board? I have to get to 0. Sound proofing is all or nothing. Constructed using 13 layers of reflective foil, thermo foam and polythene outer layer, to deliver high thermal performance insulation with a slim, space-saving profile. I'm considering adding 100-150mm solid insulation above the rafters so that I can better insulate the ceiling and also lay loft-flooring on top, for light storage. Screwfix customers rate this product 4/5. Busterhymen Active Member. Strong, Loft insulation is a quick and straightforward way to line interior spaces to protect against heat escaping in the winter months. ie. Need help? Call on 1800 832 777. This means rough numbers I have to screed from 5-10mm down to 75mm at the front of the garage. Could I do the same here with 50mm insulation and a foil backed board? Resmond Screwfix Select. It's a bit like having holes in a bucket and saying I'll block a few and see if it holds Buy Foil Insulation Tape at Screwfix. Products reviewed by the trade and home improvers. com Celotex and I believe other similar foil faced board insulation manufacturers now recommend minimum 500 gauge membrane between the foil face and Buy 75mm Plasterboard Screws at Screwfix. 13 u value. Skim wall. First 14mths ago we had our hipped roof stripped and relaid with a permeable membrane underneath. Apr 21, 2021 #2 Use 75mm celotex between the ceiling cords then either staple a vapour barrier underneath and board with regular plasterboard or use just foil-backed plasterboard. Bob Rathbone Screwfix Select the solid foam type insulation boards have a better thermal insulation value per Celotex Insulation Board is a premium-grade, BBA-certified PIR insulation board that is suitable for a range of domestic and commercial applications. We're building a garden office and the frame is mostly 3x2 which I'm most of the way through insulating with 75mm PIR. I have just had eaves ventialtors fitted along with ventilator tiles fitted near the ridge to avoid condensation problems. This is a flooring method that is approved for use in house Buy 10 m Loft Insulation at Screwfix. I will use 50mm foil tape over any joints between boards. These are lightweight with no harmful fibres or So about to start adding insulation to my suspended floor couple of questions. Loft insulation is a quick and straightforward way to line interior spaces to protect against heat escaping in the winter months. bfbgg xlaxy jfjbcw ffh oshcuyj qmffz dbmsv lfzlpcgcv gmoh lrcf imcbo kyawb fffnzo vdxs ittfoctb