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#1
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Quick building regs question about attic room height requirements.
Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require.
Many thanks, JD |
#2
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Quick building regs question about attic room heightrequirements.
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#3
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Quick building regs question about attic room height requirements.
In article ,
wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. I don't remember there being a legal requirement for a percentage of the ceiling height being at or above the legal minimum. You're more likely to have problems with the stairs and fireproofing access than anything else. -- *America is so advanced that even the chairs are electric. Dave Plowman London SW To e-mail, change noise into sound. |
#5
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Quick building regs question about attic room heightrequirements.
On 11/05/2016 22:31, Chris Hogg wrote:
On Wed, 11 May 2016 08:40:06 -0700 (PDT), wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. Many thanks, JD You ought to check the building regs before you start doing anything serious, as I think you'll find that there's quite a lot more required than simply height if you want to make it into a habitable room. Read some of these links http://tinyurl.com/jhdh55n +1 In case its any use, here is one I did "earlier" (like 12 years ago - and the rules have changed a bit since then): http://www.internode.co.uk/loft/ -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#6
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Quick building regs question about attic room height requirements.
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#7
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Quick building regs question about attic room height requirements.
On Thursday, May 12, 2016 at 1:04:02 AM UTC+1, John Rumm wrote:
On 11/05/2016 22:31, Chris Hogg wrote: On Wed, 11 May 2016 08:40:06 -0700 (PDT), wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. Many thanks, JD You ought to check the building regs before you start doing anything serious, as I think you'll find that there's quite a lot more required than simply height if you want to make it into a habitable room. Read some of these links http://tinyurl.com/jhdh55n +1 In case its any use, here is one I did "earlier" (like 12 years ago - and the rules have changed a bit since then): http://www.internode.co.uk/loft/ -- Cheers, John. Very helpful - thanks. You and the other responees have given me what I needed to know: ie., just enough to be able to decide on the rough roof dimensions, pitch etc. JD |
#8
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Quick building regs question about attic room height requirements.
On Thursday, May 12, 2016 at 12:45:43 AM UTC+1, Dave Plowman (News) wrote:
In article , wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. I don't remember there being a legal requirement for a percentage of the ceiling height being at or above the legal minimum. You're more likely to have problems with the stairs and fireproofing access than anything else. That's useful to know - thanks. I guess that will be down to choice of materials and won't affect dimensional constraints - so I've got what I need to know (just enough to do basic planning of the roof dimensions and pitch.. JD |
#9
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Quick building regs question about attic room heightrequirements.
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#10
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Quick building regs question about attic room height requirements.
In article ,
John Rumm wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to There is no required height for a room, only over a staircase (and that is slightly relaxed for loft access) Interesting. I had an existing attic room with proper staircase to it enlarged. All under the control of an architect whose work is exceptional. Bacisally, a full height window across the back wall to replace the original tiny dormer and a flat roof to it - so giving a lot more floor area, as well as plenty light. The front tapers down under the roof to about 4ft high - just about OK for chests of drawers and using them if you're careful not to bang your head. Snag was by the time they'd installed the larger floor joists needed for such a long span, they also had to raise the ceiling height. Making the job vastly more expensive. (my guess was a structural engineer on his first job. ;-)) I was told there was a legal minimum for any 'new' work. -- *Money isn't everything, but it sure keeps the kids in touch * Dave Plowman London SW To e-mail, change noise into sound. |
#11
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Quick building regs question about attic room height requirements.
In article ,
wrote: On Thursday, May 12, 2016 at 12:45:43 AM UTC+1, Dave Plowman (News) wrote: In article , wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. I don't remember there being a legal requirement for a percentage of the ceiling height being at or above the legal minimum. You're more likely to have problems with the stairs and fireproofing access than anything else. That's useful to know - thanks. I guess that will be down to choice of materials and won't affect dimensional constraints - so I've got what I need to know (just enough to do basic planning of the roof dimensions and pitch.. If you want a reference and some interesting information see: https://www.homebuilding.co.uk/loft-...-design-guide/ The section on "Meeting the Regs: Ceiling Height" is nearly half way down the page. Hope this helps Alan -- Using an ARMX6 |
#12
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Quick building regs question about attic room heightrequirements.
On 12/05/2016 13:30, Alan Dawes wrote:
In article , wrote: On Thursday, May 12, 2016 at 12:45:43 AM UTC+1, Dave Plowman (News) wrote: In article , wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. I don't remember there being a legal requirement for a percentage of the ceiling height being at or above the legal minimum. You're more likely to have problems with the stairs and fireproofing access than anything else. That's useful to know - thanks. I guess that will be down to choice of materials and won't affect dimensional constraints - so I've got what I need to know (just enough to do basic planning of the roof dimensions and pitch.. If you want a reference and some interesting information see: https://www.homebuilding.co.uk/loft-...-design-guide/ The section on "Meeting the Regs: Ceiling Height" is nearly half way down the page. Hope this helps That confirms what I thought. There is no minimum height, except over the stairs. |
#13
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Quick building regs question about attic room height requirements.
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#14
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Quick building regs question about attic room heightrequirements.
On 12/05/16 21:54, Phil L wrote:
wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. As others have said, the height is more or less up to you, from a safety point of view, fireproofing is your biggest headache. All your downstairs and upstairs doors (into habitable rooms - not kitchen or bathroom) will have to be changed to 1 hour firedoors, not so much of a biggy, except the frames aren't suitable, which means you'll have to have all the doors and frames in the house removed and new ones fitted, with closers and intumescent strips. All the ceilings in the house may have to have another layer of plasterboard and be plastered, this is quite probably going to upset the decor in the whole house, so make sure you factor these jobs into any costings etc before you start. Are you sure? Or is it a recent change? I know of a 3rd storey attic conversion that was done by the book a few years ago and non of this was required. |
#15
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Quick building regs question about attic room height requirements.
Tim Watts wrote:
On 12/05/16 21:54, Phil L wrote: wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. As others have said, the height is more or less up to you, from a safety point of view, fireproofing is your biggest headache. All your downstairs and upstairs doors (into habitable rooms - not kitchen or bathroom) will have to be changed to 1 hour firedoors, not so much of a biggy, except the frames aren't suitable, which means you'll have to have all the doors and frames in the house removed and new ones fitted, with closers and intumescent strips. All the ceilings in the house may have to have another layer of plasterboard and be plastered, this is quite probably going to upset the decor in the whole house, so make sure you factor these jobs into any costings etc before you start. Are you sure? Or is it a recent change? I know of a 3rd storey attic conversion that was done by the book a few years ago and non of this was required. Without knowing the exact layout of his house, it's impossible to say, I've only worked on newbuild where there's a loft room, but there are plenty of rules for existing houses too: https://www.labc.co.uk/sites/default...onversions.pdf He will need firedoors on the landing and quite possibly downtairs too if the staircase isn't enclosed. Closers aren't required though |
#16
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Quick building regs question about attic room heightrequirements.
On 12/05/2016 21:58, Tim Watts wrote:
On 12/05/16 21:54, Phil L wrote: wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. As others have said, the height is more or less up to you, from a safety point of view, fireproofing is your biggest headache. All your downstairs and upstairs doors (into habitable rooms - not kitchen or bathroom) will have to be changed to 1 hour firedoors, not so much of a biggy, except the frames aren't suitable, which means you'll have to have all the doors and frames in the house removed and new ones fitted, with closers and intumescent strips. All the ceilings in the house may have to have another layer of plasterboard and be plastered, this is quite probably going to upset the decor in the whole house, so make sure you factor these jobs into any costings etc before you start. Are you sure? Or is it a recent change? I know of a 3rd storey attic conversion that was done by the book a few years ago and non of this was required. ISTR recall the rules changed a bit after I did mine... I needed to do fire doors on the new storey for all habitable rooms, and then only add self closers for any doors on other storeys that opened onto the escape route. IIUC they changed it after, to no longer require the self closers, and to also require 30 min fire doors on the other storeys for doors opening onto the escape route. They also did away for the need for escape windows on a conversion that extends beyond two storeys. You still need 30 min fire protection to the ceiling of the second storey, and mains interlinked smoke alarms on each storey. For the fire doors there was a minimum depth of 25mm for the door stop - there was no requirement for intumescent strips etc then - not sure about now. (I used standard linings, but made up my own stops by ripping down and thicknessing slices off a 8x3") You also need three fire rated hinges per door. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#17
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Quick building regs question about attic room heightrequirements.
On 13/05/16 00:02, John Rumm wrote:
On 12/05/2016 21:58, Tim Watts wrote: On 12/05/16 21:54, Phil L wrote: wrote: Could anyone save me a headache and tell me how much head-room is required in a room build within a pitched roof space? I am hoping to make a room whose height varies because of the pitch of the roof. At one side of the room, the wall will be about a metre tall, and the other side of the room will have a wall that is taller than a tall human... But I'd like to know what are the minimum requirements. What percentage of the room needs to be taller than a human? When I sell the place, I'd like to be able to call the planned attic room an (official) 'bedroom'. (And yes, the floor will be reinforced with whatever joist specs building regs require. As others have said, the height is more or less up to you, from a safety point of view, fireproofing is your biggest headache. All your downstairs and upstairs doors (into habitable rooms - not kitchen or bathroom) will have to be changed to 1 hour firedoors, not so much of a biggy, except the frames aren't suitable, which means you'll have to have all the doors and frames in the house removed and new ones fitted, with closers and intumescent strips. All the ceilings in the house may have to have another layer of plasterboard and be plastered, this is quite probably going to upset the decor in the whole house, so make sure you factor these jobs into any costings etc before you start. Are you sure? Or is it a recent change? I know of a 3rd storey attic conversion that was done by the book a few years ago and non of this was required. ISTR recall the rules changed a bit after I did mine... I needed to do fire doors on the new storey for all habitable rooms, and then only add self closers for any doors on other storeys that opened onto the escape route. IIUC they changed it after, to no longer require the self closers, and to also require 30 min fire doors on the other storeys for doors opening onto the escape route. They also did away for the need for escape windows on a conversion that extends beyond two storeys. You still need 30 min fire protection to the ceiling of the second storey, and mains interlinked smoke alarms on each storey. For the fire doors there was a minimum depth of 25mm for the door stop - there was no requirement for intumescent strips etc then - not sure about now. (I used standard linings, but made up my own stops by ripping down and thicknessing slices off a 8x3") You also need three fire rated hinges per door. Wow. Glad I'm not building one! (Just tarting up an old one) |
#18
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Quick building regs question about attic room height requirements.
In message , Phil L
writes Are you sure? Or is it a recent change? I know of a 3rd storey attic conversion that was done by the book a few years ago and non of this was required. Without knowing the exact layout of his house, it's impossible to say, I've only worked on newbuild where there's a loft room, but there are plenty of rules for existing houses too: https://www.labc.co.uk/sites/default...onversions.pdf He will need firedoors on the landing and quite possibly downtairs too if the staircase isn't enclosed. Closers aren't required though I've just hit this with a design for a chalet bungalow alteration with an open staircase to a *gallery lounge*. Fire door and self closer on landing access to bedrooms. Drawings currently with BC so we'll see. -- Tim Lamb |
#19
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Quick building regs question about attic room heightrequirements.
On 13/05/2016 07:22, Tim Watts wrote:
On 13/05/16 00:02, John Rumm wrote: ISTR recall the rules changed a bit after I did mine... I needed to do fire doors on the new storey for all habitable rooms, and then only add self closers for any doors on other storeys that opened onto the escape route. IIUC they changed it after, to no longer require the self closers, and to also require 30 min fire doors on the other storeys for doors opening onto the escape route. They also did away for the need for escape windows on a conversion that extends beyond two storeys. You still need 30 min fire protection to the ceiling of the second storey, and mains interlinked smoke alarms on each storey. For the fire doors there was a minimum depth of 25mm for the door stop - there was no requirement for intumescent strips etc then - not sure about now. (I used standard linings, but made up my own stops by ripping down and thicknessing slices off a 8x3") You also need three fire rated hinges per door. Wow. Glad I'm not building one! (Just tarting up an old one) Yours would sidestep most of the rules anyway since its not adding a third storey. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#20
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Quick building regs question about attic room heightrequirements.
On 13/05/16 09:01, John Rumm wrote:
On 13/05/2016 07:22, Tim Watts wrote: On 13/05/16 00:02, John Rumm wrote: ISTR recall the rules changed a bit after I did mine... I needed to do fire doors on the new storey for all habitable rooms, and then only add self closers for any doors on other storeys that opened onto the escape route. IIUC they changed it after, to no longer require the self closers, and to also require 30 min fire doors on the other storeys for doors opening onto the escape route. They also did away for the need for escape windows on a conversion that extends beyond two storeys. You still need 30 min fire protection to the ceiling of the second storey, and mains interlinked smoke alarms on each storey. For the fire doors there was a minimum depth of 25mm for the door stop - there was no requirement for intumescent strips etc then - not sure about now. (I used standard linings, but made up my own stops by ripping down and thicknessing slices off a 8x3") You also need three fire rated hinges per door. Wow. Glad I'm not building one! (Just tarting up an old one) Yours would sidestep most of the rules anyway since its not adding a third storey. Oddly the BCO did confirm I needed egress windows (which I was going to do anyway - as well, it's just sensible). |
#21
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Quick building regs question about attic room heightrequirements.
On 13/05/2016 09:29, Tim Watts wrote:
On 13/05/16 09:01, John Rumm wrote: On 13/05/2016 07:22, Tim Watts wrote: On 13/05/16 00:02, John Rumm wrote: ISTR recall the rules changed a bit after I did mine... I needed to do fire doors on the new storey for all habitable rooms, and then only add self closers for any doors on other storeys that opened onto the escape route. IIUC they changed it after, to no longer require the self closers, and to also require 30 min fire doors on the other storeys for doors opening onto the escape route. They also did away for the need for escape windows on a conversion that extends beyond two storeys. You still need 30 min fire protection to the ceiling of the second storey, and mains interlinked smoke alarms on each storey. For the fire doors there was a minimum depth of 25mm for the door stop - there was no requirement for intumescent strips etc then - not sure about now. (I used standard linings, but made up my own stops by ripping down and thicknessing slices off a 8x3") You also need three fire rated hinges per door. Wow. Glad I'm not building one! (Just tarting up an old one) Yours would sidestep most of the rules anyway since its not adding a third storey. Oddly the BCO did confirm I needed egress windows (which I was going to do anyway - as well, it's just sensible). I think they stopped insisting on that on higher storeys since they figured the risk of climbing out onto a high roof, potentially in the dark and the rain, was probably worse than taking your chances with a fire! -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
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