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Ask The Trades › DIY Forum › Carpentry Questions › Part M Threashold

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Part M Threashold (Read 12601 times)

birty

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Part M Threashold
Apr 21^st, 2009, 7:40pm

Urgent advice needed. Front door to new build. Seem to remember that threashold cannot be more than 15mm???? Checked out Part M for dwellings and cant find any referance to this only door width on approach to house.. I think its the Manufacturers say threashold has to comply.. Please advise as door being fitted on Sat and I have the standard gradual ramped one to 40mm high one that came with door or a Part M one from Stormseal gradual ramp up to about 25mm(AM3) . Fitting tiles in side the enterance and they will be too high for stormseal one!!! Help. Dont wanna ask Build cont and draw there attention too it!!! Huh

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CWatters

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Re: Part M Threashold
Reply #1 - Apr 21^st, 2009, 9:03pm

Says 15mm here...

http://www.igdoorsltd.co.uk/frame_partm.htm

We opted for a cast concrete/stone cill with a <15mm high weather bar on top. Something like this but not in gold...

http://www.toolstation.com/shop/Hardware/Draught+Excluders/Threshold+Sill+933mm+...

On the outside we formed a simple slot drain to stop water being blown under the door. You can buy linear drains for the purpose or form them easily using paving slabs or whatever you propose to use on the path itself.

http://www.aco-technologies.com/product_search.php?cat_6=28&cat_8=99

Sorry for all the edits to this post. Was looking for this drawing..

« Last Edit: Apr 21^st, 2009, 9:15pm by CWatters »

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birty Trade Member Offline Posts: 90 Total Thanks: 0 For This Post: 0 Gender: Trade: Electrician	Re: Part M Threashold Reply #2 - Apr 21^st, 2009, 9:10pm I know manufacturers say 15mm but part M doesn't!! Where are they getting it from???? I have something similar to that one in the pic but ya cant run tiles up against it internally............
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CWatters Super Member Offline "Daddy fick it" says James Posts: 5150 Total Thanks: 58 For This Post: 0 Gender:	Re: Part M Threashold Reply #3 - Apr 21^st, 2009, 9:19pm Ah I see. I'll have a look and see if I can fin where the 15mm comes from.
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TIMBA-WOLF Board Moderator Offline Timba-Wolf..... Var@*sh, should be banned!! Posts: 7158 Total Thanks: 15 For This Post: 0 KENT,(under a tree!!!!) United Kingdom Gender: Trade: Joiner	Re: Part M Threashold Reply #4 - Apr 21^st, 2009, 9:23pm Try this guys... http://www.igdoorsltd.co.uk/frame_partm.htm
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CWatters

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Re: Part M Threashold
Reply #5 - Apr 21^st, 2009, 9:37pm

In the section on dwellings page 65 section 6.19 it specifies an "accessible threshold". On page 66 it refers to a document called:

"Accessible thresholds in new housing: guidance for house builders and developers" published by the HM stationary office.

I think you have to pay for that document but there is an extract here..

http://www.nevko.com/pages/nevko_building.htm

Quote:

Accessible Thresholds in New Housing (extracts) - UK
Guidance for housebuilders and designers - Published by the Stationery Office

Weather-proofing

2.6 The external leading edge of any proprietary threshold should be no higher than 15 mm, and rounded or chamfered when more than 5 mm, to provide a smother transition for wheelchair users.

That appears to be consistant with Part M section on "Buildings other than dwellings" eg Page 27 para 2.7 says...

Quote:

e) The threshold is level or, if a raised threshold is unavoidable, it has a total height of not more then 15mm, a minimium number of upstands and slopes, with any upstands higher than 5mm chamfered or rounded;

Part M link for reference..
http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADM_2004.pdf

In other words the threshold requirement are similar for dwellings and non dwellings. Although why they couldn't say that in Part M beats me.

« Last Edit: Apr 21^st, 2009, 9:43pm by CWatters »

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CWatters Super Member Offline "Daddy fick it" says James Posts: 5150 Total Thanks: 58 For This Post: 0 Gender:	Re: Part M Threashold Reply #6 - Apr 21^st, 2009, 9:38pm TIMBA-WOLF wrote on Apr 21^st, 2009, 9:23pm: Try this guys... http://www.igdoorsltd.co.uk/frame_partm.htm Is there an echo in here
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birty Trade Member Offline Posts: 90 Total Thanks: 0 For This Post: 0 Gender: Trade: Electrician	Re: Part M Threashold Reply #7 - Apr 22^nd, 2009, 8:01am Well done Mr Watters. Again a invaluable tool in an ever frustrating world!!! Why the hell aint that in Part M??? Still leaves me with the problem of inch tiles on the inside though!! They will be higher than the threashold!!! Rumour has it the BC officer of mine dont look to closely anyway...
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CWatters

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Re: Part M Threashold
Reply #8 - Apr 22^nd, 2009, 8:57am

If the tiles are higher the bottom of the door must also be higher or it will hit the tiles when opened. Therefore the threshold seal has to be raised above the level of the tiles anyway. If you use a 15mm thick threshold seal it can sit on top of the tiles or at least at that height. The real problem sounds like the ramp outside is too low? Check the height of the lintel above the door as wll (eg if the door can't be cut down).

« Last Edit: Apr 22^nd, 2009, 9:23am by CWatters »

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birty Trade Member Offline Posts: 90 Total Thanks: 0 For This Post: 0 Gender: Trade: Electrician	Re: Part M Threashold Reply #9 - Apr 22^nd, 2009, 9:26pm mmmmmmmmmm. greeat this disabled thing... give me the head of the guy who said lets make 'everyone' comply..........
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Twobarrows GDPR opt-out Total Thanks: 0 For This Post: 0	Re: Part M Threashold Reply #10 - Apr 22^nd, 2009, 9:50pm birty wrote on Apr 22^nd, 2009, 9:26pm: mmmmmmmmmm. greeat this disabled thing... give me the head of the guy who said lets make 'everyone' comply.......... Well there must be millions of disabled people in Fleet, cos there are millions of parking spaces for them!
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CWatters

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Re: Part M Threashold
Reply #11 - Apr 23^rd, 2009, 6:59pm

The thing is it's not difficult to comply. Particularly if it's a wooden door with concrete or fake stone cill. Just leave the cill out until you know the FFL then set it in place so it's the same level. Fit the weather strip on the top, build the ramp outside.

We've been in our house two years and I prefer it to having a cill you have to step over.

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The_Trician Trade Member Offline Posts: 7721 Total Thanks: 8 For This Post: 0 Gender: Trade: Electrician	Re: Part M Threashold Reply #12 - Apr 24^th, 2009, 5:11pm Ferk the wheelchair fascists. Making it weather and damp proof is more important. Bloody bureaucrats. TT
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