Damp proof membranes, is it normal not to worry about holes in them?
 

I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?

--
Chris Green
·

Damp proof membranes, is it normal not to worry about holes in them?
 

"Chris Green" wrote in message
...
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?

I wouldn't worry about it ......

Damp proof membranes, is it normal not to worry about holes in them?
 

On Saturday, 29 December 2018 15:03:06 UTC, Chris Green wrote:
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?

--
Chris Green
·

They are there to top the passage of water vapour, not actual water & therefore are not totally waterproof.

Damp proof membranes, is it normal not to worry about holes inthem?
 

Chris Green Wrote in message:
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?


Change proof to "control" & it makes more relative sense.


Slightly more troubling is 'bolts through the underfloor dpm...?
How thick is the floor? Made of what?
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

Damp proof membranes, is it normal not to worry about holes in them?
 

"Jim K.." wrote in message
o.uk...
Chris Green Wrote in message:
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?


Change proof to "control" & it makes more relative sense.


Slightly more troubling is 'bolts through the underfloor dpm...?
How thick is the floor? Made of what?

In my case I have a massive great concrete slab that forms the
entire floor with the DPM under that and up the sides. Any
bolts used to bolt the SIPs to that slab don't go thru the DPM.

Damp proof membranes, is it normal not to worry about holes in them?
 

I've been watching a lot of Holmes on Homes videos on youtube,
pretty certain that in one he said that each puncture hole in the membrane lets through a cupful of water a year.

He rips out a lot of soggy mouldy rockwool.

He's canadian - they need insulation there summer and winter !

George


On Saturday, December 29, 2018 at 3:03:06 PM UTC, Chris Green wrote:
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?

--
Chris Green
·

Damp proof membranes, is it normal not to worry about holes in them?
 

On Friday, 4 January 2019 21:57:27 UTC, George Miles wrote:
I've been watching a lot of Holmes on Homes videos on youtube,
pretty certain that in one he said that each puncture hole in the membrane lets through a cupful of water a year.

He rips out a lot of soggy mouldy rockwool.

He's canadian - they need insulation there summer and winter !

George


On Saturday, December 29, 2018 at 3:03:06 PM UTC, Chris Green wrote:
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?

Info on the topic here.
https://en.wikipedia.org/wiki/Interstitial_condensation

Damp proof membranes, is it normal not to worry about holes inthem?
 

On 04/01/2019 21:57, George Miles wrote:
I've been watching a lot of Holmes on Homes videos on youtube,
pretty certain that in one he said that each puncture hole in the membrane lets through a cupful of water a year.

He rips out a lot of soggy mouldy rockwool.

He's canadian - they need insulation there summer and winter !

George


On Saturday, December 29, 2018 at 3:03:06 PM UTC, Chris Green wrote:
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?

--
Chris Green
·


Sounds like a reason not to use rockwool in that particular scenario...

You can't rely on DPM being 100%. It needs to slow ingress to the point
where what little makes it through can escape via other means.


--
Email does not work

Damp proof membranes, is it normal not to worry about holes inthem?
 

harry Wrote in message:
On Friday, 4 January 2019 21:57:27 UTC, George Miles wrote:
I've been watching a lot of Holmes on Homes videos on youtube,
pretty certain that in one he said that each puncture hole in the membrane lets through a cupful of water a year.

He rips out a lot of soggy mouldy rockwool.

He's canadian - they need insulation there summer and winter !

George


On Saturday, December 29, 2018 at 3:03:06 PM UTC, Chris Green wrote:
I've been lookng at some FAQs and fitting details relating to SIPs
supplied by a local supplier (http://www.supersips.uk.com).

As far as I can tell from this information it would seem that both the
DPM under the floor and the breathable membrane between the panels
and cladding are punctured by the fixings. The underfloor DPM seems
to have fixing bolts through it and the breathable wall membrane is
fixed using 'staples'.

Is this normal, it seems to rather defeat the object of using the
membranes?

Info on the topic here.
https://en.wikipedia.org/wiki/Interstitial_condensation


Is it murican?
Some of it is well garbled.

"Spray foams*may also act as a vapour barrier"

Mmm
--
Jim K


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