What can I do with this -
 

Ignore the horrible vermiculite or whatever it is (it's coming out), and the
plywood box and flue, which is to do with the blown air heating (it's coming
out). It's those roof 'trusses/beams' which worry me. There are 5 sets of
those 'supports' at about 8' intervals. How do I remove at least a couple of
them without the roof collapsing?

http://www.cutlerr.pwp.blueyonder.co...rst2%20036.jpg

What can I do with this -
 

In article ,
fred wrote:
Ignore the horrible vermiculite or whatever it is (it's coming out), and
the plywood box and flue, which is to do with the blown air heating
(it's coming out). It's those roof 'trusses/beams' which worry me.
There are 5 sets of those 'supports' at about 8' intervals. How do I
remove at least a couple of them without the roof collapsing?

I'd get a structural engineer in to advise.

--
*Why is the word abbreviation so long? *

Dave Plowman London SW
To e-mail, change noise into sound.

What can I do with this -
 

fred wrote:

out). It's those roof 'trusses/beams' which worry me. There are 5 sets of
those 'supports' at about 8' intervals. How do I remove at least a couple of
them without the roof collapsing?

http://www.cutlerr.pwp.blueyonder.co...rst2%20036.jpg

Their main purpose in life seems to be to support the purlins and
transfer most of the roof load to the central supporting wall of the
property.

Can't really see what is going on with the vertical beams - they may
just be straps holding a tie beam that is there to stop the floor joists
twisting and to support the ceilings a bit.

What sort of tiles are on the roof? (i.e. are they particularly heavy?)

What arr those purlins in cross section? (they look quite skinny)

What are you attempting to do - more storage space, partial loft
conversion etc?



--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

What can I do with this -
 

fred coughed up some electrons that declared:

Ignore the horrible vermiculite or whatever it is (it's coming out), and
the plywood box and flue, which is to do with the blown air heating (it's
coming out). It's those roof 'trusses/beams' which worry me. There are 5
sets of those 'supports' at about 8' intervals. How do I remove at least a
couple of them without the roof collapsing?

http://www.cutlerr.pwp.blueyonder.co...rst2%20036.jpg

They can be dealt without too much difficulty having seen a couple of dormer
conversions. But I would advise having a suitably competent person do the
design.

In my bungalow, they are replaced with verticals and those transfer their
load to either the new reinforced floor joists or in some cases, the old
2x4" ceiling joists. This is an old conversion (mid 70's) and should not be
taken as being indicative of good practise today. Having said that,
nothing's bending or falling down. Furthermore, a lot of the old roof is
missing due to the size of the two dormers so there's less load anyway. The
dormer roofs transfer their weight via the end walls directly onto the new
8x2" floor joists within 18" of the house walls, so they are pretty solid.

A mate's whose loft was dealt with (single dormer, 3/4 house depth) a couple
of months ago had a number of steels inserted.

You would be best off with a suitably qualified engineer or architect IMO.

Cheers

Tim

What can I do with this -
 

In article ,
Tim S wrote:
A mate's whose loft was dealt with (single dormer, 3/4 house depth) a
couple of months ago had a number of steels inserted.

You would be best off with a suitably qualified engineer or architect
IMO.

Yes. A structural engineer is what you need - and they are remarkably good
value.

--
*If you can't see my mirrors, I'm doing my hair*

Dave Plowman London SW
To e-mail, change noise into sound.

What can I do with this -
 

"John Rumm" wrote in message
et...
fred wrote:

out). It's those roof 'trusses/beams' which worry me. There are 5 sets of
those 'supports' at about 8' intervals. How do I remove at least a couple
of them without the roof collapsing?

http://www.cutlerr.pwp.blueyonder.co...rst2%20036.jpg

Their main purpose in life seems to be to support the purlins and transfer
most of the roof load to the central supporting wall of the property.

Can't really see what is going on with the vertical beams - they may just
be straps holding a tie beam that is there to stop the floor joists
twisting and to support the ceilings a bit.

What sort of tiles are on the roof? (i.e. are they particularly heavy?)
They look pretty heavy.

What arr those purlins in cross section? (they look quite skinny)
Don't know offhand, but yea, skinny.


What are you attempting to do - more storage space, partial loft
conversion etc?
Storage.

What can I do with this -
 

Cheers folks, i'll get a structural engineer.

What can I do with this -
 

"fred" wrote in message
...
Cheers folks, i'll get a structural engineer.

Seems a lot of expense just for storage.Couldn't you floor it and just store
round about?

Steven.

What can I do with this -
 

fred wrote:

What sort of tiles are on the roof? (i.e. are they particularly heavy?)
They look pretty heavy.
What arr those purlins in cross section? (they look quite skinny)
Don't know offhand, but yea, skinny.


Beefing up the purlins would let you lose some of the diagonal struts
that are supporting the purlins. I can't quite see on the photo, but I
trust the purlins are supported on the end gable wall as well (if not
that is something else that could be done)

What are you attempting to do - more storage space, partial loft
conversion etc?
Storage.

Do the struts make that much difference then?

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

What can I do with this -
 

Tim S wrote:
fred coughed up some electrons that declared:

Ignore the horrible vermiculite or whatever it is (it's coming out), and
the plywood box and flue, which is to do with the blown air heating (it's
coming out). It's those roof 'trusses/beams' which worry me. There are 5
sets of those 'supports' at about 8' intervals. How do I remove at least a
couple of them without the roof collapsing?

http://www.cutlerr.pwp.blueyonder.co...rst2%20036.jpg

They can be dealt without too much difficulty having seen a couple of dormer
conversions. But I would advise having a suitably competent person do the
design.

In my bungalow, they are replaced with verticals and those transfer their
load to either the new reinforced floor joists or in some cases, the old

That was the reason for my question about if it was ultimately going to
be a loft conversion. If you were going that route, then you would be
able to design a floor that would be able to carry the roof load as
well, by sticking dwarf walls where the purlins currently are. However
without the strengthened floor it is much more difficult.



--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

What can I do with this -
 

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "fred" saying something
like:

Cheers folks, i'll get a structural engineer.

Bear in mind the cumulative weight of all the dope plants.
--
Dave
GS850x2 XS650 SE6a

"It's a moron working with power tools.
How much more suspenseful can you get?"
- House

What can I do with this -
 

"Grimly Curmudgeon" wrote in message
...
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "fred" saying something
like:

Cheers folks, i'll get a structural engineer.

Bear in mind the cumulative weight of all the dope plants.
--
Dave
GS850x2 XS650 SE6a

LOL, it's the cumulative weight of 18mm chipboard that worries me. About 15
sheets of 8' x 4'.
The joists are only about 3" x 2"

What can I do with this -
 

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "fred" saying something
like:

LOL, it's the cumulative weight of 18mm chipboard that worries me. About 15
sheets of 8' x 4'.
The joists are only about 3" x 2"

Pretty skinny. I think I'd look at beefing them up a bit, but see what a
pro says.
--
Dave
GS850x2 XS650 SE6a

"It's a moron working with power tools.
How much more suspenseful can you get?"
- House

What can I do with this -
 

fred wrote:

"Grimly Curmudgeon" wrote in message
...

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "fred" saying something
like:


Cheers folks, i'll get a structural engineer.

Bear in mind the cumulative weight of all the dope plants.
--
Dave
GS850x2 XS650 SE6a


LOL, it's the cumulative weight of 18mm chipboard that worries me. About 15
sheets of 8' x 4'.
The joists are only about 3" x 2"

What I did with my loft that has a very similar joists was dump the
chipboard and put some floor boards down, spaced out so that you don't
end up falling between them. Floorboards are far lighter than chipboard
and because you space them out, they are lighter still.

What can I do with this -
 

"Dave" wrote in message
...
fred wrote:

"Grimly Curmudgeon" wrote in message
...

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "fred" saying something
like:


Cheers folks, i'll get a structural engineer.

Bear in mind the cumulative weight of all the dope plants.
--
Dave
GS850x2 XS650 SE6a


LOL, it's the cumulative weight of 18mm chipboard that worries me. About
15 sheets of 8' x 4'.
The joists are only about 3" x 2"

What I did with my loft that has a very similar joists was dump the
chipboard and put some floor boards down, spaced out so that you don't end
up falling between them. Floorboards are far lighter than chipboard and
because you space them out, they are lighter still.

That's certainly an idea, Dave. Do you know how much lighter they actually
are?

What can I do with this -
 

fred wrote:

"Dave" wrote in message
...

fred wrote:


"Grimly Curmudgeon" wrote in message
.. .


We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "fred" saying something
like:



Cheers folks, i'll get a structural engineer.

Bear in mind the cumulative weight of all the dope plants.
--
Dave
GS850x2 XS650 SE6a


LOL, it's the cumulative weight of 18mm chipboard that worries me. About
15 sheets of 8' x 4'.
The joists are only about 3" x 2"

What I did with my loft that has a very similar joists was dump the
chipboard and put some floor boards down, spaced out so that you don't end
up falling between them. Floorboards are far lighter than chipboard and
because you space them out, they are lighter still.


That's certainly an idea, Dave. Do you know how much lighter they actually
are?

Regrettably no, but try picking up an 8 x 4 piece of chip board and then
a bundle of floor boards that will span 4 foot, even if they are longer.
Anyone else on here that can be more definitive?

Dave

What can I do with this -
 

Dave wrote:

That's certainly an idea, Dave. Do you know how much lighter they
actually are?

Regrettably no, but try picking up an 8 x 4 piece of chip board and then
a bundle of floor boards that will span 4 foot, even if they are longer.
Anyone else on here that can be more definitive?

From memory the density of chipboard is about 680 kg/m^3 whereas spruce
is about 600 kg/m^3.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

What can I do with this -
 

"John Rumm" wrote in message
...
Dave wrote:

That's certainly an idea, Dave. Do you know how much lighter they
actually are?

Regrettably no, but try picking up an 8 x 4 piece of chip board and then
a bundle of floor boards that will span 4 foot, even if they are longer.
Anyone else on here that can be more definitive?

From memory the density of chipboard is about 680 kg/m^3 whereas spruce is
about 600 kg/m^3.

Gordon Bennet, my sums must be wrong, that works out at around half a ton.
Sounds like a re-think.
Cheers.

What can I do with this -
 

"fred" wrote in message
...

"John Rumm" wrote in message
...
Dave wrote:

That's certainly an idea, Dave. Do you know how much lighter they
actually are?

Regrettably no, but try picking up an 8 x 4 piece of chip board and then
a bundle of floor boards that will span 4 foot, even if they are longer.
Anyone else on here that can be more definitive?

From memory the density of chipboard is about 680 kg/m^3 whereas spruce
is about 600 kg/m^3.

Gordon Bennet, my sums must be wrong, that works out at around half a ton.
Sounds like a re-think.

Exactly the figures I see. Most people "remember" chipboard in terms of
worksurfaces for kitchens, which are very thick and heavy. There isn't that
much difference in the density in reality. Floorboards can work thinner than
you would with chipboard though, so one might save a bit there.


--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not