Insulating pipes in wall

[AWheating]

if you stick to building regs then you can chase 1/3 of brick thickness. with load bearing walls you have a higher chance of cracks and movement due to the load especially if its the old black breeze (stuff from power station waste used in seventys) . you would not get away with anything deeper than 1/3 and 1/6 Horizontal if nhbc/buildings inspector is any good, but alot are not! LOL

i guess you have to use your own judgement, from job to job.

 

[duffsparky]

If the walls load bearing you do not want to take too much out of it, whatever lagging you use still tape the pipe with insulation tape before you lagg it.

Also consider that when plastering up loose/soft lagging it will increase the chance of loose/poor plastering moving and cracking.

Not arguing but why tape the pipes if they are lagged?

The chases are already done and I've cocked up there coz I've gone too deep, but I've been advise to make good with drywall adhesive and if necessary fix some expanded metal to the sides. Apparently the drywall adhesive sticks like ????, goes well hard, very tough and you can get a good finish on it.

 

[AWheating]

although copper generally has a high resistance to corrosion with many building materials its always better to protect it from the chance of corrosion, it does get corroded well by some older breeze blocks for example, especially in damp conditions.
to protect the copper from corrosion it would be safer to cover the actual pipework with tape, there will then be no chance of contact with anything. Air felt lagging wont do a very good job and foam lagging has openings and joints.

For something thats will cost a few pence and only take 1/2 min i cant see a reason not to do it?

you are correct, board adhesive is very good, it what i use to cover over chased in gas pipes.

 

[kay-jay]

Belive me ive done it thousands of times and no wall ever fell down

ever ended up next door? :biggrin:

 

[kay-jay]

Belive me ive done it thousands of times and no wall ever fell down

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ever ended up next door?&nbsp;<img src="http://www.ukplumbersforums.co.uk/images/smilies/biggrin.gif" border="0" alt="" title="Biggrin" smilieid="104" class="inlineimg">

 

[Gray0689]

Not yet lol