Hi there
Having my loft converted and 4 new dormers put in.
The architcet notes on the loft flooring includes teh following
" 150mm rockwool insulation between joists on chicken wire stapled to joists. 12mm fireline board and skim to first floor ceiling fixed to new floor joists."
Now the builder has put the new joists( 8 in) above the existing (4in) which is OK by me.
But while there was shed loads of insulation up there , he threw roughly half of the insulation down the side of the house ( its still sat there getting wet !) ( presumably to improve accessibililty for the steels , new joists etc , but he started putting the floor down yesterday and just put them on top of the new joist with no further insulation added - all that was left after what was thrown out was about 100mm ( ie about height of existing
joists ) , I have seen no chicken wire ( not that I am quite sure what that does ) and am sure he does not intend to put fireline board up.
I left a note with my concerns this morning ( when about half teh floor was done ) , telling him to ring me , and my wife said I was unhappy about it. But we went to work , no calls and now pretty much the whole floor boarded - he has bought just one roll of 100mm insulation - which would only cover the area that had no coverage at all before - and just puffed up / put more in round the edges where it can still be seen.
Don't want to fall out with him , but want the loft OK , the rooms downstairs warm without big bills , and to be OK from a fire perspective.
so do I
1) Do nothing - 100mm is OK - , but insist the roof insulation is definitely the same as ( or better ) than the architect notes ( this is Kingspan which I believe is expensive)
2) Get him to rip up the boards he has put down , put in more rockwool and chicken wire ( What does chicken wire do in theses circumstances - is it just to hold the insulation in place in case of fire ? ) and reboard ?
3) If he does 2) , can he use the insulation that is outside and will no doubt be soaking ( can it be brought in to dry out ?)
4) is the fireline board an essential thing that needs to be done or just a nice extra that the architect has put in for good measure - and is there an alternative fire measure ?
Any suggestions / alternatives gatefully appreciated !
Having my loft converted and 4 new dormers put in.
The architcet notes on the loft flooring includes teh following
" 150mm rockwool insulation between joists on chicken wire stapled to joists. 12mm fireline board and skim to first floor ceiling fixed to new floor joists."
Now the builder has put the new joists( 8 in) above the existing (4in) which is OK by me.
But while there was shed loads of insulation up there , he threw roughly half of the insulation down the side of the house ( its still sat there getting wet !) ( presumably to improve accessibililty for the steels , new joists etc , but he started putting the floor down yesterday and just put them on top of the new joist with no further insulation added - all that was left after what was thrown out was about 100mm ( ie about height of existing
joists ) , I have seen no chicken wire ( not that I am quite sure what that does ) and am sure he does not intend to put fireline board up.
I left a note with my concerns this morning ( when about half teh floor was done ) , telling him to ring me , and my wife said I was unhappy about it. But we went to work , no calls and now pretty much the whole floor boarded - he has bought just one roll of 100mm insulation - which would only cover the area that had no coverage at all before - and just puffed up / put more in round the edges where it can still be seen.
Don't want to fall out with him , but want the loft OK , the rooms downstairs warm without big bills , and to be OK from a fire perspective.
so do I
1) Do nothing - 100mm is OK - , but insist the roof insulation is definitely the same as ( or better ) than the architect notes ( this is Kingspan which I believe is expensive)
2) Get him to rip up the boards he has put down , put in more rockwool and chicken wire ( What does chicken wire do in theses circumstances - is it just to hold the insulation in place in case of fire ? ) and reboard ?
3) If he does 2) , can he use the insulation that is outside and will no doubt be soaking ( can it be brought in to dry out ?)
4) is the fireline board an essential thing that needs to be done or just a nice extra that the architect has put in for good measure - and is there an alternative fire measure ?
Any suggestions / alternatives gatefully appreciated !