Wondering if anyone has experience of this, the beads in particular. Have read some horror stories online. Thanks
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Wondering if anyone has experience of this, the beads in particular. Have read some horror stories online. Thanks
We had the Rockwool cavity wall insulation done in the 80s. No problems with it.
Cavity’s are there for a reason !
Ditto (the blown-in fibre variety). No problems. Made an immediate impact on heating bill - down about 20%.Quote:
Originally Posted by Paul0453
That's the stuff where they pump it in from the outside? I don't like it. I presume that your property is getting on for 50 years old and therefore was never fitted with a celotex type of insulation board? The reason that i don't like it is because a cavity needs to have air flow. Todays wall cavities are 100mm-That would be 75mm of celotex insulation tight to the internal skin of brickwork with a 25mm void that allows movement of air. When insulation is pumped in then it fills the Cavity and you no longer have that air flow which can lead to the cavity sweating and eventual salting on the internal plasterwork, although you may get lucky and none of this happens. The little balls are designed so that they don't take on moisture. Have a look outside of your house and see if you have cavity vents, usually 120mm from ground level, if you do then the purpose of them is to help your cavity circulate with air which greatly reduces any issues with moisture build up. Personally, i like the idea of my walls being vented and would probably consider a scarfe and jumper in winter as oppossed to the loose fill blocking my cavity. good luck :thumbup:Quote:
Originally Posted by Super Roger Gibbins
Quote:
Originally Posted by Super Roger Gibbins
Don't touch it.
If you want to insulate there are cheaper better ways. Are you dealing with a direct sales outfit ? Don't .
A&M Energy in Cardiff, http://www.am-energy.com/homeowners/...ll-insulation/Quote:
Originally Posted by RonnieBird
Interesting, thanksQuote:
Originally Posted by Tuerto
You obviously know what you're on about so I'll just add a few comments. My house was built in 1973. Between then & when I purchased it in 1992 someone filed it with beads. My house is steel framed (the in thing at the time) and I've been told repeatedly that the beads devalue the house due to their damp tracking properties at low level.Quote:
Originally Posted by Tuerto
Whenever I anything is done to the house, I've had a conservatory added, chimney added, vents cut in, even just drilling a hole in the wall, it looks like it's snowed, it gets everywhere (for weeks / months). I moved in 27 years ago and the beads were level with the top of the cavity (as seen in the attic), now the beads have probably dropped 5 to 6 foot, as they've blown away or settled.
Don't do beads!
That’s because lots of folk don’t brush their teeth properly !Quote:
Originally Posted by BLUETIT
Honestly mate, I don't know much about wall insulation I wouldn't trust RonnieBird's comments about anything, he's a wind up merchant with several usernames on here so be careful.Quote:
Originally Posted by Super Roger Gibbins
My parents had cavity wall insulation retrofitted by the way and it was great with no problems, apart from the fact that are now five spots where the cement between the bricks is a different colour because it's newer which annoys me slightly every time I see it :hehe:
I had bead insulation in my last 1950's house. There was absolutely no problem with it.
You've probably lost the beads due to opening up your walls, it basically pisses out and is almost immpossible to replace. I'm a plasterer and i love passive ventilation even if it is a bit cold, there's nothing better for a house than external airflow as it's dryer and less humid than the air inside our houses due to us just breathing, people having showers and baths, cooking etc, add to that people cluttering up rooms with shit against external walls which allows moist humid air to settle and a lack of flow. I've never heard that the loose fill insulation devalues a house and i know plaenty of people who have had no problems with it, i just don't like air vents (which a cavity is) being blocked up and not doing what they were designed to do, and don't get me started on chimney breast walls that are blocked up and the Chimney capped ith no ventilation going through the stack. I live a very exciting life.....Quote:
Originally Posted by Des Parrot
May i add that i'm not a specialist, i'm a plasterer and the opinions i give are my preference. You will read about the disasters on the net because people wont really write about the success stories.Quote:
Originally Posted by Super Roger Gibbins
There probably aren't cheaper ways than drilling a hole and pumping in a load of beads, the alternatives are very expensive.Quote:
Originally Posted by RonnieBird
You bloody plasterers, changing building regs:hehe: it’s 50mm air flow in cavity work, not 25mm, before insulation came into play wall were 250mm overall, 2 skins of 100mm + 50mm. With the introduction of insulation (at first the shite polystyrene Jablite), the 50mm always has to be maintained, insulation width has increased ridiculously over time ( ask Splott-Light about this), walls are now 325mm overall, 100mm + 100mm for the walls (unless a 140mm inner skin is specified) with 75mm cavity insulation (usually celotex or Kingspan at the moment) + 50mm air flow. The increases in insulation widths has caused havoc with material costs specifically I.G. lintels as their overall width have to be increased each time to take the inner & outer skins resulting in previous stock becoming obsolete, same with cavity closers, wall ties etc. Someone is making a right killing with changing building regs. As regards injected cavity insulation I would tend to avoid it, the installation is very much down to the operative, blank spots will result in cold spots eventually turning your interior walls in those areas a horrible shade of black. If possible perhaps exterior insulation bats could be fixed, with an expanding metal key prior to rendering. I’ve been in the game since 1971 and the emphasis to us during my 4 years at Llandaff Tech was that cavities must be kept clean & clear, our tutors, Howard Phillips & Mike Hart would be horrified at the thought, 40 odd years later, after the introduction of cavity work after years of solid wall structure folk were planning on filling them.Quote:
Originally Posted by Tuerto
I had the blow-in from outside type done about 10 years ago - no problems, just lower heating bills.
Adequate loft insulation is much more important, though.
50mm air flow now? more like a cave than a cavity. I hate those cavity closers, when they first came out the manufacturers were saying that you could render straight on them, yeah, right! got to dry line the reveals, can't rough them. As for the rest of your post-You deserve everything you get because you decided to do a job in a country where it pisses down for 6 moths of the year, although you boys make all the money so you can probably afford six months off :thumbup:Quote:
Originally Posted by splott parker
We also had Rockwool blown in early 1980's never any problem and SO much warmer.
Seems like there aren’t any seasons now, just as likely to piss down in August as in February. About time we made a few bob in the building trade, we’ve been underpaid and shat on for years. Cavity closers have helped us no end, no cutting returns with vertical dpc any more. 6 months off !!!!! No chance, it’s perfect for decent tradesmen at the moment, glut of work & lack of labour, rather than the other way around.Quote:
Originally Posted by Tuerto
Yup, plenty of work about. Doing local authority stuff at the moment, piece of piss although the standard is poor.Quote:
Originally Posted by splott parker