Mineral fibre this is the same yellowish brown wool like insulation that is typically used in lofts as can be seen above.
Polystyrene bead cavity wall insulation problems.
Imagine your wall cavity filled with a sponge.
If you re installing cavity wall insulation it s worth opting for a modern insulating material with proven performance.
Now if you were to pour a jug of water in at the top of the cavity it will get soaked up by the insulation as it acts just like a sponge which holds the moisture against the walls of the cavity.
The polystyrene used for cwi is in the form of virgin pre formed bead which is usually combined with a.
Polystyrene beads are full of static electricity and they.
This is due to the capillary action of the bead allowing gravity to draw any moisture present down the inner surface of the outer leaf to drain away at foundation level.
There was an acknowledged problem with one particular brand of bonded polystyrene bead insulation widely used in the 1980s which was put down to poor site supervision of the process the adhesive has to be mixed with the poly beads immediately before they are injected into the wall and this is said to have now been rectified.
The cavity is there to reduce the risk of.
A popular method of insulating new build cavity walls is to fill the gap in between the two leaves either by pumping them with eps beads or by adding rigid board insulation.
In ni and roi partial fill cavity wall insulation is widely considered to be the most traditional wall construction build up.
Cavity wall insulation beads will not allow dampness or moisture to penetrate the cavity in a properly constructed wall.
The problem with this method is the installation.
When we went undercover to investigate the quality of insulation suitability inspections in 2011 our findings suggested that you can t always rely on assessors to carry out thorough inspections or warn of potential damp problems even those from big brands such as marks spencer npower and tesco.
If the puffed beads fill the cavity the space can obtain r values close to that of fiberglass insulation.
Problems are therefore extremely rare but if they do occur ciga has the expertise to ensure that they are swiftly rectified.
The next of the cavity wall insulation problems i m going to cover is.
Similarly if your cavity walls were wrongly insulated this could cause you problems down the line.
Find out if your home s likely to be affected.
Independent research has confirmed that cavity wall insulation is a very reliable process.
In this application the puffed beads are poured into the wall cavity between the studs by drilling a hole in the top of the wall.
