Cavity Wall Foam Insulation Problems

Find out if your home s likely to be affected.

Cavity wall foam insulation problems.

Wall tie corrosion this is where the wall tie which holds the two leafs of the wall together corrodes. Cavity wall insulation can cause damp. For those who have experienced problems with a poor installer or cavity wall insulation being installed in an area it shouldn t have been we can remove the affected insulation cleanly and quickly. Until recently dampness problems caused by cavity wall insulation have not generally occured in houses where the insulation was built in from new although this is now changing and the first acounts of dampness caused by built in cavity batts are starting to come in.

Cavity wall insulation removal. Bre warns of the problems installing cavity wall insulation in zone 4 because of the increased risk of rain penetration if a cavity is fully filled with insulation. When retrofit cavity wall insulation is installed into a property that is located or built in a way that means it should not have the cavities filled or if the work is undertaken incorrectly the first and most obvious sign of a problem is almost always internal dampness. Spray foam insulation this is a newer method which is sometimes used for retrofitting cavities but historically they.

Eps expanded polystyrene beads and polyurethane foam are the most commonly used these days and with good reason. The cavity wall insulation and stabilisation system is an injected polyurethane foam product. Experts now claim that while the cavity wall insulation was incorrectly fitted in some cases it was unsuitable in other properties and should never have been offered at all. Foam bead and fibre.

If you re installing cavity wall insulation it s worth opting for a modern insulating material with proven performance. 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. Problems with cavity wall insulation part 2 before i get into part 2 of the problems with cavity wall insulation if you haven t read the first part of this article you can read part 1 here which covers damp penetration into cavities and how this affects different types of insulation. Its closed cell properties mean that it is suitable for many different types of domestic and commercial properties including some previously thought to be unsuitable for cavity wall insulation.

Similarly if your cavity walls were wrongly insulated this could cause you problems down the line. In 2015 thermal imaging company irt surveyed 250 000 properties with cavity wall insulation and found problems in half the homes.