Foam Cavity Wall Insulation Problems

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.

Foam cavity wall insulation problems.

Some spray foam insulation sets rigid and can also be used to help reinforce roofs that are suffering from nail fatigue when the nails used to hold slates in place rust or support cavity walls where the wall ties are failing causing cracks and bulges in walls. With around a third of the heat you pay for being wasted you can save money with cavity wall insulation a lot sooner. Discover how expanding foam insulation for cavity walls works how it s installed and how to avoid problems with cavity wall insulation. Similarly if your cavity walls were wrongly insulated this could cause you problems down the line.

Eps expanded polystyrene beads and polyurethane foam are the most commonly used these days and with good reason. If you re installing cavity wall insulation it s worth opting for a modern insulating material with proven performance. Spray foam insulation is a great product. I ve been in plenty of these homes and can tell you that when spray foam is installed properly they outperform 99 of fiberglass batt insulated stick built homes.

I can also tell you that 73 of all statistics are made up on the spot so please don t ask for. Damp problems caused by cavity wall 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. Cavity wall insulation can cause damp.

Homes insulated with it can be some of the most efficient and comfortable homes built. Foam cavity wall insulation from specialists with over 25 years experience. 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. 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.

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.