Householders are angered by the discovery they cannot remortgage or sell their homes after installing spray-foam insulation to cut energy use.
Householders are angered by the discovery they cannot remortgage or sell their homes after installing spray-foam insulation to cut energy use.
Can someone explain why spray foam seems to be the go-to for US construction? Is it different types of wood/treated vs untreated?
“At the root of the problem are cowboy traders (unlicensed tradesman/contractor) who apply the foam without a full survey or appropriate expertise – but because of lenders’ caution, this is affecting other homeowners who had similar work.” also “because surveyors are unable to inspect the roof timbers behind the layers [for moisture], mortgage lenders tend to issue blanket refusals on properties where any foam is present.” Maybe in the U.S. we just use wood moisture meters to check for moisture?
The problem with this style of foam application, is that you cannot get to the wood to check the moisture content, without ripping down the foam (or probing through it, exacerbating any problem).
So there isn’t a way to test. And as there have been problems, the lenders won’t take the risk on any more.
I was thinking the meters with the metal probes that go through yeah. Wasn’t aware that could exacerbate the issue.
Sounds like the foam is the issue, which may be down to the shade tree handy man they hired being unlicensed or uninsured to perform insulating. If a person isn’t a dedicated HVAC worker who has day-to-day experience with insulation types and how to properly apply them, then the work may be causing more harm than good.
If the insurance and mortgage companies have a list of guidelines needed for insulation installation, it makes sense that folks need to follow them to continue using their services. Spraying any old foam into nooks and crannies is a fine way of hiding problems.
My impression is that homes in the US tend to have more wood involved in their construction generally, so it seems plausible to me that US construction methods may be more experienced with ways of managing wood moisture