David and Margaret Hay, from East Ayrshire, say they are told a home they had valued at around £250,000 is effectively worth nothing because of the type of insulation used in the loft. The issue comes to light after the couple decide to buy a new house. They report that the insulation involves spray foam, which they claim has led to significant problems affecting the property’s value. According to the report, the couple only becomes aware of the concerns after progressing with their house purchase, prompting them to seek further information about what the insulation issue means for the property and its market value. The coverage centers on the alleged impact of spray-foam loft insulation on the home’s condition and valuation, but it does not provide detailed technical findings or the specific basis on which the valuation is assessed. No further outcomes, remediation steps, or formal dispute resolution are described in the provided information. The story highlights how insulation materials in loft spaces can become a major factor during property assessment and buying decisions.