Dobbie

I bought this https://cpc.farnell.com/duratool/d03295/hot-knife-tool/dp/TL19867?mckv=s_dm|pcrid|426684131426|kword||match||plid||slid||product|TL19867|pgrid|100371162878|ptaid|pla-1683489497252|&CMP=KNC-GUK-CPC-SHOPPING-9262013734-100371162878-TL19867&s_kwcid=AL!5616!3!426684131426!!!network}!1683489497252!&gad_source=1&gclid=CjwKCAjwl4yyBhAgEiwADSEjeFWpH-kon--c8i6_61chlanY4IQ_VWVKiD66TPUyrnmPQPHCyOnrjRoC-lAQAvD_BwE And then bent the 'knife' to the correct shape to chase a channel into the ICF. Cheap and cheerful, but it worked well.

Hi - I'm looking to fit mineral wool or similar between pitched rafters. Is there any reason I can't use Knauf Loft roll instead of frametherm (ignoring u-values)? Will have vcl, 40mm Kingspan and then plasterboard below. Thanks!