I don’t think it gets its fire resistance by things sprayed on. https://www.greenspec.co.uk/building-design/crosslam-timber-fire-resistance-and-rating/ https:/

I don’t think it gets its fire resistance by things sprayed on. https://www.greenspec.co.uk/building-design/crosslam-timber-fire-resistance-and-rating/ https://www.greenspec.co.uk/building-design/crosslam-timber-...