Hi Folks. New member here looking for some advice. I am looking to floor the loft area of a house we recently bought. I believe it was built about 1935. The original (I think) insulation is still in between the rafters (image attached). But up one end there is a collection of fluffy stuff. Similar in golden colour. Has it been anything to do with old chimney stack and pipe that was there (now removed) or is it possibly old cavity insulation. Looking to know if its OK to handle and remove it from the loft area to fix chipboard flooring to the joists. One of the images is without camera flash .... hence the different colour appearance. Thank You for the guidance.