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Table 2 Different membrane materials tested at ISAC-CNR with results for light transmission and reflectance (unpublished report: Mandrioli et al. (see footnote 7))

From: Sheltering archaeological sites in Malta: lessons learnt

Material Surface coating Light transmission %a Light reflection %a
Duraskin B18089
PTFE 12 60
Flutop T2 1302
PVC/PVDF 10 70
Duraskin B18059
PTFE 8 60
  1. aAt 550 nm