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Table 4 Condensation for various extreme conditions of T and RH at room, canvas, cotton and aluminium in Case 2

From: RH simulation model for canvas paintings protected by an aluminium backplate and an additional hygroscopic layer

RH start Location Temp. average ∆T ±  RH max Temp. average ∆T ±  RH max Temp. average ∆T ±  RH max Temp. average ∆T ±  RH max
% °C K % °C K % °C K % °C K %
52 Room 20 1 56 15 1 56 28 1 56 22 1 56
58.2 Canvas 19 2 66 14 2 65 26 2 66 20 2 65
  Cotton 13 3.5 88 13 3.5 63 19 3.5 92 15 3.5 82
  Alum 12 4 97 12 4 70 18 4 100 14 4 90
60 Room 20 1 64 15 1 64 28 1 65 22 1 64
50 Canvas 19 2 57 14 2 56 26 2 57 20 2 56
  Cotton 13 3.5 75 13 3.5 55 19 3.5 79 15 3.5 71
  Alum 12 4 83 12 4 61 18 4 87 14 4 78
70 Room 20 1 75 15 1 75 28 1 75 22 1 75
30 Canvas 19 2 36 14 2 35 26 2 36 20 2 36
  Cotton 13 3.5 48 13 3.5 34 19 3.5 52 15 3.5 46
  Alum 12 4 53 12 4 38 18 4 57 14 4 50
30 Room 20 1 32 15 1 32 28 1 33 22 1 32
70 Canvas 19 2 76 14 2 78 26 2 73 20 2 79
  Cotton 13 3.5 100 13 3.5 76 19 3.5 100 15 3.5 99
  Alum 12 4 100 12 4 84 18 4 100 14 4 100
70 Room 20 1 75 15 1 75 28 1 75 10 1 75
60 Canvas 19 2 68 14 2 67 26 2 69 8 2 64
  Cotton 13 3.5 91 13 3.5 65 19 3.5 95 3 2.5 88
  Alum 12 4 100 12 4 72 18 4 100 1 3 100
30 Room 20 1 32 15 1 32 10 1 32 5 1 32
30 Canvas 19 2 34 14 2 34 8 2 32 4 2 32
  Cotton 13 3.5 45 13 3.5 33 2 2.5 47 0 2.5 34
  Alum 12 4 50 12 4 36 0 3 58 − 2 3 52
  1. ∆T indicates the amplitude of the T fluctuations