Threats to the preservation of the viceroyal church facades of Juli, Peru

Figures & data

Fig. 1 Viceroyal churches in Juli, Perú.

Fig. 2 Flow chart of the methodology phases in the study.

Fig. 3 Location map of the province of Juli in Chucuito with the location of the viceroyal churches. Source: Municipalidad de Juli, 2016.

Fig. 4 Photographic set-up for the recognition of style elements in the analysed facades, drawings using CAD.

Fig. 5 Church location in context. Overview of the results obtained through the application of the anthropic risk and value perception of the viceroyal churches survey.

Fig. 6 Risk determination map through the intersection between natural threats and physical vulnerability.

Fig. 7 Detailed damage map and damage identification.

Table 1 Quantification of the main damage pathologies affecting the selected viceroyal church facades.

Hazard group	Pathology	Analysed facades
		Church San Pedro 410 m2 = 100%		Church San Juan 340 m2 = 100%		Church Asunción 490 m2 = 100%		Church Santa Cruz 360 m2 = 100%
		m2	%	m2	%	m2	%	m2	%
Environmental damage	Loss of facing	10.77	2.63%	32.36	9.52%	7.95	1.62%	0.00	0%
	Surface erosion	4.05	0.99%	2.89	0.85%	18.50	3.78%	64.32	17.87%
	Dirt	31.48	7.68%	24.23	7.13%	5.03	1.03%	1.48	0.41%
	Humidity due	4.77	1.16%	8.10	2.38%	0.57	0.12%	2.47	0.69%
	Loss of cladding	0.00	0.00%	10.67	3.14%	1.78	0.36%	17.87	4.96%
	Volumetric loss	0.00	0.00%	4.67	1.37%	19.1	3.90%	8.48	2.36%
	Roof loss	0.00	0.00%	0.00	0.00%	0.00	0.00%	3.34	0.93%
	Deformation	0.00	0.00%	0.85	0.25%	2.35	0.48%	15.73	4.37%
	Alveolisation	17.79	4.34%	2.89	0.85%	44.1	9.00%	4.49	1.25%
	Crack and fissures	3.16	0.77%	0.00	0.00%	0.00	0.00%	0.63	0.18%
Damage caused by organic agents	Birds dirty	8.10	1.98%	3.14	0.92%	0.45	0.09%	1.25	0.35%
	Biological colourisation	0.85	0.21%	20.36	5.99%	1.39	0.28%	1.67	0.46%
	Vegetation	2.09	0.51%	8.67	2.55%	0.43	0.08%	26.34	7.32%
	Discolouring	2.02	0.49%	8.10	2.38%	9.36	1.91%	4.56	1.27%
	Pigmented spot	26.36	6.43%	26.45	7.78%	1.95	0.40%	13.27	3.69%
	White rot	4.05	0.99%	2.09	0.61%	0.00	0.00%	0.00	0.00%
Human damage	Incompatible material	20.16	4.92%	14.92	4.39%	0.16	0.03%	3.32	0.92%
	Painting	1.68	0.41%	2.30	0.68%	47.78	9.75%	0.00	0%
Damage of chemical origin	Efflorescence	1.92	0.47%	4.12	1.21%	4.25	0.87%	77.59	21.55%
	Chromatic change	4.57	1.11%	3.90	1.15%	5.84	1.19%	22.48	6.24%

Fig. 8 Infrared and luminance filtering of the church facades for thermal analysis and degradation mapping.