To achieve the various targets, the FAICH has developed a sustainable intervention model 'particularly suited to the analysis, which consists of three basic stages, each of which is conducted by a multidisciplinary group of expert professionals in the field, which in addition to providing an immediate solution to the problem of deterioration of the temples involved in the restoration, it creates an awareness and appreciation of heritage chilote by the community, promoting the creation of systems that generate resources financial and human resources to develop the necessary maintenances. The three stages involved in this methodology are:

• PIP Intervention Project Equity:

The PIP is an "instrument of restoration and conservation" FAICH driven through
which is made a thorough study and intervention project for repair
architectural heritage of Chiloé, which involves the basis of an audit report, field surveys of the current situation of the building, also developed the architecture and structure projects with their technical specifications, reports and calculation model of the building stands. In addition, all research and analysis of current conditions of the monument must be supported by studies demonstrating the
interventions to be undertaken, within which are the study of soil mechanics, topographic mapping and geo-positioning and satellite studies of risk and the pathology report. All this culminates in a document that expresses itself through the mass of data collected and processed, a proposal for restoration with some concepts or heritage restoration criteria to be used, which are submitted to the Council on Monuments
National for approval.

• Critical Survey:

This refers to the architectural plans, structure, construction details and ornaments, taken in situ, allowing to account for the current condition in which the monument. In each of the planes are identified sections of the various components forming part of the structure and architecture of the monument, materiality, distortions, desaplomes, levels and any other particularity of the building.
The field survey process is supervised and directed by the architect responsible, but also is of fundamental importance to the presence of the architect calculator, who must evaluate and monitor the removal from the structural viewpoint.
It also includes a team of skilled carpenters, who helps uncover tasks, disarmament and subsequent return of the items removed. These actions are performed with special care not to disturb the integrity and presentation of the church, even more, considering that you are working in temples that are in constant use by local communities, so that these activities are conducted under the supervision of the architect responsible.

• Survey Photographic and Digital Video:

Corresponds to the generation of a comprehensive and detailed visual record of the various parts of the church, from the general to the most particular and specific. This also associates the images with the plans developed the Critical Survey, clearly identifying the items displayed.

• Proposal of Intervention:

According to the diagnosis and the results of the survey and critical under criteria established heritage restoration in the explanatory memorandum, it is proposed to carry out the intervention for each monument.
The proposed interventions are summarized in an architectural project, which is indicated in detail in a comprehensive report planimetric, all of which are procedures, areas to intervene, specifications and materials used. Indicating color change all the parts and areas that will be operated according to the criteria of intervention undertaken. Within this item is included plans to support the proposals on the Application of color and lighting, as appropriate, using techniques that best represent the proposal developed.
It also is also developing a draft structure, which is made according to the plans resulting from the Critical Survey of the field evaluation conducted at the Church of the results of soil mechanics and criteria developed equity intervention by the foundation along its path.
The project is backed by rigorous structural bases of calculation and static and dynamic analysis. Even if the rule NCh 1198 of 2006, is insufficient, they consult other references to conform to the case.

• Technical Specifications:

It is for the complete development of all necessary items and designed in the intervention project (architecture and structure). These should include processes and procedures for dismantling, disarmament and replacement of items in poor condition, detailing each of the items to make: general description, technical standards (applicable, assay and testing), concordances, materials, manufacturing processes ( before, during and after implementation), qualification of the workforce, among others. It is worth mentioning that the development of these requirements, it is considered only the local situation in order to propose viable alternatives and not create conditions impossible to meet.

Among the many themes developed in this paper are among others, a summary of the proposed intervention, temporary works (temporary lockouts, temporary buildings, slaughter facilities), the identification and classification of the pieces to remove, specification maneuvers to make as areas of intervention, treatment and protection of wood, etc.

• Structural Calculation Report:

This document clearly indicates the actions that impact on the building, the maximum rates and / or minimum used in the determination of stress and any other relevant for understanding the structural model of the building, clearly indicating the origin and the units used.
In general, it makes a complete and detailed description of the structural model, explains the formulas used, stresses, strains and geometric properties involved (area, moment of inertia, section modulus, radius of gyration, etc.).. The voltages used are those contained in the 1198 NCh OF 2006.
Also, in these conditions shows the detail of the static and the overload of use considered, as well as the calculation of wind and earthquake loads for each of the component parts of the heritage building.
It is also considered the implementation of a simplified computer model of the structure, providing for different variables, to give consistency to the study.
In order to obtain an easy understanding of the arguments, is very important graphic supplementation either schemes or models to account easily, which elements are being measured and how they are performing these calculations.

• Model Building fixtures:

In the process of restoration carried out by FAICH, also provides for the realization of a model, scale 1 / 25 for most cases, or another scale that is determined according to the dimensions of the building. The main characteristics of this prototype is to be divided longitudinally showing a double instance of the heritage building as shown on the one hand architecture with interior finishes, exterior, ornaments, doors, windows and walls to scale, with its own colors . While the other half, will account for the structural model (model fixture), devoid of the lining of the church, showing the structure of the buildings and tower of the church facade, the type of joints used, sections, parts and morphology all the different elements that compose it. One of the main reasons for the development of this model is to be present on site during the construction process, including reference materials and additional discussion.

• Soil Mechanics Study:

To carry out this work, the Foundation solicits the services of an accredited and recognized, certifying the studies commissioned. The practitioner responsible for signing the reports, should be a civil engineer specializing in soil mechanics.
Among the various aspects that are requested in the report is: a stratigraphy with a description of each stratum (minimum three), according to NCH 165 sieve analysis, consistency limits (liquid, plastic and plasticity index), Type Rating, densities Minimum and Neta, Relationship Moisture - Density (Modified Proctor) maximum density compacted - Humidity optimum allowable capacity for the soil analyzed, including static and dynamic conditions for the layers described, Earthquake classification, indicating the type of soil, area, according to Of 433 NCH. 96 (Statement of seismic design), indicate the level of the groundwater.

• Associated Risk Study:

It represents a report on the dangers and cares that the church has to be taken into account when developing restoration projects, which record shall be reflected on the one hand, the external conditions of the building, as site characteristics, architectural and structural situation, adjacent buildings, townhouses, vegetation conditions and ventilation of the church, apartments, tower, accessibility for fire and water sources. On the other hand, the inner conditions that owns the monument, in its main rooms and outbuildings, attic, altars, etc. Also in this report are electrical conditions, such as pipes, taps, lighting equipment and systems, switches, plugs, panels and operating conditions.
As a complement to the report of associated risk, there is a digital video (Hi 8 - Mini DV - DVD) 30 to 45 minutes of film, recording in which are embodied all the features mentioned above, from the overview to the detail itself. This record is accompanied by the appropriate technical account of what is being displayed.

• Biotic Pathology Report Timber:

The purpose of a pathology report is to define, according to the causative agents, the levels of deterioration in these wooden structures, in order to establish criteria for future intervention in the various sectors of the building and also to assess damage degraders by different agents and the state of the elements and the wooden structure to define the action plan, which may include constructive measures, structural and chemical treatments.
In general, the best thing is to do a general inspection phase to meet the building and carry out an external visual, marking the points where tastings are conducted to inspect hidden areas of the wood. In a second phase will be inspected for scoring open tasting the pathology found and their characteristics.
Before making an inspection is necessary to have information about the history of the building.

• Pathological Analysis in Wood Structures:

We know that wood is a perishable material that can be totally destroyed by different biotic or abiotic agents, so it is clear the importance of pathological analysis and protection methods intended to extend their best condition.
The purpose of a pathology report is to define, according to causal agents
levels of deterioration in the Churches of Chiloé, in order to establish criteria
future intervention in the various sectors of the structure.
It is a very detailed process which evaluates the damage caused by the various degrading agents, the state of the elements and the wooden structure to define the action plan, which may include constructive measures, structural and chemical treatments.

• Analysis Methodology

The aim is to collect information about diseases that presents the church to prepare a report and action plan. In general, the best thing is to do a general inspection phase to meet the building and carry out an external visual, marking the points where tastings are conducted to inspect hidden areas of the wood. In a second phase will be inspected for scoring open tasting the pathology found and their characteristics. Before making an inspection is necessary to have information about the history of the building.

The inspection includes the following: Visual Recognition Its main objective is to detect sources of moisture and the potential entry of rainwater into the building. At this stage include the display of facades, roof, roof and ceiling, interior walls, eaves and downspouts, among others.

Recognition of Structure Your goal is to assess the damage caused by agents or structural xylophagous to assess their impact on the integral behavior of the structure of the building, recognition may also include identification of wood species, determining quality and geometry of the structure in order to check their load capacity.

Damage Identification Techniques for the detection of damage in the wood, is typically done visually, where you can see varying degrees of deterioration such as rot, by the presence of fungi, some kind of xylophagous by exit holes of insects, cracks, etc.., which are complemented with other simple systems are minimally destructive as percussion or puncture. There are also other non-destructive methods, supported by more sophisticated technologies that use special equipment such as systems based on the transmission of ultrasonic nondestructive mechanical tests, vibration analysis and resistógrafos. Once identified the damage and level of deterioration that is determined by this analysis, define first curative treatment, which stops the action of the agents of deterioration, then and in addition carry out preventive treatment with which is protected from further attacks.

Wood pathologies of various diseases that can be found in the woods so dependent on external factors such as environmental conditions in which this fits, the presence of biotic agents xylophagous, etc., As well as internal factors characteristic of their own constitution. The following explains the types of diseases affecting the wood.

1.-biotic Pathology: For its organic status, the wood is exposed to attack by living organisms, be they flora or fauna of a given medium, there are favorable conditions to develop, transforming its chemical and physical composition, may tend to deteriorate completely. Are the most hazardous in the pathologies affecting this material, hosting various decay organisms that affect the structure of wood, including wood-eating fungi are the larval cycle insects, social insects or termites, wood-eating marine and some other insects.

2.-Pathology Abiotic Origin: abiotic destructive agents are represented by changes in the material, in vivo origin and include major weather as the sun or rain, acting on the surface of the wood. Also in this group are chemicals and corrosive action generated on this material, and fire with partial or total destruction of parts or structure involved.

3.-Structural Pathology Source: These conditions are referred to deterioration in structure due to undergo a strength and stability problems. Predominant symptoms that affect the development of this disease: Section insufficient, excessive deformations and long-term breaks, failed marriages, local breaks, bracing enough, cracks in drying and warping of parts, among others.

• Topographic survey and geo-positioning satellite:

To arbitrate the positioning of these buildings are running a link georeferencing and vertices, which is made by a GPS (Global Positioning System) properly identified.
Also running a survey of the entire environment surrounding the church, covering a minimum of one hectare. Plans and coordinates generated are associated with the World Geodetic System, and are based on an ellipsoid (eg WGS-84).
The report of the professional in charge of the different measurements, you must provide clear and detailed description and methodology of the work, noting among other points or issues, support geodetic, topographic and processing of information and mode of measurement used (static or dynamic). You must also include a monograph of the vertices in general coordinate (village or town) and in particular (church) as well as placing a monolith georeferenced to the building in question.

• Restoration:

Upon approval of the PIP by the National Monuments Council, began the restoration stage. The time it takes for this depends on the degree of state intervention and that is the Church.
The first thing to realize is a field diagnosis of the building, followed by a thorough and registration replacement parts, primarily for structural reinforcement, and then continue with the intervention in coatings and ornaments.