6 Decision Criteria to Avoid Regrets When Selecting Materials for Building Construction

In building construction, material selection has a major impact on the finish and the ease of maintenance, just like design content and construction planning. Materials chosen solely for their appearance may not suit site conditions and can lead after installation to deformation, staining, deterioration, or additional repairs. Conversely, selecting high-performance materials does not necessarily guarantee good results. It is important to make judgments that include intended use, construction environment, detailing, schedule, and management system. This article explains six criteria to avoid regret when choosing materials, aimed at practitioners searching for information on "building construction".

Table of Contents

• When selecting materials for building construction, performance alone is not enough

• Criterion 1: Verify whether it matches the intended use and required performance

• Criterion 2: Assess whether it can withstand the site environment and deterioration risks

• Criterion 3: Check compatibility with constructability and detailing

• Criterion 4: Consider ease of maintenance and repair

• Criterion 5: Choose based on the construction schedule and procurement risks

• Criterion 6: Verify whether the rationale for decisions can be shared among stakeholders

• Common mistakes when selecting materials for building construction

• Summary: Material selection should be made with consideration for ease of use after completion

When Choosing Materials for Construction Work, Performance Isn't the Only Important Factor

When selecting materials for construction work, various properties such as strength, durability, fire resistance, thermal insulation, waterproofing, sound insulation, and aesthetics are checked. These are important criteria, but if decisions are based only on the numbers written on the performance data sheet, you may end up choosing materials that are difficult to handle on actual sites. Materials are not used alone; they function in combination with the substrate, finishes, joints, building services piping, openings, external environment, and the installers' work procedures. Therefore, it is necessary to consider both the inherent performance of the material itself and whether it can be installed on site as expected.

For example, when selecting exterior materials, you check not only the visual impression but also how rainwater affects them, sun exposure, wind, accumulation of dirt, the surrounding environment, and the scaffolding conditions during maintenance. For interior materials, factors such as users' movement patterns, cleaning frequency, susceptibility to scratches, moisture, and how they appear under lighting also become criteria. The quality of a material is not determined solely by the superiority shown in catalogs. Materials that suit the way the building will be used, cause few difficulties during construction, and are easy to manage after completion will ultimately lead to choices with fewer regrets.

Also, in building construction, multiple stakeholders—designers, contractors, clients, facility managers, and users—are involved in selecting materials. Clients often prioritize appearance and usability, contractors emphasize detailing and constructability, and facility managers may prioritize ease of cleaning and repair. If the decision leans toward only one perspective, dissatisfaction or rework is likely to occur at other stages. Before deciding on materials, it is important to clarify what to prioritize and what to accept.

To prevent regrets when selecting materials for building construction, it is important not to judge based solely on initial impressions. By checking samples, confirming installation conditions, taking past defect cases into account, and anticipating maintenance methods—examining from multiple perspectives makes it easier to reduce troubles after completion. From here, we will look in turn at six decision criteria you should keep in mind in practical work.

Evaluation Criterion 1: Confirm whether it matches the intended use and required performance

The first thing to check is whether the material matches the building’s intended use and required performance. In construction, even the same flooring, wall, roof, or substrate materials will have different performance requirements depending on where they are used. In residences, offices, shops, warehouses, factories, and public facilities, foot traffic, loads, cleaning frequency, humidity, temperature, noise, and the presence or absence of open flames all differ. When selecting materials, you need to think about what kinds of loads they will be subjected to in that location, rather than simply choosing them because “they are commonly used” or “they look good.”

For flooring, check foot traffic, use of carts, movement of heavy objects, exposure to water, slipperiness, and cleaning methods. If you use materials that are easily scratched in areas with heavy pedestrian flow, their appearance can deteriorate in a short time and the burden of repairs or replacement can increase. Using materials that readily absorb water in areas where water is used can cause swelling, discoloration, mold, and peeling. Conversely, choosing materials that are harder or more specialized than necessary can make installation and repairs difficult and also impair usability.

For exterior walls and roofs, verify durability against rain, wind, ultraviolet radiation, and temperature changes. Materials used outdoors are exposed to harsher conditions than indoor materials. Surfaces that tend to heat from solar radiation, faces that are prone to getting wet from rain, wind-exposed sides, and regions where snow or freezing is expected—these conditions cause the same materials to deteriorate differently. You must check not only the performance of the materials but also the installation methods, joints, ventilation, drainage, and how they combine with the substrate.

In areas where performance such as fire protection, sound insulation, thermal insulation, and waterproofing is required, confirm whether the entire assembly, rather than individual materials alone, can meet the requirements. Walls, floors, and ceilings often achieve their performance by combining multiple materials. Even if you believe you have only changed the surface material, the required performance may not be secured because of its relationship with the substrate and joints. Especially for parts related to laws, design documents, and approved specifications, it is important not to change materials lightly based solely on on-site judgment, but to proceed through confirmation by designers, supervisors, and other relevant parties.

When confirming intended use and required performance, it is important to concretely imagine how it will be used after completion. Clarifying who will use it, how frequently it will be used, what kind of cleaning will be performed, and what level of deterioration is acceptable will make the criteria for material selection clear. Don’t decide based solely on appearance; by evaluating function, durability, safety, and ease of maintenance comprehensively, you can reduce the risk of later feeling “this space wasn’t suitable.”

Evaluation Criterion 2: Check whether it can withstand the on-site environment and degradation risks

When selecting materials, confirm the environmental conditions of the site where the building will be located. Even the same material will deteriorate at different rates depending on the region, orientation, surrounding conditions, and usage environment. Materials face greater stresses in areas near the sea, regions with high humidity, places with large temperature fluctuations, locations with strong solar exposure, and areas with heavy traffic where dirt easily accumulates. Choosing based only on standard specifications without observing the actual site environment can lead to faster deterioration than anticipated.

For exterior materials, the flow of rainwater and the ease of drying are important. Even in locations that are exposed to rain, deterioration conditions differ between places that dry quickly and places where water tends to remain. The presence or absence of eaves, the building’s projections and recesses, the distance to neighboring properties, wind direction, and splashback from the ground all affect how dirt and moisture accumulate. Because exterior wall materials, sealants, metal components, and wood-based materials are susceptible to moisture and water, it is important to consider drainage and ventilation at the material selection stage.

Even interior materials are affected by humidity, temperature fluctuations, and ventilation conditions. Areas such as wet areas, basements, storage rooms, kitchens, mechanical rooms, and areas near entrances and exits tend to have environments different from typical living spaces. In places where moisture becomes trapped, attention is needed for moisture absorption, mold, corrosion, and peeling. Near entrances and exits, materials may be exposed to rainwater, sand, and outside air, so materials resistant to abrasion and soiling may be appropriate. Considering materials not only for areas used by people but also for the circulation routes of equipment and cleaning makes it easier to choose options that match actual operations.

When considering deterioration risk, check not only whether a material will fail but also changes in appearance. Discoloration, fading, dirt, stains, scratches, rust, warping, cracking, efflorescence, and peeling can affect users' impressions even when there are no structural problems. It is especially important to understand how aging will appear in highly visible locations. Even if samples look beautiful when newly built, if you do not anticipate what condition they are likely to be in after several years, satisfaction after completion can vary.

In building construction, it is also important not to overestimate the durability of materials. Every material has environments in which it performs well and environments in which it does not. Even materials considered highly durable can experience problems if substrate preparation is insufficient, detailing is poor, or cleaning methods are unsuitable. To make the most of a material's performance, appropriate installation conditions and maintenance are necessary. By selecting materials that place minimal strain on the site environment and incorporating inspection and repair plans for parts prone to deterioration, long-term problems can be more easily reduced.

Evaluation Criterion 3: Confirm the compatibility between constructability and detailing

When choosing materials, you must verify whether they can actually be installed and whether they will fit the site conditions. Even if a material is excellent, if it does not match site conditions it can reduce installation accuracy, affect the construction schedule, and cause variations in the finished result. In building construction, even if something works on the design drawings, dimensional tolerances, substrate conditions, delivery routes, working space, and coordination with other trades on the actual site will have an impact. Material selection should be judged not only by performance checks on paper but also by confirming that it can be accommodated on site without difficulty.

When assessing constructability, confirm how easy the material is to process, how easy it is to install, its weight, storage conditions, and how easy it is to protect during construction. Heavy materials require more effort for delivery and installation, and they also demand greater manpower and safety measures. Materials that are easily damaged need careful protection during installation. Materials that are sensitive to temperature and humidity require consideration of storage locations and the timing of installation. If these factors are overlooked, they can cause a decline in quality during construction even if the materials themselves are not defective.

When checking details, pay attention to edges, corners, openings, level changes, areas around equipment, and joints with different materials. Building defects are more likely to occur at locations where materials change or where water tends to collect than on large flat surfaces. At interfaces such as exterior walls and openings, floors and walls, roofs and upstands, and where finish materials meet fixtures and equipment, it is necessary to consider dimensions, fixing methods, waterproofing, movement (expansion and contraction), and cleanability. Selecting materials without considering thickness, warping, and expansion/contraction can lead to gaps, lifting, cracking, and rainwater ingress.

Coordination with other trades is also important. In building construction, many trades—structural work, substrate preparation, finishes, electrical, equipment, joinery, and exterior works—perform their tasks in sequence. Choosing a particular material can change how the substrate is constructed, the routing of piping, the dimensions of joinery, and the order of finishing. If material decisions are delayed, preceding work may need to be redone or sudden adjustments may be required on site. A material with good constructability is not simply one that is easy to install, but one that can be easily coordinated with the processes before and after it.

You should also take into account the contractor’s experience and the site organization. When adopting special materials or unfamiliar construction methods, it is necessary to confirm the installation procedures, carry out trial installations, and establish quality inspection steps. If materials are used on site for the first time, unexpected extra work or defects may occur. At the material selection stage, it is reassuring to check whether the contractor is familiar with handling them, whether the necessary tools and work environment are available, and whether post-installation inspection methods are clearly defined. Considering not only appearance and performance but also the reproducibility of the installation leads to material choices you won’t regret.

Evaluation Criterion 4: Consider the Ease of Maintenance and Repair

When selecting materials for building construction, it is important to consider not only their condition immediately after completion but also how easy they will be to maintain afterward. A building is not finished once construction is complete; it is used daily and sustained through accumulated dirt, wear, inspections, and repairs. Materials that look attractive when new can increase the operational burden if they are difficult to clean, show scratches easily, are hard to repair in sections, or require significant effort to replace.

When assessing ease of maintenance, first check the cleaning methods. Whether it can be wiped with water, whether there are restrictions on the use of detergents, whether dirt soaks in easily, or whether the surface is prone to scratching will change the effort required for daily upkeep. Areas that are frequently touched by hands, floors, entrances, common areas, and wet areas tend to get dirty more easily and require more frequent cleaning. If the cleaning methods do not align with the building’s operational setup, dirt will accumulate and lead to premature deterioration and a decline in appearance.

Ease of repair is also important. In construction work, no matter how carefully the work is carried out, it is impossible to completely avoid scratches and deterioration during use. If a material allows localized repairs, it is easier to fix only the damaged areas and to maintain the building while it is in use. On the other hand, materials that are finished as large, continuous surfaces or materials that are difficult to color-match may still show noticeable traces even after partial repairs. At the material selection stage, it is necessary to confirm what kinds of repairs can be expected in the future.

Don't overlook the ease of replacement and inspection. In locations where access to equipment inside ceilings or walls is required, it's important whether finish materials can be easily removed or whether inspection panels can be provided. Using materials that are difficult to remove in areas where equipment replacement or pipe repairs are anticipated can broaden the scope of future work. Materials not only finish the building's surfaces but also affect future inspections and renovations, so it's desirable to consider them including maintenance access routes.

Also, choosing materials with aging in mind is important. Some materials develop an appealing patina over time, while others show deterioration more noticeably. Which is better depends on the building’s use and maintenance policy. In places where a look close to the newly built state is always required, materials that resist soiling and are easy to repair may be appropriate. In areas where some change can be accepted, you can choose materials that take advantage of the changes in appearance over time. The important thing is not to choose without anticipating how they will change after completion.

Choosing materials with maintenance in mind affects the satisfaction of clients and users. During construction, attention tends to focus on the initial finish, but the true evaluation comes after the building is put into use. Materials that are easy to clean, make damage easy to notice, and are easy to repair when needed help preserve a building’s value over the long term. When selecting materials for construction work, it is important to incorporate the perspective of the people who will manage the building after completion at an early stage, not just that of the contractors.

Criterion 5: Choose based on process and procurement risks

In construction projects, whether materials can be procured as planned is also an important decision criterion. Even if a material has excellent performance or design, construction will be difficult to proceed if it does not arrive on site when needed. When selecting materials, it is necessary to check delivery times, quantities, storage locations, conditions for site delivery, and substitutability, and to make sure the schedule is feasible. In particular, decisions on finishes and equipment-related materials, if delayed, tend to affect the sequence of ordering, fabrication, delivery, and installation.

In procuring materials, the risk varies depending on whether the materials are standard, commonly available items or are closer to made-to-order. Even common materials can take time to arrange depending on color, dimensions, specifications, and quantity. If a sudden material change is required on site, it is not always possible to promptly provide materials with equivalent performance or appearance. When selecting materials, checking expected lead times, inventory status, and the ability to accommodate changes helps prevent disruptions to the schedule.

Conditions for delivery and storage are also important. Large or long-length materials require checking the delivery route to the site, unloading locations, and temporary storage space. On tight urban sites or renovation work inside existing buildings, delivery routes may be limited, and the size and weight of materials can become constraints. For materials that must be protected from moisture and direct sunlight, securing suitable storage space is also necessary. Selecting materials without considering how they will be handled after being delivered to the site can lead to damage, soiling, warping, and installation defects.

In relation to the project schedule, the timing of construction is also checked. Materials that are affected by temperature, humidity, rainfall, and drying times will have different installation conditions depending on the season and weather. Exterior work is especially susceptible to rain and strong winds, and even interior work can be affected in the finished result if ventilation or drying conditions are not adequate. At the material selection stage, it is necessary to confirm that the installation conditions match the planned schedule. If materials are used under an unrealistic schedule, they may not be able to perform fully.

To reduce procurement risks, it is important to clarify the timing of material decisions. If the client's approval, the designer's confirmation, or the contractor's arrangements are delayed, the site may be forced to proceed with provisional decisions. Changing materials later will affect the substrate, detailing, construction schedule, and final finish. When selecting materials, organizing by when decisions must be made, who will approve them, and under which specifications orders will be placed can reduce misunderstandings among stakeholders.

When selecting materials for building construction, it is necessary not only to pursue ideal specifications but also to judge whether they can be integrated into the actual construction process. Materials that are easy to procure, match the timing of installation, and are simple to manage on site contribute to stable quality. When comparing material options, it is important to verify, in addition to performance and appearance, the reliability of procurement and the impact on the construction schedule.

Decision Criterion 6: Confirm whether the basis for judgment can be shared among stakeholders

To avoid regrets when choosing materials, it is important to ensure that the reasons for selecting a material can be shared among stakeholders. In construction projects, multiple parties are involved, such as clients, designers, contractors, subcontractors, and managers. If each person understands the materials based on different assumptions, misunderstandings — like “this is not what I expected,” “I wasn’t told,” or “another material would have been better” — are likely to arise during construction or after completion. Recording and sharing the reasons for material selection can enhance the transparency of decisions.

The information to be shared is not limited to the material name. Confirm the reasons for selection, the required performance, the locations where it will be used, color and texture, installation conditions, maintenance considerations, and how alternative materials will be handled. For example, whether the choice prioritized appearance, durability, or ease of cleaning will change the judgment when considering changes later. If the selection criteria remain ambiguous, it will be difficult to know whether similar materials can be substituted on-site or whether approval is always required.

Sample review is also an important means of sharing information. Materials can be difficult to assess accurately—color, texture, light reflection, tactile feel, and thickness—based on photos or documents alone. A small sample can look different from how it appears when applied over a large surface. Some materials change their appearance depending on lighting conditions or the way natural light enters. When checking samples, record who checked them, when, under what conditions, and what was approved to help prevent later misunderstandings.

Pre-installation checks are also essential. Even if the material specifications have been decided, it is necessary to confirm that the materials delivered to the site match the approved details, that there are no problems with quantities or dimensions, and that storage conditions are appropriate. For finish materials, differences in color or lot, scratches, dirt, or warping can affect the final appearance. If a problem is noticed only after opening the materials on site, replacement or reordering can take time. Incorporating material acceptance checks into the workflow is also part of quality control.

Sharing the rationale behind decisions also aids future maintenance. When carrying out repairs or renovations after completion, knowing which materials were used where and why those specifications were chosen makes it easier to take appropriate action. If information from the construction process is not retained, it can take time to find matching materials or lead to choosing incorrect repair methods. Selecting materials for building construction is a decision that affects not only the construction period but the entire time the building is in use.

Sharing the rationale behind decisions among stakeholders not only helps prevent problems but also leads to more consistent quality. If the purpose of material selection is clear, it becomes easier to judge priorities when uncertain on site. By organizing and linking the client's intentions, design objectives, construction precautions, and maintenance conditions, the accuracy of material selection is improved.

Common Mistakes When Choosing Materials for Construction Projects

A common mistake in selecting materials for construction work is deciding based solely on appearance or impression. Even if a sample looks attractive, in actual use it may show dirt more easily, be prone to scratches, interact poorly with lighting, or not match surrounding finishes. Materials should not be considered in isolation; it is necessary to think about how they will look within the whole building and how they will be used.

Another common mistake is overestimating a material’s performance. Even high-performance materials cannot deliver their intended properties if installation conditions or compatibility with the substrate are poor. Waterproofing, thermal insulation, soundproofing, and fire resistance are often determined not only by the material itself but by the installation method and the combination with surrounding components. Simply changing the material will not solve the problem; it is necessary to check the detailing and installation procedures as well.

Choosing without considering maintenance is another point that can easily lead to regret. If you place too much emphasis on how it looks when completed, you may select materials that require extensive cleaning or repair work. Especially in buildings used by many people, dirt and damage are unavoidable. It is important to check in advance whether routine cleaning will be sufficient, whether partial repairs are possible, and how much work will be required when replacements are needed.

There are also failures caused by delays in deciding on materials. If work progresses without finalized specifications, it affects the substrate and related work. Hastily chosen items on site can result in poor fit or an inability to procure the desired materials. Material selection is not just a finishing-stage issue. Narrowing down options early and establishing an approval process helps stabilize the entire construction.

Also, differences in understanding among stakeholders can be a major cause of trouble. If the client prioritized color and texture while the contractor thought materials with equivalent performance would be acceptable, a lack of shared decision criteria can lead to dissatisfaction after completion. When selecting materials, it is important to keep records of documents, samples, the scope of work, and approvals so that all stakeholders can make judgments based on the same assumptions.

To prevent failures in material selection, it is effective to start considering early and to check each item—use, environment, constructability, maintenance, construction process, and methods of sharing—one by one. Rather than doing anything special, it is important not to omit basic checks. In building construction, small choices of materials can greatly affect post-completion usability and the burden of management. A mindset that judges not only by immediate impressions but with a view to the building’s entire period of use is required.

Summary: Choose materials based on their usability after completion

To avoid regretting material choices in construction work, it is important to consider not only the performance of the material itself but also its intended use, the site environment, constructability, maintenance and upkeep, the project schedule, and information sharing among stakeholders. Rather than deciding based on a single factor, concretely imagining the flow in which the material will be used, installed, and maintained at the actual location makes it easier to select materials that better fit real-world conditions.

Especially project personnel often serve as the link between the client's wishes and the site conditions. There are situations where appearance should be prioritized, and others where durability and cleanability must take precedence. Due to the construction schedule, some materials need to be decided early. What is important is to clearly define, for each material, what to prioritize and what level of risk to accept. If the rationale for decisions is well organized, it becomes easier to explain to stakeholders and can reduce changes during construction and dissatisfaction after completion.

Choosing materials is a crucial process that determines the quality of construction. By considering not only the appearance immediately after completion but also how it will look after several years, the ease of inspection, the ease of repair, and the usability for occupants, you can more effectively increase overall satisfaction with the building. When selecting materials for building construction, review the six decision criteria introduced in this article and proceed with choices that suit the site conditions.

Also, when selecting materials and managing construction, it is important to accurately record on-site confirmations, photographic records, approval histories, and reasons for any changes. If the rationale for choosing materials and the verification results from construction are organized, they will help with explanations during work and with maintenance after completion. As needed, make use of construction management apps, photo management tools, drawing management tools, and the like, and establish a system to retain records that stakeholders can easily review later.