All houses exceed standards
for long-life quality housing
Safe houses built by RID HOUSE
About long-life quality housing
All RID HOUSE houses built to our basic specifications clear the standards for long-life quality housing.
Long-life quality housing refers to houses that the government recognizes as meeting standards that allow it to remain in good condition over a long period of time. Long-life quality housing is built with measures to ensure that they remain in good condition for long periods of time. These houses also have long-term maintenance plans to ensure they are more durable, earthquake-resistant, and achieve superior energy-saving performance compared to ordinary houses.
A Seismic resistance and energy saving measures
1.Improved earthquake resistance: Seismic Grade 3 (maximum value)
2.Improved insulation performance: Energy measure Grade 6
B Deterioration countermeasures, maintenance management/upgrades, maintenance and preservation
1.Measures against building deterioration: Deterioration countermeasures Grade 3 (maximum value)
2.Maintenance management: Ensure ease of upgrades: Upgradability Grade 3 (maximum value)
3.We clarify maintenance and preservation methods
C Interest rate benefits, tax reduction measures
1.Eligible for Flat 35S
2.Eligible for tax reduction measures
3.Discount on earthquake insurance premiums
High performance that exceeds certification standards for long-life quality housing
Obtained the maximum value under the Building Standards Act!
Depending on the plan, we may comply with the "Long-Term Excellent Housing" certification standards (Grade 2).
Maximum level, the same as disaster prevention bases
Seismic Grade 3
RID HOUSE houses are built to a seismic grade that is the same as a disaster prevention base, Seismic Grade 3, which is the highest level of seismic resistance.
With over 2,000 active faults, Japan is prone to earthquakes, meaning an earthquake could strike at any time. With this in mind, RID HOUSE builds houses based on the assumption of a major earthquake with a seismic intensity of 6 or higher.
*This may not apply depending on the floor plan.
Three construction methods
or high insulation performance
Interior and exterior double insulation method
The entire house is wrapped in high-performance insulation. This includes not only the exterior walls, but also ceilings and floors, to achieve superior insulation performance.
Highly insulating housing materials are used for windows and doors, which are easily affected by outside temperature, to create a highly insulated house that feels as if the entire house functions as an insulated flask.
In summers, air conditioning is more effective because sunlight and hot air are blocked. In winters, the house shuts out the cold air from the outside to provide warmth with minimal heating. Our designs ensure houses maintain a comfortable room temperature and provide an energy-saving lifestyle.
Triple glass
Windows are the easiest locations for heat to escape from the house. Double glass is commonly used, but we use triple glass to provide even greater insulation.
Through this approach of multiple layers of insulation, we achieve high levels of airtightness and insulation.
Type I ventilation
RID HOUSE ventilation systems bring fresh outdoor air indoors at room temperature. For example, in the summer, outside air at 35°C is cooled to 28°C before being supplied to the interior. In winter, outside air at 0°C is warmed to 18°C and then supplied indoors.
(This assumes that air conditioning is used to maintain an interior temperature of 27℃ in the summer and that heating is used to maintain an interior temperature of 20℃ in winter.) This means that, even with ventilation, cold air will not escape in the summer and you will not feel the cold due to ventilation in the winter.
Clears high energy saving standards!
Economical housing with high levels of insulation and airtightness
RID HOUSE standard specifications meet extremely high energy-saving standards for both UA and C values, making them very economical due to their excellent insulation and airtight performance.
About UA value
The energy-saving standards use the average heat transfer coefficient (UA value) for outer shell performance.
The difference compared to the previously used Q value is that this value evaluates the pure insulation performance of the building without including heat loss due to ventilation, etc.
①UA value
U value: average penetration amount of outer shell
●Evaluates pure building insulation performance, not including heat loss due to ventilation, etc.
●●The smaller the value, the higher the energy saving performance.
| Regional classification | RID HOUSE houses | 1 (Hokkaido) | 2 | 3 | 4 | 5 | 6 | 7 | ー |
|---|---|---|---|---|---|---|---|---|---|
|
UA value
Average heat transfer coefficient Watts per square meter kelvin |
0.25 or less | 0.46 | 0.46 | 0.56 | 0.75 | 0.87 | 0.87 | 0.87 | ー |
*Construction results in Sapporo city
②C value
Equivalent gap area (C value) is the value obtained by measuring the gap in the house and dividing the area of the gap by the floor area.
To measure the gap, all holes that have been intentionally made, such as ventilation holes, are covered and internal air is forced out using a blower.
The C value is measured based on the air pressure difference and air volume that occur at this time.
| Regional classification | RID HOUSE houses | 1 (Hokkaido) | 2 | 3 | 4 | 5 | 6 | 7 | ー |
|---|---|---|---|---|---|---|---|---|---|
|
C value
Equivalent gap Square centimeter per square meter |
0.2 or less | 0.46 | 0.46 | 0.56 | 0.75 | 0.87 | 0.87 | 0.87 | ー |
*Construction results in Sapporo city
Airtightness measurements conducted by a third party
To provide a comfortable and eco-friendly lifestyle made possible by highly airtight and highly insulated housing, RID HOUSE uses a third-party agency to conduct airtightness measurements in all houses.
High airtight performance
■Highly airtight housing that is 5 times more energy efficient than national energy conservation standards
RID HOUSE conducts airtightness measurements on all houses.
By covering the air intake and exhaust ports with tape, the airtightness is measured using a special device. The measurement results are provided to the houseowner at the time of handover.
Measurements are taken until the C value of all houses is below 0.2cm2/m2
About HEAT20
HEAT20 was originally launched in 2009 as the “Society of High-Insulation Technology Development Committee for Housing for the Next 20 Years.” In 2020, the program became an incorporated association and adopted the name “Society of Hyper-Enhanced Insulation and Advanced Technology Houses for the Next 20 Years.” HEAT20 is the abbreviation of this name.
Standard values for insulation performance are evaluated using ranks such as G1 and G2. ZEH outlines standards that include not only insulation performance but also the adoption of energy generating equipment such as solar power and energy saving equipment. In contrast, HEAT20 only outlines insulation performance for each region, making it an easily comprehensible standard for simple insulation performance comparisons.
RID HOUSE applies to G2 under HEAT20.
| G1 | G2 | G3 | |
|---|---|---|---|
| Minimum sensible temperature during winter | Not below roughly 13℃ | Not below roughly 15℃ | Not below roughly 16℃ |
| When the sensible temperature is less than 15℃ | Approximately 3% | Approximately 2% | Approximately 2% |
| Heating load reduction rate | Reduction of approx. 20% | Reduction of approx. 30% | Reduction of approx. 50% |
Future indicators of insulation performance
Meeting energy-saving standards is not enough?!
Improving energy saving performance step by step
As countries around the world accelerate their efforts to combat global warming, Japan also aims to reduce greenhouse gas emissions by 46% (compared to 2013) by 2030, and to achieve net zero by 2050.
Regarding housing, compliance with energy-saving standards will start in 2025, and the roadmap sets that energy-saving standards will be raised to the ZEH level by 2030 at the latest.
In 2025, the previous “highest grade” will become the “lowest grade”!
Along with the establishment of Grades 5, 6, and 7, compliance with Grade 4 will become mandatory in 2025, making grade 4 the minimum level that must be cleared by law.
Furthermore, in 2030, the ZEH level Grade 5 is scheduled to become the lowest level.
RID HOUSE standard specifications
clear 2030 energy saving standards (ZEH level) for all houses
The Ministry of Land, Infrastructure, Transport and Tourism is moving forward with a plan to make ZEH-level energy-efficient houses the standard for new construction by 2030 as part of its efforts to achieve carbon neutrality.
RID HOUSE provides an economical and comfortable living environment with insulation performance that far exceeds ZEH standards.
The deterioration prevention grade is a standard for evaluating the durability of buildings based on the Housing Performance Indication System. The evaluation of deterioration prevention grade is performed mainly by focusing on the materials used in structural frames such as columns and beams.
RID HOUSE builds deterioration prevention Grade 3 houses designed to be usable for up to three generations (about 75 to 90 years) without major renovation work.
| Item | Results | |
|---|---|---|
| 3-1 Deterioration prevention grade (Structural framework, etc.) |
The extent of measures necessary to extend the timing until large-scale repair work, such as replacing materials used in structural frameworks, etc., is required. | |
3 |
Necessary measures have been taken to extend the period until major renovation work is required to three generations (approximately 75 to 90 years) under normally assumed natural and maintenance conditions. | |
| 2 | Necessary measures have been taken to extend the period until major renovation work is required to two generations (approximately 50 to 60 years) under normally assumed natural and maintenance conditions. | |
| 1 | Measures stipulated by the Building Standards Act have been taken. | |
The maintenance management measure grade is one of the items in the housing performance labeling system, and is a grade that indicates the ease of maintenance of water supply and drainage pipes, gas pipes, etc.
RID HOUSE is rated Grade 3, the highest grade on a scale of 1 to 3. This means RID HOUSE houses are easy to maintain equipment and allow for smooth repairs in the event of an emergency.
| Item | Results | |
|---|---|---|
| 4-1 Maintenance management measure grade (Dedicated piping) |
Degree of necessary measures to facilitate maintenance (cleaning, inspection, and repair) of dedicated water supply and drainage pipes, hot water pipes, and gas pipes | |
3 |
Measures have been taken to facilitate maintenance and management, such as installing cleaning port and inspection port. |
|
| 2 | Basic measures have been taken to maintain and manage the pipes, such as not embedding them in concrete. | |
| 1 | Other | |
The primary energy consumption grade is an indicator for determining whether a house conforms to energy-saving standards, and is used as a standard when aiming for a house with high energy-saving performance.
RID HOUSE is rated Grade 6, the highest grade on a scale of 1 to 6. This means the energy consumption of the house is extremely low, providing the best performance for an energy-saving house.
| Item | Results | |
|---|---|---|
| 5-2 Primary energy consumption grade |
Extent of measures to reduce primary energy consumption | |
| Regional classification［12345678］ | ||
| Design primary energy consumption per floor area ［ ー MJ/(m2-year)］ *If the value is not displayed, "-" is displayed. | ||
6 |
Measures have been taken to significantly reduce primary energy consumption (to the extent equivalent to the Building Energy Consumption Performance Guidance Standard specified in the Standards Ministerial Ordinance (limited to the case that standard primary energy consumption, which is the basis for its setting, is pursuant to the provisions of Article 14, Paragraph 1 of the Standards Ministerial Ordinance)). | |
5 |
Measures have been taken for a greater reduction in primary energy consumption | |
| 4 | Measures have been taken to significantly reduce primary energy consumption (to the extent equivalent to the Building Energy Consumption Performance Standards specified in the Standards Ministerial Ordinance (limited to the case that standard primary energy consumption, which is the basis for its setting, is pursuant to the provisions of Article 5, Paragraph 1 of the Standards Ministerial Ordinance)). | |
| 1 | Other | |
There are many benefits
to owning a long-life quality house.
- Eligible for lower mortgage interest rates
- Eligible for discounts on earthquake insurance premiums, etc.
- Loan period can be extended
- Asset values are less likely to decline, and sales prices tend to be higher.
- Eligible for tax benefits
