Laketown "Miwa no Mori"

Last Uploaded: July, 2008


Exterior Thermal Ventilation Wall

Special Features

Q-1 Comfortable, Healthy, Safety Indoor Environment	Heat insulation efficiency at or above next-generation energy conservation standards Exterior Thermal Ventilation Wall Sunlight controlled by externally attached roll-up screens and green shade All openings fitted with low-radiation double glazing All rooms have openings in two directions Ventilation / heat exhaust promoted by skylights and fan light windows All 1st Floor windows and 2nd Floor balcony windows fitted with security double glazing Wind status and heat environment simulations carried out Wind direction analysis implemented for each housing unit
Q-2 Sustainability to Service Life	High durability performance (highest grade of housing performance indication standards) Strong aseismic efficiency (highest grade of housing performance indication standards) Conduit tube piping header system Periodic inspections and maintenance carried out by the Customer Advice Center
Q-3 Regional Contribution for View and Ecology	Planting mainly with indigenous species Use of natural stone in harmony with the local area Lines of motion secured by continuous arrangement of symbol trees and other tall trees Securing feeding places with trees that produce fruits and nuts Securing refuges by arranging a good balance of tall, medium height and low trees Securing watering places with bird baths made of natural stone Securing a porous space through the use of gabion-formed corner walls and flower planters Open exteriors Securing views by using large numbers of small trees Wind-breaks formed by tall hedges of shirakashi (evergreen oak)
LR-1 Saving of Energy and Water	Heat insulation efficiency at or above next-generation energy conservation standards Exterior Thermal Ventilation Wall Ventilation / heat exhaust promoted by skylights and fan light windows High-efficiency air conditioners Electric heat-pump water heaters IH cooking centers Water conserving toilets Rainwater usage system using rainwater tanks Proposals of home living with high energy conservation effects making use of natural ventilation, light intake, etc. Wind status / heat environment simulation carried out Wind direction analysis implemented for each housing unit
LR-2 Resources and Materials	Use of particle boards, glass wool and other materials that help to conserve resources Use of water-retentive boards made from industrial waste Flower planters using recycled wood with a recycled material usage ratio of 60% or more Use of timber thinnings for rainwater tanks, standing taps, tree supports, etc. “ISO14001” accreditation acquired by production factory Zero emissions achieved
LR-3 Contribution for Environment of Earth, Region & Town	Rainwater infiltration inlets Food waste processors Indigenous tree species mainly used for exteriors Green coverage rate 19% Water-retentive/water-permeable paving area ratio 20%

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These cases are described based on assessment results obtained using CASBEE.
CASBEE is a method for rating the environmental performance of buildings using Building Environmental Efficiency (BEE) as an indicator, which is based on the results of separate scores obtained for Q-1~Q-3 (Quality) and LR-1~LR-3 (Load Reduction).