Sentences with phrase «leakage rate remains»

Careful attention is paid to the vapour barrier to ensure that the air leakage rate remains below.6 air changes per hour (ACH), the maximum allowed with the PassivHouse framework.

Not exact matches

Methane lawsuit threat hangs over EPA's head Research by the Environmental Defense Fund has found that leakage rates must remain below 3.2 percent for natural gas power plants to carry a climate advantage over coal plants.

Moreover, even if methane leakage were to remain modest in some areas, long - term climate models suggest that warming trends have less to do with the rate of methane leakage and more to do with other variables, such as the thermal efficiency of future coal plants and whether the switch to gas is permanent or a bridge to zero - carbon energy.