*'''Weather''': Porous asphalt and pervious concrete require a specific temperature range to set properly and the setting time can be several days<ref>City of Portland. 2004. Portland Stormwater Management Manual. Prepared by the Bureau of Environmental Services (BES). Portland, OR.</ref>. | *'''Weather''': Porous asphalt and pervious concrete require a specific temperature range to set properly and the setting time can be several days<ref>City of Portland. 2004. Portland Stormwater Management Manual. Prepared by the Bureau of Environmental Services (BES). Portland, OR.</ref>. |