[Bldg-sim] Queary

[sambhav tiwari]

Hi,
        I had a query  whether  ASHRAE 90.1 mentions what value has to
be taken for wall and roof absorptance as it mentions for U value . As
absorptance value has great impact on heat gains and further on energy
consumption.

Can we have a better wall absorptance in proposed case from base case
so to improve energy performance

Any response will be highly appreciable.

Thanks
Sambhav Tiwari.