I have a customer who has a shed dormer 12x 15 on the back of her cape stlye house. She asked me to replace the roll roofing on the dormer, on inspectioning the roof, I found the existing roll roofing had complety lost all the granuals and asphalt coating leaving only the felt backing.
The roof is exposed to the sun all day till late afternoon, the dormer roof has a 3 or 4 pitch roof and the roof surface is not visable form the ground.
After stripping the existing rool material , installed a layer of Ice & Water. After seeing that the existing black roll roofing had completly failed, I stalled white roofing to reflect the sun's heat.
I have been unable to convince her that it is good roofing practice to use white colored roofing material to reflect the heat, insteat of putting back the black colored roofing that had failed.
I have not found any articles to support this practice. Is this good roofing practice or am I wrong?