would be nice if each layer of felt was identified and whether it was a torch on or cold applied adhesive. I have been trying to find out these details and there is still no definative answer.
sorry this was in response to the diynot self instructions for laying a felt roof which could be found here://www.diynot.com/pages/rg/rg021.php#a0
sorry this was in response to the diynot self instructions for laying a felt roof which could be found here://www.diynot.com/pages/rg/rg021.php#a0