IKO enertherm MG PIR Tapered Drainer Board is a 100% CFC, HCFC, and HFC-free insulation board with a core in hard polyisocyanurate foam. It is laminated on both sides with a perforated coated glass fabric.
The tapered drainer board provides a useful method of forming falls on a level roof deck for use with bitumen or adhesive-bonded waterproofing systems.
Providing both insulation and falls are of particular importance for reroofing existing roofs, many of which do not have sufficient falls and probably do not have sufficient insulation.
Tapered insulation can provide falls in one direction to a gutter or level valley, or in two directions to form falls and cross falls.
