Roof Homepage > Maintainability Scoring System > COMASS > Roof You can download our [download id=”2506″] here. Or download our [download id=”2779″] for components with Low! score. Maintainability Scoring for Roof Enter Value (1 to 5). For non-applicable issues, enter 0 or leave it blank. Component Factor Your Note (if any) Score Remarks Total Design Phase Roofing sys. Selection Deck Struct. Conc. Bearing capacity Deflection Movement jt. Vapour barrier Parapet Pipe & equip. WP membrane Selection LAM Jt. detail Penetration Preformed Jt detail / flashing Penetration Venting Insulation Properties Material Tiles/ panels Properties Sealant Type Joint geometry Bk. rod detail Roof drainage Design rate Effective runoff Angle of slope Uniformity of slope Ease of construction Outlet Size & No. Location Protection RWDP RWDP size & material Slope Access Fixing Jointing Termination Ancillary facility Coordination Construction Phase Deck Concreting Precast unit Propping Const joint Curing Protection Finished surface WP-LAM Storage & prep. LAM apply Membrane application Joint & penetration Protection Testing Insulation Layout Tiles/ panels Base Tiling Sealant Substrate Quality check Application Drainage Jointing Testing Maintenance Phase Roof surface Check Clean Drainage Check Clean Details Check External factorsMetal Usage Building age Exposure Total Clear Form