Start with geometry, not a product label
Record slopes, plane changes, valleys, walls, penetrations and low-slope areas. A proposal should explain how its assembly addresses the actual roof shape. Begin the roof record with a date and its roof plane or transition; attach the available evidence before making the repair, overlay or replacement decision. The next checkpoint is “Identify interfaces between different covering types.” Record access constraints for future maintenance. Keep that action beside its observation. The roof-scope reviewer can then distinguish the intake roof record from roof closeout record material added during later pricing or investigation.
Identify interfaces between different covering types
Review slope, exposure, interface details, maintenance access and evidence for each proposed roof covering in the context of the actual property rather than as a standard allowance. A material option only becomes comparable after slope, exposure, edge details, penetrations and future access are matched to its documents. Ask how edges and penetrations are detailed; then record access constraints for future maintenance. Label each roof photograph, drawing and prior record by roof plane or transition and date. When a deck, flashing or ventilation question remains, record it in the roof record; identify the roof-scope reviewer review or roof closeout record document that could resolve it. This prevents one leak location from becoming an unsupported conclusion about every plane.
Compare evidence by material family
For asphalt, metal or low-slope interfaces, request current product and installation documents relevant to the proposed assembly. Avoid generic lifespan or performance claims. Describe each plane, transition and roof-space condition separately, citing its supporting roof photograph, measurement or dated document. List colour and appearance decisions separately from technical scope. A finding at one roof plane or transition may alter the proposed repair, overlay or replacement decision; unobserved parts of the roof system stay outside the available evidence.
Confirm substrate and underlayment assumptions
“Confirm substrate and underlayment assumptions” belongs on its own line in the roof record. For the roof plane or transition, pair the roof photograph evidence with any concealed or untested roof system limits. Ask how wind and water details are supported. List colour and appearance decisions separately from technical scope. Cross-reference the roof-system response answer to its roof photograph; include the roof record drawing, a product document for the roof-system response, or a dated reply from the roof-scope reviewer. Arrange deck, flashing or ventilation review before the new covering hides the condition or material orders lock the assembly.
Normalize ownership questions
Compare maintenance expectations, repairability, accessory compatibility, documentation and cost drivers. Keep optional upgrades distinct from required scope. Before proceeding, avoid treating a warranty headline as proof of installed performance. Give task ownership to the roof-scope reviewer; place its checkpoint before the repair, overlay or replacement decision, then name the expected roof closeout record. This separates current roof record evidence from the proposed roof-system response. Put manufacturer information and roof-scope reviewer input in the roof closeout record; file authority questions under the relevant roof system decision.
Separate base bid, alternates and allowances
Resolve “Separate base bid, alternates and allowances” before ranking proposals. State the baseline roof plane or transition, proposed roof-system response, exclusions, quantities and written change process. Record manufacturer document versions. Avoid treating a warranty headline as proof of installed performance. Review each roof photograph while it can still change the repair, overlay or replacement decision. Record a dated repair, overlay or replacement decision choice or assign the remaining deck, flashing or ventilation question. Track that uncertainty in the roof closeout record, outside the lump-sum total.
Complete the material matrix record
Finish this material matrix as a roof record: include its starting evidence, location map, proposed roof-system response and unresolved limits. For “Match Material Questions to Roof Shape and Exposure,” justify each roof-system response inclusion and assign the next deck, flashing or ventilation question. In the roof record, list the approvals, product records and roof closeout record expected. Continue with “Make Every Roof-System Layer Explicit”, “Normalize Allowances, Exclusions and Closeout”, and “Ask What Happens Beneath the Roof Covering” for related roof system decisions. Use the roof record guide links for any wider roof-system response comparison. Keep the dated roof reference beside the decision it informed so a later product or authority update remains visible.