Roof dossierIssue 02

Make Every Roof-System Layer Explicit

Scope builder

Comparable roof proposals begin with the same written scope. Document the building, roof geometry and existing records, then make each layer and transition visible in the bid request.

01

Document the starting condition

Gather roof plans if available, prior invoices, leak logs and safe photographs. Identify roof planes, low-slope interfaces, additions, penetrations and drainage points. 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 “State whether pricing assumes full tear-off or another approach.” Identify materials or conditions that require specialist review. 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.

02

State whether pricing assumes full tear-off or another approach

Review tear-off boundaries, sheathing units, transition membranes, protection, ventilation and the closeout file in the context of the actual property rather than as a standard allowance. Tear-off pricing can hide different assumptions about staging, deck replacement units and weather protection, so those lines belong in the bid schedule. List access, staging and property-protection constraints; then identify materials or conditions that require specialist review. 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.

03

Specify hidden-work allowances

Deck condition may remain uncertain until removal. Ask bidders to state how deck replacement is measured, approved, photographed and priced instead of burying it in a vague allowance. Describe each plane, transition and roof-space condition separately, citing its supporting roof photograph, measurement or dated document. Make flashing reuse or replacement explicit. 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.

04

Define units and authorization for sheathing work

“Define units and authorization for sheathing work” 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. Include underlayment and membrane transitions. Make flashing reuse or replacement explicit. 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.

05

Complete the whole roof system

Record ventilation approach, penetrations, valleys, wall transitions, gutters or drainage interfaces, cleanup and closeout evidence. The covering alone is not the complete assembly. Before proceeding, list final photos, warranty documents and maintenance information. 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.

06

Request product data for proposed materials

Resolve “Request product data for proposed materials” before ranking proposals. State the baseline roof plane or transition, proposed roof-system response, exclusions, quantities and written change process. Define protection and weather-response responsibilities. List final photos, warranty documents and maintenance information. 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.

07

Complete the scope builder record

Finish this scope builder as a roof record: include its starting evidence, location map, proposed roof-system response and unresolved limits. For “Make Every Roof-System Layer Explicit,” 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 “Normalize Allowances, Exclusions and Closeout”, “Match Material Questions to Roof Shape and Exposure”, 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.

Official references

The City page is the authority starting point for permit questions; BC Housing supplies a roof-component maintenance framework. Neither source determines the concealed deck scope for a particular building.

City of Campbell River — building permits and inspectionsBC Housing — Maintaining Your Roof