Below-Grade Membranes
Foundation and below-grade waterproofing areas from structural and architectural details.
Building Envelope
Waterproofing Estimating Services
Waterproofing membrane and related envelope takeoffs for foundations, decks, and wall assemblies shown on project documents.
Overview
Waterproofing Quantities Tied to Envelope Details
Waterproofing often sits at transitions—foundation walls, decks, planters, and below-grade assemblies—where missing a detail creates pricing risk.
Packages organize membrane areas, protection layers, and related accessories when they appear in the drawings and specifications you provide.
Trade focus
Waterproofing membrane and related envelope takeoffs.
What We Estimate
Depending on project drawings and requested deliverables.
Deck & Plaza Waterproofing
Deck and plaza membrane quantities when shown.
Protection & Drainage Layers
Protection board, drainage composite, and related layers when specified.
Flashings & Transitions
Transition and flashing notes that affect waterproofing continuity.
Typical Quantity Categories
Membrane areas by location
Protection and drainage layers
Transition details
Assumptions for incomplete envelope notes
Benefits of a Focused Waterproofing Package
Drawing-based quantities
Measurements and counts start from the plans and specs you share.
Clearer package boundaries
Scope stays organized for the trade you need priced.
Documented assumptions
Gaps and open items are noted when documents leave room for interpretation.
Waterproofing Estimating Process
01
Share drawings
Provide plans, specifications, and notes on the requested Waterproofing scope.
02
Confirm package boundaries
Clarify inclusions, exclusions, and related trades before measuring.
03
Measure & count
Develop quantities from the drawings using the units that fit the package.
04
Organize deliverables
Structure results for bidding, procurement, or cost review.
05
Deliver the package
Issue the agreed takeoff or estimate with assumptions documented.
Possible Deliverables
Depending on project drawings and requested deliverables.
Quantity takeoff by item or location
Material summary
Notes and assumptions
Cost organization when estimating is requested
Related Services
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Material Takeoffs
Detailed material quantity identification from drawings and specifications.
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Precise quantity measurement for materials and labor where applicable.
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View serviceBid Support
Estimate organization and bid preparation support for GCs and subcontractors.
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See how estimating support aligns with other audiences and project types.
FAQ
Questions about this trade
Answers specific to this trade estimating page — without unsupported guarantees.
What documents are required?
Drawings and specifications relevant to this package, plus any addenda or notes that define inclusions and exclusions.
Can this be combined with other trades?
Yes. Related trades can be packaged together when you want coordinated quantities across connected scopes.
Is pricing always included?
Not automatically. You can request a quantity takeoff only, a cost-backed estimate, or both depending on how your team prices work.
What if drawings are incomplete?
Incomplete areas are documented with assumptions or open items rather than silently filled in.