ALZA Development

HORIZON VIEW · ROOF REVIEW

The roof, layer by layer.

Explore the roof assembly, source specifications and planning allowance.

ASSEMBLY VIEW
SHOW LAYERS
CAMERA
Drag to orbit · Scroll or pinch to zoom

Loading the roof view…

Layer thicknesses and separation are exaggerated; nominal roof levels and drainage symbols are for coordination, not field dimensions.

01 / SPECIFY

What the plans call for.

Check the material, assembly and drawing reference together.

Roof specifications and drawing references
ElementSpecified assembly / requirementSourceStatus

02 / DEFINE THE SCOPE

Price the whole roof package.

Use these boundaries when requesting proposals and coordinating adjoining trades.

03 / ESTIMATE

A visible pricing basis.

Planning allowances for the roofing package.
Confirm scope and quantities with trade proposals.

Low planning allowance—

Favorable scope and procurement assumptions

High planning allowance—

Higher-cost installation and detail assumptions

Roof planning cost breakdown
Scope & pricing basisQuantity / unitLowBaseHigh

Scope carried elsewhere

    Pricing qualifications

      Planning figures are not contractor quotes. Reconcile this breakdown with the existing roof allowance; do not add it twice. The original project estimate is not automatically revised by this review.

      04 / CLOSE THE SCOPE GAPS

      Resolve before buying or covering.

      A missing detail or unpriced interface is a coordination item; it is not automatically an added charge.

      SOURCE DOCUMENTS

      Return to the drawings.

      Review the current coordinated architectural, structural, plumbing, energy and manufacturer documents before release. This model is a scope illustration, not a construction takeoff or shop drawing.