Roof Drainage
Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
Showing changes from Rev 5
to Rev 6
in Roof Drainage.
---
title: Roof Drainage
…104 unchanged lines
- "Manufacturer's warranty documentation for roof drains and specialty products"
- "Operation and maintenance data (cleaning intervals, secondary-system inspection)"
−default: [As-built drawings (drain locations, leader routing, invert elevations, deviations), Field test reports for water and air tests, signed, with pass/fail determination, Manufacturer's warranty documentation for roof drains and specialty products, Operation and maintenance data (cleaning intervals, secondary-system inspection)]
+default:
+ - "As-built drawings (drain locations, leader routing, invert elevations, deviations)"
+ - "Field test reports for water and air tests, signed, with pass/fail determination"
+ - "Manufacturer's warranty documentation for roof drains and specialty products"
+ - "Operation and maintenance data (cleaning intervals, secondary-system inspection)"
```
…48 unchanged lines
min: 1
max: 10
− setpoints: [2, 3, 4, 5, 6, 7, 8]
+ setpoints: [1, 2, 3, 4, 5, 6, 7, 8, 10]
default: 4
```
…68 unchanged lines
# Roof Drains {toc}
−## General {toc}
+## Roof drains shall conform to ASME A112.6.4 and shall be of the type, body material, outlet size, and accessory configuration indicated.
−### Roof drains shall conform to ASME A112.6.4 and shall be of the type, body material, outlet size, and accessory configuration indicated.
+## Each drain shall be furnished with a body, a removable dome or strainer, a combination membrane flashing clamp and gravel guard, and the deck-attachment and extension accessories appropriate to the roof assembly.
−### Each drain shall be furnished with a body, a removable dome or strainer, a combination membrane flashing clamp and gravel guard, and the deck-attachment and extension accessories appropriate to the roof assembly.
+## Drain types, sizes, and locations shall be [[drawing: as indicated on the plumbing roof drainage plan and the roof drain schedule]].
−### Drain types, sizes, and locations shall be [[drawing: as indicated on the plumbing roof drainage plan and the roof drain schedule]].
−
## Drain Body Material {toc}
…142 unchanged lines
min: 4
max: 12
− setpoints: [4, 6, 8]
+ setpoints: [4, 6, 8, 12]
default: 4
```
…82 unchanged lines
### Pipe sizes shall be as indicated on the drawings and shall match the sizing calculations.
−### No reduction in pipe size shall be made in the direction of flow.
−
### The Contractor shall verify that the pipe sizes shown comply with the sizing calculations for the design rainfall rate and tributary areas, and shall report any discrepancy to the Engineer of Record before installation.
# Controlled-Flow Roof Drainage {toc}
−## Application {toc}
+## Permitted Use and Structural Precondition {toc}
```datasheet
…24 unchanged lines
# Hangers, Supports, and Expansion {toc}
−## General Requirements {toc}
+## All storm piping shall be supported continuously so that it cannot sag, deflect, or move under the weight of the pipe, the water it carries, and construction loads.
−### All storm piping shall be supported continuously so that it cannot sag, deflect, or move under the weight of the pipe, the water it carries, and construction loads.
+## Piping shall not rely on adjacent pipe, conduit, ductwork, or building insulation for support, and shall not be supported by the roof drain.
−### Piping shall not rely on adjacent pipe, conduit, ductwork, or building insulation for support, and shall not be supported by the roof drain.
+## Hangers and supports shall conform to MSS SP-58 for materials and design and shall be selected and spaced in accordance with MSS SP-69.
−### Hangers and supports shall conform to MSS SP-58 for materials and design and shall be selected and spaced in accordance with MSS SP-69.
+## Field-fabricated hangers are not permitted.
−### Field-fabricated hangers are not permitted.
−
## Maximum Hanger Spacing {toc}
…178 unchanged lines
# Testing {toc}
−## General {toc}
+## The storm drainage piping shall be tested after rough-in is complete and before any piping is concealed by insulation, finishes, or fire-rated construction.
−### The storm drainage piping shall be tested after rough-in is complete and before any piping is concealed by insulation, finishes, or fire-rated construction.
+## No piping shall be covered or enclosed before the applicable test has been completed and accepted.
−### No piping shall be covered or enclosed before the applicable test has been completed and accepted.
+## Tests shall be performed in the presence of the Engineer's inspector and, where required, the building department inspector.
−### Tests shall be performed in the presence of the Engineer's inspector and, where required, the building department inspector.
+## Any portion of the system that shows leakage or loss of test head shall be repaired and re-tested until it demonstrates compliance.
−### Any portion of the system that shows leakage or loss of test head shall be repaired and re-tested until it demonstrates compliance.
−
## Water Test {toc}
…81 unchanged lines
## A system that does not leak but was installed with an undersized or non-independent secondary system, incorrect slopes, or inadequate supports shall be corrected at the Contractor's expense if deficiencies are discovered within the warranty period.
−## The warranty shall not limit the Contractor's obligation to comply with all applicable code requirements and the requirements of this standard. {note}
+## The warranty shall not limit the Contractor's obligation to comply with all applicable code requirements and the requirements of this standard.