1240LU25R0016-0001 Attachment 6 Pumphouse Requirements GAOA Sula Housing Water System BNF.pdf
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- Solicitation number
- 1240LU25R0016
- Issued by
-
Department of Agriculture Forest Service
About this file
This document details pumphouse construction requirements for a federal contract opportunity involving water system improvements for the Sula Housing project in the Bitterroot National Forest. The specifications outline a change from a concrete to a wood-framed pumphouse, with precise construction guidelines including a monoslab concrete foundation, specific insulation requirements (R-19 for walls, R-50 for roof), and detailed exterior and interior finishing specifications. Key construction elements include hem fir 2x4 wall framing, ½ inch CDX plywood interior with fiberglass reinforced plastic, OSB plywood exterior with cement board lap siding, and a metal roof. The contractor must submit multiple elements for Contracting Officer (CO) approval, including rafter/truss design, insulation plans, waterproof membrane type, exterior paint colors, and metal roofing details. All construction must conform to the International Building Code, with specific requirements for water supply line penetrations, foundation placement, and overall building specifications.
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Text version
The requirement to provide a concrete pumphouse has been changed to the contractor constructing a wood framed pumphouse. The dimensions and utilities of this constructed building will not be different from what the plans show for the concrete structure.
• Building and construction practices shall conform to the International Building Code.
• The pumphouse shall be built upon a monoslab concrete foundation, also to be constructed by the contractor. The monoslab shall be placed upon a prepared surface described in the plans. The top of the monoslab shall be a minimum of 6 inches from existing ground on the uphill side of the building. A typical drawing of a monoslab has been included as a template for how the monoslab shall be constructed.
• The penetrations through the monoslab for the water supply lines shall be constructed with a 6 inch sch 80 PVC sleeve, to extend 5 ft down and have a long sweep 90 degree elbow so that the sleeve extends 5 feet beyond the edge of the monoslab footprint.
• The vertical walls shall be constructed from hem fir 2x4 boards, 16” o.c. The roof can either be constructed using rafters or with trusses. The rafter / truss design shall be provided by the contractor and submitted to the CO for approval before construction will occur.
• The pumphouse shall have R-19 insulation in the walls and the roof shall have R-50 insulation. The insulation type and quantity plan shall be prepared by the contractor and sent to the CO for approval.
• The interior of the building shall have ½ inch CDX plywood covered by a waterproof sheet membrane. Then embossed fiberglass reinforced plastic (FRP) shall be installed on top of the sheet membrane and finished. The type of embossed FRP and waterproof membrane shall be submitted to the CO for approval.
• The exterior of the pumphouse shall be sheathed with ½ inch OSB plywood and then covered with housewrap. Then the exterior will be sided with a cement board lap siding with composite trim. The reveal for the lap siding shall match the surrounding buildings siding reveal.
• Exterior of building shall be painted to match surrounding buildings. The colors shall be prepared and submitted to the CO for approval.
• The roof shall be composed of 5/8 inch OSB sheathing, with full ice and water shield. Then metal roofing and proper accessories shall be placed. Metal type and color shall be prepared and submitted to the CO for approval.
TREATED PLATE
1/2" X 10" ANCHOR BOLTS 32" O.C. WITH 2" X 2" X 3/16" WASHERSFINAL GRADE
SLOPED 6" IN 10' 6"
18" 3"
12"
6" X 6" W.W.M. 4' CONCRETE SLAB
3 #4 REBAR CONTINUOUS
REBAR LAP REBAR JOINTS 15"
TOP OF REBAR 4" FORM
THE TOP OF CONCRETE
NOT TO SCALE
MONO-SLAB TYPICAL
(LIMITED TO 1008 SF)
jcatanach Cross-Out
| Pumphouse Requirements Attachment.pdf |
| Mono-Slab Requirements.pdf |
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