1 Gang Non-Metallic Vapour Proof Electrical Device Box | British Building Supplies

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BBS 1-Gang Non-Metallic Vapour Proof Electrical Box | Airtight PVC Device Box

Name: BBS 1-Gang Non-Metallic Vapour Proof Electrical Box | Airtight PVC Device Box
Brand: BBS
SKU: 14775816290669
Price: 2.98 CAD
Availability: InStock

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$2.98

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Engineering Highlights

AIRTIGHT VAPOUR SEAL

Features a built-in gasketed flange. Provides a superior air seal against the poly vapour barrier, preventing costly energy loss and moisture infiltration.

LARGE INTERIOR VOLUME

Spacious 20.0+ cu. in. capacity allows for comfortable wiring of dimmers and smart switches without over-crowding conductors.

ASTM E283 CERTIFIED

Meets ASTM E283 air leakage requirements. Fully compliant with the latest Canadian building codes for energy-efficient homes.

Product Details

Specification Item	Technical Data
Gang Configuration	Single Gang (1-Gang)
Internal Volume	20.5 Cubic Inches
Seal Technology	Built-in Poly-Flange with Gasket
Material Grade	High-Density Non-Conductive PVC
Safety Standards	CSA C22.2 No. 18.2 / cULus Listed
Compliance	NBC (National Building Code) Airtight Standard

■
ELIMINATE "POLY BOOTS"
The integrated flange eliminates the need for separate polyethylene vapour boots, drastically reducing the complexity of the sealing process during rough-in.
■
MOISTURE PREVENTION
Prevents condensation from forming behind the box in the wall cavity, protecting the electrical devices and wall insulation from moisture damage.

BBS National Energy Standard

The Industrial Choice for High-Efficiency Exterior Walls.

The BBS 1-Gang Vapour Proof Box is specifically engineered for Canadian residential construction. Designed for use in exterior walls where a vapour barrier is required, this box ensures a seamless, airtight connection that meets the strict energy-saving requirements of NBC and Energy Star standards.

Professional Application Guide

Exterior Wall Rough-In

Mandatory for all electrical devices installed on the building's thermal envelope (exterior walls) to maintain vapour barrier integrity.

Net-Zero Construction

Perfect for Net-Zero and high-performance homes where airtightness (ACH) is the primary metric for energy performance.

Condo/Apartment Units

Used in party walls and exterior-facing units to prevent drafts and improve the sound dampening between residential spaces.

Installation Engineering Checklist:

■ Vapour Tape Seal: For maximum airtightness, always apply approved acoustic sealant or vapour tape between the box flange and the poly barrier.
■ Cable Entry: Use the built-in airtight entry ports. Do not cut large holes that compromise the airtight seal around the NMD90 wire.
■ Mounting Precision: Ensure the flange sits perfectly flat against the stud face to allow the vapour barrier to lay smoothly over it.

Frequently Asked Questions

Why do I need a "Vapour Proof" box instead of a standard one?

Standard boxes allow air to leak through the wall, causing drafts and condensation. Vapour proof boxes seal the hole, keeping your home warm and protecting the wall from mold.

Is this box CSA approved for BC and Ontario?

Yes. It is fully **cULus** and **CSA certified**, meeting all electrical and building code requirements for every province in Canada.

Do I still need a "poly boot" or "poly hat"?

No. The built-in flange and gasket replace the need for traditional polyethylene vapour boots, saving you both time and material cost.

National Trade & Contractor Desk

Supplying a high-performance housing development or an energy-efficient apartment project across Canada? Access specialized bulk pricing and nationwide logistics.

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We appreciate your business and are committed to providing you with exceptional service and timely delivery. Please review the shipping information below for your order.

Order Processing Time:

Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.

Shipping Methods:

Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)

Packaging:

Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.

Shipping Rates:

Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.

Order Tracking:

Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.

International Shipping:

We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.

Frequently Asked Questions

Is the BBS 1-Gang Non-Metallic Vapour Proof Electrical Box | Airtight PVC Device Box certified for use in Canada?

Yes, the BBS 1-Gang Non-Metallic Vapour Proof Electrical Box | Airtight PVC Device Box is cETLus or CSA certified, ensuring it meets the strict electrical safety standards required by the Canadian Electrical Code for residential and commercial projects.

Do you offer wholesale pricing for electrical contractors?

Absolutely. As a dedicated building supply wholesaler in Burnaby, we provide tiered pricing for bulk orders. Please contact our trade desk for a custom quote on large volume electrical supplies.

Is this electrical box vapour proof?

Our premium vapour-proof boxes feature integrated gaskets and sealing rings to prevent air leakage, making them ideal for exterior walls and maintaining the home's air barrier integrity.