British Columbia, Canada
Lower Mainland
Business Days 8 AM – 5 PM
Strata Building Siding, Flashing & Building-Envelope Services in Vancouver and the Lower Mainland
Exterior siding, flashing, building paper and window interfaces all play an important role in protecting a strata building from rain, moisture and air leakage.
At Northstrata Construction, we provide localized siding and flashing repairs, replacement and installation for strata properties, multi-family buildings, property managers and strata corporations. Our work can range from repairing localized deterioration and water-ingress areas to installing siding, flashing, building paper and window air-sealing components as part of new construction or exterior repair projects.
Our focus is practical: identify the problem, determine the required scope of work, and provide durable repairs using appropriate materials and installation methods.
Our Siding & Flashing Services
Siding Installation and Replacement
We install and replace a range of exterior siding materials, depending on the building design and project requirements, including:
- Vinyl siding
- Fibre-cement siding
- Wood siding
- Siding replacement following localized rot repairs
- Siding around windows, doors and building penetrations
- Replacement of damaged or deteriorated siding
- Siding removal and reinstatement for localized building-envelope repairs
Where only a portion of the exterior is affected, localized siding replacement can often be coordinated with other repairs rather than replacing larger areas unnecessarily.
Flashing Repairs and Installation
Proper flashing is an important part of controlling water at windows, doors, wall penetrations, deck-to-wall connections and other transitions.
Our flashing services include:
- Window and door flashing
- Head, sill and jamb flashing
- Wall-to-deck flashing
- Metal flashing installation and replacement
- Flashing repairs associated with siding replacement
- Flashing at building penetrations
- Localized repairs where existing flashing has deteriorated or is improperly installed
- Integration of new flashing with existing building-envelope components
Building Paper and Weather-Resistive Barrier Installation
Building paper and other weather-resistive barrier systems provide an important layer of protection behind exterior cladding.
Northstrata provides installation and localized replacement of building paper and related weather-resistive barrier materials as part of siding and building-envelope work.
Our work can include:
- Installation of building paper / weather-resistive barrier
- Replacement of damaged or deteriorated sections
- Detailing around windows and doors
- Integration with flashing systems
- Sealing and detailing at penetrations
- Preparation of wall assemblies before siding installation
The specific membrane or building-paper product should be selected based on the wall assembly, project specifications and applicable building-code requirements.
New Construction – Air Tightness, Window Sealing & Building-Envelope Detailing in British Columbia
Modern BC construction places increased importance on controlling air leakage and moisture movement through the building envelope.
For new construction, the exterior wall assembly must be designed and constructed as a coordinated system. Siding alone does not provide the building’s complete air- or water-control layer.
Depending on the building design, the exterior wall assembly may incorporate:
- A continuous air-barrier system
- Weather-resistive barrier / building paper
- Exterior sheathing
- Window and door flashing
- Compatible tapes and sealants
- Insulation
- Exterior cladding
- Properly detailed penetrations and transitions
Air-Tightness Requirements
For new construction in British Columbia, applicable air-leakage and energy-performance requirements depend on factors such as the building type, size, applicable BC Building Code requirements, energy-compliance pathway and project specifications.
Air-tightness is particularly important at transitions and penetrations, including:
- Windows and doors
- Wall-to-wall transitions
- Floor-to-wall transitions
- Roof-to-wall transitions
- Electrical and mechanical penetrations
- Service penetrations
- Building corners
- Changes in materials
A building can have high-quality siding and still experience air leakage if the air-barrier system and its transitions are not properly detailed and installed.
For projects where air-tightness testing is required, the installation of the air-barrier system and associated detailing should be coordinated with the building-envelope design and the requirements established by the project professionals.
Specialized Window Air-Sealing & Exterior Tape Installation
Northstrata provides specialized installation of exterior window tapes and compatible air- and weather-sealing products as part of new construction and building-envelope repair work.
Our work can include:
- Exterior window perimeter taping
- Window-to-wall membrane transitions
- Sealing window openings to the surrounding wall assembly
- Installation of compatible self-adhered flashing membranes and tapes
- Detailing at window corners
- Integration with building paper / weather-resistive barriers
- Sealing around selected penetrations and transitions
- Preparation for subsequent siding installation
The correct tape or membrane should be selected based on the specific window, substrate, building-paper or WRB system and manufacturer’s installation requirements. Compatibility between materials is important for long-term performance.
Recommended Materials
There is no single siding, tape, flashing or building-paper product that is appropriate for every strata building.
Material selection should consider:
- Existing wall assembly
- New construction requirements
- Building-envelope design
- Exposure to rain and wind
- Substrate condition
- Compatibility between membranes and tapes
- Window manufacturer’s requirements
- Siding manufacturer’s installation requirements
- Applicable BC Building Code requirements
- Project specifications
For air-sealing and window detailing, we recommend using manufacturer-approved, compatible systems rather than mixing unrelated products.
For example, a window installation may require coordination between the window manufacturer’s flashing requirements, the project’s weather-resistive barrier, self-adhered flashing tape, sealants and exterior cladding.
Siding and Building-Envelope Repairs for Existing Strata Buildings
Older strata buildings can develop localized deterioration around windows, decks, siding joints, flashing and other exterior transitions.
Our localized repair work may include:
- Rot around windows
- Deteriorated wall framing
- Damaged siding
- Failed or deteriorated flashing
- Water-damaged sheathing
- Window-to-wall interface repairs
- Deck-to-wall transition repairs
- Localized building-paper replacement
- Replacement of deteriorated exterior trim
- Reinstallation of siding following repairs
- Localized waterproofing and moisture-control work
Where concealed deterioration is suspected, the repair process may begin with a localized exploratory opening to determine the actual condition behind the exterior finishes.
Inspection Reports and Strata Council Approval
For strata properties, exterior repairs often require coordination between the Strata Council, strata manager, property manager, owners and contractors.
Northstrata can assist with the initial site evaluation and provide documentation describing observed conditions and recommended repair work.
Where appropriate, our inspection documentation can include:
- Observed conditions
- Areas requiring further investigation
- Recommended repair approach
- Proposed scope of work
- Photographs
- Access requirements
- Recommended sequencing
- Budgetary or quotation information
Where building-envelope engineering, design or professional review is required, we can coordinate our construction work with the appropriate qualified building-envelope professional.
Cost and Consultation
The cost of siding, flashing and building-envelope repairs varies depending on:
- Size and location of the repair
- Accessibility
- Existing siding and wall construction
- Extent of concealed deterioration
- Type of siding and flashing
- Window and door conditions
- Required building-paper or membrane work
- Trim, soffits and fascia
- Scaffolding or access requirements
- Whether exploratory openings are required
Northstrata can first assess the visible conditions and help determine whether a localized repair, exploratory opening or larger investigation is appropriate.
A Practical Approach to Strata Exterior Repairs
At Northstrata Construction, we understand that strata repairs need to be approached carefully.
Our goal is to provide practical recommendations, clear communication and quality workmanship while coordinating the work with strata managers, property managers, councils and owners.
From localized siding and flashing repairs to window air-sealing, building-paper installation and exterior cladding work, we focus on the specific area requiring attention and the surrounding building-envelope details that affect its performance.