Commercial, Strata & Residential Serving Vancouver, North Van, West Van, & Burnaby

Resources & Maintenance Blog

Written by: Allweathercoating Technical Team
SPRAT- & IRATA-certified · 40+ years Metro Vancouver building envelope experience ·

Helpful articles, guides, and checklists compiled by our building maintenance specialists to help property managers and strata councils protect their properties.

Concrete Restoration: the strata & commercial guide

What causes spalling and rebar corrosion on Metro Vancouver concrete buildings, how repairs are scoped to CSA S448.1, when to repair versus replace, and how a BC strata runs the project.

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Balcony Waterproofing: the strata & commercial guide

Which membrane systems hold up on the BC coast, how to read the signs of a failing deck, and when to repair, overlay, or strip back to the slab and replace.

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BC Strata Building Envelope Guide

Depreciation reports, BECA assessments, who pays for balcony membranes — practical guidance for strata councils and property managers navigating the BC Strata Property Act.

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Exterior Coatings: elastomeric vs. acrylic for stucco & concrete

Which coating system lasts in BC's coastal climate, when to use elastomeric vs. acrylic, and why film build matters more than the paint brand.

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Building Envelope: repair, recladding & roofing decisions

Eight either-or decisions strata councils and building owners face on the BC coast: repair vs reclad, torch-on vs single-ply roofing, membrane vs sealer, and who to hire. Each guide gives the local building science and a decision framework, not a sales pitch.

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Flat Roof Systems: membranes, drainage & replacement decisions

Torch-on, TPO, PVC, SPF, and green roofs compared for BC strata and commercial buildings, plus why drainage matters more than the membrane, and how to read a roofing bid before your council approves it.

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Parkade Waterproofing: membranes, joints & slab protection

Polyurethane and PMMA traffic membranes, expansion joints, crystalline waterproofing, and cathodic protection compared, plus how to tell a recoat from a structural repair before the bids come in.

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Sealant & Caulking: polyurethane vs. silicone for building envelopes

Which product goes where, how to read failure signs before water gets in, and what a full sealant replacement program looks like on a Metro Vancouver high-rise.

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Glass Canopies & Awnings: cleaning, staining, leaks & repair

Why entrance canopy glass soils differently from windows, which stains come off and which never will, the three causes of a canopy leak, and how to buy a clean that does not open the wall joint above your door.

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Rope Access for High-Rise Buildings: Vancouver contractor guide

How rope access compares to swing stages and scaffolding — cost, safety certification, WorkSafeBC requirements, and when each access method is the right call.

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Building Envelope Repair Cost: Vancouver 2026

Real 2026 cost ranges for sealants, balcony membranes, parkade coatings, concrete repairs, and leak investigations — from the contractor's own pricing.

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Rainscreen Systems: how Vancouver buildings shed rain

How a rainscreen assembly works, how to tell if your building has one, the flashing details that fail, and when a staged remediation is honest versus a full wrap.

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Water Ingress: finding where the rain gets in

The signs of water ingress ranked by urgency, why leaks show up far from their source, and how window, wall, and roof-to-wall leaks each get traced on a Metro Vancouver building.

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Building Drainage: roof drains, scuppers & gutters

Every drainage path on a strata or commercial building, how each one clogs, what ponding patterns mean, and the seasonal maintenance calendar that keeps water moving.

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Storm Season Readiness: atmospheric rivers & wind-driven rain

Preparing a building before the fall storms, triaging damage after them, temporary repairs that do not trap water, and how to document everything for the strata record.

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Condensation & Damp: when the moisture comes from inside

Telling condensation from a leak, why closet corners go black first, what failed window seals look like, and the ventilation habits that keep Vancouver suites dry in winter.

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Educational Resource

Pressure Washing vs Soft Washing Building Exteriors in Metro Vancouver

High-pressure water strips algae off a Coquitlam wall fast — and can blast the coating, sealant, and concrete off with it. When soft washing is the right call, and why surface prep before coating decides everything.

Read Full Article Sep 9, 2026
Educational Resource

Building Envelope Warranty Claims for BC Strata Corporations

When a New Westminster strata finds an envelope defect, the first question is who pays — the 2-5-10 warranty or the owners. How to tell a warranty defect from maintenance, document it, and meet the deadlines that decide the answer.

Read Full Article Sep 7, 2026
Educational Resource

Metal Flashing Detail Failures in BC Rainscreen Walls

Good cladding doesn't keep a Burnaby wall dry — flashing does. Reverse laps, missing end dams, and bad transitions are why rainscreen buildings still leak, and why the metal almost nobody looks at deserves the attention.

Read Full Article Sep 5, 2026
Educational Resource

Cathodic Protection for Chloride-Contaminated Parkades in Vancouver

Road salt drives chloride deep into Surrey and Vancouver parkade slabs, and patch repair alone won't stop the corrosion it starts. When cathodic protection makes sense, how it works, and what it costs you to ignore it.

Read Full Article Sep 3, 2026
Educational Resource

Swing Stage and Street Use Permits for Downtown Vancouver Facade Work

Before a swing stage touches a downtown Vancouver tower, the City wants a street use permit and a pedestrian protection plan. Here's what that involves, why it delays projects, and how rope access sidesteps most of it.

Read Full Article Sep 1, 2026
Educational Resource

Concrete Carbonation on Coastal BC Buildings

Not all rebar corrosion is salt. On older Victoria concrete buildings, carbonation quietly lowers the concrete's pH until the steel loses its protection.

Read Full Article Aug 30, 2026
Educational Resource

Vapour Barrier Failure and Interstitial Condensation in BC Walls

The water staining a Coquitlam condo's interior wall isn't always a leak. Sometimes the wall makes its own water — warm air condensing inside the cavity.

Read Full Article Aug 28, 2026
Educational Resource

Corroding Balcony Guardrail Anchors on Vancouver Strata Towers

The rust staining at the base of a balcony railing post in Burnaby isn't cosmetic — it's a corroding anchor pushing the concrete apart, and a safety problem.

Read Full Article Aug 26, 2026
Educational Resource

Field Sealant Adhesion Testing on BC Restoration Projects

A sealant that won't stick is a leak waiting to happen. Why a hand pull test on a Surrey restoration project catches the failure before it ever ships.

Read Full Article Aug 24, 2026
Educational Resource

Brick Masonry Repointing on Vancouver Heritage and Older Buildings

Use the wrong mortar to repoint a heritage brick building in New Westminster and you'll spall the brick faces within a few winters. Why hardness matters.

Read Full Article Aug 22, 2026
Educational Resource

Roof Drain and Scupper Maintenance on Vancouver Strata Flat Roofs

A clogged roof drain is the cheapest leak you'll ever ignore — until ponding water destroys the membrane. How Burnaby strata roofs fail at the drains.

Read Full Article Aug 20, 2026
Educational Resource

Expansion Joint Failure Between Precast Concrete Panels in Vancouver

The joints between precast panels on a Vancouver high-rise move constantly, and sealant is the only thing keeping rain out. Why they fail and how to fix them.

Read Full Article Aug 18, 2026
Educational Resource

Cold-Weather Exterior Restoration in Coastal BC: What Works in Winter

Winter restoration on a West Vancouver building is possible, but coatings, sealants, and concrete have temperature and dew-point limits. How crews manage it.

Read Full Article Aug 16, 2026
Educational Resource

Building Envelope Engineer vs Contractor: Roles on a BC Strata Project

On a Coquitlam strata restoration, the engineer specifies and the contractor builds. Who does what, who warranties what, and why you need both on a project.

Read Full Article Aug 14, 2026
Educational Resource

Efflorescence on Vancouver Concrete Walls: Causes and Fixes

The white salt bloom on a North Vancouver concrete wall is a map of water moving through the structure. What it signals and how to fix the real cause.

Read Full Article Aug 12, 2026
Educational Resource

When to Recoat a Parkade Traffic Membrane in Vancouver

Deferring a parkade traffic-coating recoat is how a Richmond strata turns a maintenance bill into a slab replacement. How to read wear before it's too late.

Read Full Article Aug 10, 2026
Educational Resource

Envelope work on a low rise: what changes when the building is three storeys

The physics of a leaking building are the same at three storeys as at thirty. Access, occupancy and sequencing are not. What differs on low rise envelope work.

Read Full Article Aug 8, 2026
Educational Resource

EPDM vs TPO Flat Roof Membranes for BC Strata Buildings

Choosing between EPDM and TPO single-ply membranes on a Burnaby strata low-rise comes down to seams, reflectivity, and how each ages in Pacific NW rain.

Read Full Article Aug 8, 2026
Educational Resource

Why Gutter and Scupper Cleaning Belongs in Your Rope Access Maintenance Visit

Blocked gutters, scuppers, and roof drains send water where it was never meant to go — usually into the parapet or down the face of the building. Why this belongs in the same rope access visit as window cleaning and sealant inspection, not a separate call.

Read Full Article Aug 6, 2026
Educational Resource

Window Perimeter Sealant Failure on Vancouver Curtain Wall Towers

The sealant around window and curtain wall joints is the first line of defence against wind-driven rain on a Vancouver tower — and the first thing to fail. How to spot it, why it happens, and what restoration actually involves.

Read Full Article Aug 6, 2026
Educational Resource

Sealant Removal vs Cap-Bead Repair: When to Use Each on BC Buildings

Cap-bead sealant repair is faster and cheaper than full removal and replacement — but it's also the most common reason re-caulking work fails within two years. When each approach makes sense, what the actual labour difference is, and how to specify the right approach in your tender.

Read Full Article Aug 4, 2026
Educational Resource

Engineered Stone and Composite Cladding Panel Failures on Vancouver Towers

Composite panel cladding — engineered stone, fibre cement, aluminum composite — has dominated Vancouver tower facades since 2005. The failure modes are now becoming visible as the first generation reaches 15-20 years in service. What property managers need to know about inspection, repair, and replacement.

Read Full Article Aug 2, 2026
Educational Resource

Building Envelope Due Diligence for Vancouver Condo Buyers

Before you write an offer on a Metro Vancouver condo, the building envelope is the single biggest source of surprise costs. What to ask, what documents to read, and what red flags to walk away from — written for buyers, not for engineers.

Read Full Article Jul 31, 2026
Educational Resource

Spray Polyurethane Foam Roofing on BC Commercial Buildings: When It Makes Sense

Spray polyurethane foam (SPF) roofing is well established in colder North American climates but used sparingly in coastal BC. Where it works, where it fails, and how it compares to the membrane systems that dominate Metro Vancouver flat-roof installations.

Read Full Article Jul 29, 2026
Educational Resource

Vinyl Deck Membrane vs Liquid-Applied Membrane for BC Balconies

When BC strata balconies need new waterproofing, the choice between vinyl deck membrane and liquid-applied polyurethane membrane drives both upfront cost and long-term maintenance. A side-by-side comparison covering lifespan, repair, walking surface, and where each system makes sense.

Read Full Article Jul 27, 2026
Educational Resource

EIFS vs Traditional Stucco for BC Multifamily Buildings

Exterior Insulation and Finish Systems (EIFS) and traditional three-coat stucco look similar from the street but fail in completely different ways. What BC strata councils and developers need to know before specifying, repairing, or buying a building with either system.

Read Full Article Jul 25, 2026
Educational Resource

Stucco Crack Repair on Vancouver Low-Rise Buildings Before the Wet Season

Hairline cracks in stucco on a Lower Mainland low-rise turn into wet-season leaks if they're not sealed in late summer. What cracks matter, what to ignore, and how the repair is actually done before October.

Read Full Article Jul 23, 2026
Educational Resource

Spring and Fall Building Maintenance Checklist for Vancouver Strata Councils (2026)

A dual-season checklist for Vancouver strata councils and commercial property managers — spring post-winter recovery (April–May) and fall pre-storm prep (August–September). Covers balcony membranes, window sealants, parkade drainage, roof anchors, and concrete condition.

Read Full Article Jul 21, 2026
Educational Resource

Atmospheric Rivers and Your Building Envelope in Metro Vancouver

Atmospheric rivers drive extreme wind-driven rain at Metro Vancouver buildings. Here is how the storms find envelope weaknesses and what to check before the next one.

Read Full Article Jun 29, 2026
Educational Resource

Roof Anchor Recertification: WorkSafeBC Rules for Vancouver High-Rises

BC roof anchors for rope access must be engineer-certified and inspected yearly. Here is what building owners in Metro Vancouver must keep on file to stay compliant.

Read Full Article Jun 27, 2026
Educational Resource

Elastomeric Wall Coatings on Vancouver Concrete Towers: When They Work

Elastomeric wall coatings bridge cracks and shed rain on Metro Vancouver concrete towers — but only when the substrate is dry. Here is when they protect and when they blister.

Read Full Article Jun 25, 2026
Educational Resource

PMMA vs Polyurethane Traffic Membranes for Vancouver Parkade Decks

Comparing PMMA and polyurethane traffic membranes for Metro Vancouver parkades and balconies — cure speed, service life, cold-weather use, and resident disruption.

Read Full Article Jun 23, 2026
Educational Resource

Silicone vs Polyurethane Sealant for Expansion Joints in BC Buildings

Which sealant belongs in your building's expansion joints? We compare silicone and polyurethane for movement, UV resistance, and coating over on Metro Vancouver towers.

Read Full Article Jun 21, 2026
Educational Resource

Rebar Corrosion and Concrete Delamination in Coastal BC Buildings

Why concrete spalls on West Vancouver and waterfront towers — how chloride and carbonation corrode rebar, the warning signs, and how coastal concrete repair is done.

Read Full Article Jun 19, 2026
Educational Resource

Rainscreen Walls and the Leaky Condo Legacy in Metro Vancouver

Why rainscreen wall design exists in BC, what the leaky condo crisis taught the industry, and how Metro Vancouver towers still depend on it to shed wind-driven rain.

Read Full Article Jun 17, 2026
Educational Resource

The BC 2-5-10 Home Warranty and Your Building Envelope Explained

BC's 2-5-10 new home warranty covers the building envelope for 5 years. Here is what that means for Metro Vancouver strata owners and how it ties to envelope repairs.

Read Full Article Jun 15, 2026
Educational Resource

Coordinating a Strata Exterior Restoration Project in BC

From engineer to permit to resident notice — how a Metro Vancouver strata runs an exterior restoration project, and the BC rules that govern envelope renovations.

Read Full Article Jun 13, 2026
Educational Resource

What a Building Envelope Condition Assessment Covers in BC

A building envelope condition assessment (BECA) tells a Metro Vancouver strata what shape its exterior is really in. Here is what it inspects, tests, and reports.

Read Full Article Jun 11, 2026
Educational Resource

The July 1, 2026 Strata Depreciation Report Deadline in Metro Vancouver

The Metro Vancouver depreciation report deadline of July 1, 2026 has passed. Here is what that means for stratas without a current report, and which building envelope work drives the 30-year reserve forecast.

Read Full Article Jun 9, 2026
Educational Resource

Parkade Slab Restoration in Vancouver: What's Eating Your Concrete From Below

Underground parkades fail from a different direction than balconies — de-icing salt, standing water, and chloride driving corrosion through suspended slabs and columns. Here's how Vancouver parkade restoration actually works.

Read Full Article May 31, 2026
Educational Resource

How Often Should High-Rise Windows Be Cleaned in Vancouver? (2026 Guide)

A guide to scheduling window washes for strata towers and commercial buildings. Learn how marine salt, traffic smog, and forest fire smoke affect glass lifespan, and why bi-annual cleanings prevent permanent mineral etching.

Read Full Article May 30, 2026
Educational Resource

Understanding Strata Balcony Membrane Maintenance & Water Ingress in Vancouver

Strata balcony membranes bear the brunt of Vancouver's intense rain. We review the lifespan of vinyl, liquid polyurethane, and PMMA waterproofing systems, outline maintenance duties under the Strata Property Act, and explain how to prevent moisture damage.

Read Full Article May 30, 2026
Educational Resource

Signs Your Building Needs Sealant Replacement

Don’t wait for suites to leak. Learn how to spot failing window perimeter caulking and expansion joints from the ground, what cracks to watch for, and why polyurethane sealant needs replacement every 8 to 10 years.

Read Full Article May 29, 2026
Educational Resource

What Causes Water Ingress in High-Rise Buildings?

Water ingress can cause major structural damage. We break down the top causes of leaks in concrete structures, from wind-driven rain bypassing failed window perimeters to structural expansion joint tears and cracked stucco.

Read Full Article May 28, 2026
Educational Resource

How Exterior Coatings Protect Buildings in Vancouver’s Climate (2026)

Vancouver’s rain is driven by heavy wind. Discover how elastomeric wall coatings create a breathable waterproof barrier that stretches to bridge concrete cracks, preventing water from seeping into building walls.

Read Full Article May 24, 2026

Protect Your Strata or Commercial Building Today

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