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Alta Waterproof Decks
Project gallery

Real projects. Drag to compare.

Every Alta project comes with a before/after comparison. Drag the slider on any project to see the transformation.

01 — Elevated Waterproof Deck Restoration

Restored elevated residential deck with waterproofing system over living space
Deteriorated elevated deck with water damage before restoration
Before
After

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01Waterproofing•Portland, OR

Elevated Waterproof Deck Restoration

Severely deteriorated elevated deck over a living space — water intrusion was damaging the room below. Full structural assessment, framing reinforcement, and a complete Westcoat/TREMCO waterproofing system restored the deck to better-than-new condition.

Materials used

  • •Westcoat ALX waterproofing membrane
  • •TREMCO Vulkem traffic-grade topcoat
  • •Pressure-treated framing reinforcement
  • •Cedar plank finish decking
  • •Code-compliant flashing at terminations

02 — Cedar Deck & Cable Railing Replacement

Newly built cedar deck with stainless steel cable railings
Old rotting cedar deck with broken cable railings before replacement
Before
After

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02Retrofit•Beaverton, OR

Cedar Deck & Cable Railing Replacement

Old cedar deck with failed structure and rotted railing. Complete teardown, new pressure-treated framing, premium cedar decking, and a modern stainless cable railing system.

Materials used

  • •Premium cedar deck boards
  • •Stainless steel cable railing system
  • •Hot-dipped galvanized post anchors
  • •Hidden fastener system
  • •Weather-rated exterior stain

03 — Concrete Patio Waterproofing

Modern concrete patio with decorative waterproof coating
Cracked stained concrete patio with water damage before treatment
Before
After

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03Waterproofing•Lake Oswego, OR

Concrete Patio Waterproofing

Hairline cracks and water pooling on a lakefront concrete patio. After crack repair, we applied a full Westcoat ALX system with decorative quartz for slip resistance and visual appeal.

Materials used

  • •Concrete crack repair mortar
  • •Westcoat ALX base coat
  • •Decorative quartz aggregate broadcast
  • •Polyaspartic topcoat (UV stable)
  • •Anti-slip texture additive

04 — Fiber Cement Siding Replacement

Contemporary home with newly installed fiber cement lap siding
Damaged and faded fiber cement siding before replacement
Before
After

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04Siding•West Linn, OR

Fiber Cement Siding Replacement

Twenty-year-old siding failing at the laps and around penetrations. Removed existing, inspected sheathing, installed new weather barrier, and finished with James Hardie lap siding and trim.

Materials used

  • •James Hardie fiber cement lap siding
  • •Tyvek HomeWrap weather barrier
  • •HardieTrim fiber cement boards
  • •Custom-bent aluminum flashing
  • •Sherwin-Williams Duration paint

05 — New Deck Construction

New deck under construction in framing stage
Old unsafe deck framing exposed showing water damage
Before
After

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05New Build•Gladstone, OR

New Deck Construction

From a tear-out of failed structure to a fully rebuilt, code-compliant deck with integrated waterproofing. Engineered plans, permits pulled, crew-led from start to finish.

Materials used

  • •Pressure-treated 2x10 joists
  • •Simpson Strong-Tie connectors
  • •Galvanized post bases
  • •Westcoat ALX waterproofing
  • •Cedar top decking

06 — Multi-Family Waterproofing

Multi-family residential building with new waterproofed balcony decks
Deteriorated multi-family residential building balconies before restoration
Before
After

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06Commercial•Hillsboro, OR

Multi-Family Waterproofing

HOA-managed multi-family complex with chronic balcony leaks into units below. Phased installation with TREMCO traffic-grade membranes and tenant coordination.

Materials used

  • •TREMCO traffic-bearing membrane
  • •Pedestal paver system (subsurface)
  • •Metal edge termination profiles
  • •Drainage mats and protection boards
  • •Code-compliant fire ratings

07 — Craftsman Cedar Siding Restoration

Recently sided Pacific Northwest craftsman home with fresh cedar lap siding
Old severely damaged cedar lap siding on craftsman home before restoration
Before
After

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07Siding•Sherwood, OR

Craftsman Cedar Siding Restoration

Historic craftsman with failing cedar siding. Removed all old siding, repaired sheathing, installed proper WRB and flashing, then finished with clear-grade cedar and a penetrating stain.

Materials used

  • •Clear-grade cedar lap siding
  • •Stainless steel ring-shank nails
  • •Benjamin Moore Arborcoat stain
  • •Custom cedar corner boards
  • •Proper kick-out flashing at rooflines

08 — Deck Retrofit & Waterproofing

Older residential deck after waterproofing retrofit
Old failing deck with major structural issues before retrofit
Before
After

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08Retrofit•Wilsonville, OR

Deck Retrofit & Waterproofing

An older deck with sound framing but failed waterproofing. Retrofit approach saved the homeowner thousands vs full replacement — added structural reinforcement, new waterproofing, and code-compliant railings.

Materials used

  • •Joist reinforcement brackets
  • •Westcoat ALX retrofit system
  • •New flashing at wall transitions
  • •Code-compliant railing upgrade
  • •Slip-resistant top coat

09 — Hillside Home Waterproofing

Hillside Pacific Northwest home with finished waterproofed deck and valley view
Old hillside home deck with severe water damage before restoration
Before
After

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09Waterproofing•Fairview, OR

Hillside Home Waterproofing

Hillside home with failed deck-to-wall flashing causing water damage to siding below. Full tear-out, proper drainage integration, and a complete Westcoat system — finished with cedar and modern cable rails.

Materials used

  • •Engineered drainage mat
  • •Westcoat ALX full system
  • •Custom metal edge terminations
  • •Cedar plank finish
  • •Cable railing system

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