A custom Flathead Valley home under construction, its walls wrapped in green fluid-applied air and water barrier and its deck waterproofed, overlooking a mountain lake at sunset.

Building Envelope · Waterproofing · Painting

Build it right.
Keep the weather out.


Fluid-applied building envelopes, deck and below-grade waterproofing, and professional painting throughout the Flathead Valley.

406-300-2083

What We Do

Four services, one standard.

Building-envelope waterproofing, deck and below-grade systems, and professional painting for homes and projects across the Flathead.

Fluid-Applied Air & Water Barriers

A continuous membrane applied right over the exterior sheathing, with none of the laps and seams of conventional house wrap.

Air & Water Barriers →

Deck & Balcony Waterproofing

Waterproof systems for walk decks, roof decks, balconies, and other exposed surfaces with living or finished space below.

Deck Waterproofing →

Below-Grade Waterproofing

Foundation and below-grade assemblies protected before they're buried and hard to get back to.

Below-Grade →

Interior & Exterior Painting

Interior and exterior painting for homes and projects, prepped and coated to hold up to Montana exposure.

Painting →

Fluid-Applied Building Envelope

No seams. No laps. One continuous barrier.

Ridgeline installs PROSOCO R-GUARD® Cat 5™ directly over exterior sheathing: one continuous air and water barrier around the structure.

Continuous Coverage

Rolled or sprayed over the sheathing instead of piecing together house wrap.

Details Around Openings

Windows, doors, penetrations, and transitions tie into the same system.

Built for Rough Weather

Made for demanding wind and rain exposure, and goes on damp substrates.

Cat 5 is our preferred system; other fluid-applied air and water barriers are available by project specification.

From the Field

The work before the finished work.

Most of a waterproofing job gets covered up once the finished surface goes on. These are the prep, detailing, and systems that end up behind the walls and under the decks.

Flathead Valley, Montana


Got a project? Let's talk it through.

Waterproofing, decks, below-grade, or painting. New construction or an existing home. Tell us what you're working on.