Field notes

Spec-literate guides, written crew to crew

Practical reads on substrates, waterproofing, and uncoupling — the decisions that keep wet-area jobs passing inspection and staying on schedule. No fluff, no homeowner hand-holding.

Featured · SubstratesRoom fully sheathed in gray Streamline Essentials backer board with taped white seams, ready to tile
Substrates

Backer board vs. cement board: which substrate to spec

Foam backer changed the math on wet-area installs — but cement board still earns its spot on the truck. Here's the trade-to-trade breakdown on waterproofing, weight, handling, and where each substrate actually belongs.

May 20, 2026 · 6 min read
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Latest posts

From the line card to the job site

Stack of Streamline Essentials foam backer boards beside cement board for comparison
Substrates

Backer board vs. cement board: which substrate to spec

Waterproofing, weight, cut method, and install speed — a no-nonsense comparison so you spec foam or cement for the right surface, every time.

May 20, 2026 Read
Marble bathroom with a blue uncoupling and waterproofing mat laid across the floor before tile
Waterproofing

How to waterproof a shower the code-aligned way

Membrane, sealed seams, treated corners, and a flood test — the sequence that builds a wet-area assembly your inspector signs off the first time.

May 6, 2026 Read
Large-format tile being set over a blue uncoupling mat on a combed thin-set bed
Underlayment

Choosing the right uncoupling membrane for large-format tile

When decoupling matters, how the mat prevents lippage and cracking, and matching the membrane to plywood, slab, or radiant-heated substrates.

Apr 22, 2026 Read

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