Condo Flooring in Waterloo Region: Sound Ratings, Underlay and Board Approval

In a house, the floor is your decision. In a condo, it is partly your neighbours' too. Most condo corporations control what can go under a hard floor, because footsteps on a bare floor carry straight into the unit below. Get approval first and the rest of the job is simple.

Start with the rules

Before you choose a colour, ask the property manager for three things:

• The flooring rule or bylaw. Many condos set a minimum sound rating for hard flooring, or name approved underlays.
• The alteration request form. Most buildings want written approval before any hard floor goes in, and some require it even for replacing carpet with carpet.
• Work rules. Permitted working hours, elevator booking, where to park and unload, and how construction waste must leave the building.

Skipping approval is expensive. A board can require a non-compliant floor to be removed, at the owner's cost, after a noise complaint from below.

Sound ratings in plain language

Condo rules usually quote two numbers. Both are measured on a full floor assembly, meaning the concrete slab, the underlay, the flooring and the ceiling below. Higher is quieter for both.

The building code sets a minimum of 50 for both between units. Many condo corporations ask for more, often in the mid 50s or higher for impact noise. Your building's rule is the number that matters.

The important point: the underlay does most of the work. The same plank can pass or fail depending on what goes under it. When you compare products, ask for the tested rating of the plank and underlay together, on a slab similar to your building's.

Which floors suit a condo

Vinyl plank (SPC) with an acoustic underlay

The most common choice. It is waterproof, floats over the concrete with no nails or glue in the slab, and is thin enough to clear doors and appliances. Many SPC planks come with an attached pad. Check whether your building accepts the attached pad alone or wants a separate acoustic underlay as well.

Laminate with a premium underlay

Laminate is harder and can sound hollow underfoot without a good underlay. Over a dense rubber underlay it performs well and gives a more convincing wood look. Our premium rubber underlay is $0.60 per square foot, installed.

Engineered hardwood

Usually floated or glued over an approved acoustic membrane. It needs steady humidity, which suits most condos because the building controls the heating and the units are well sealed.

Tile

Tile carries impact noise well, which is a drawback here. In condo bathrooms and kitchens it normally goes over an acoustic membrane designed for tile. Ask the board before you plan tile in a living area.

Carpet is the quietest floor of all and rarely needs approval. Many owners keep carpet in bedrooms and choose hard flooring for living areas.

Building logistics

• Book the elevator for delivery and for the removal of the old floor. Flooring arrives on pallets, and a 700 square foot condo is roughly 30 to 40 boxes.
• Let the material acclimate in the unit for the time the manufacturer specifies before installation.
• Expect concrete work. Condo slabs are rarely flat enough for click flooring straight out of construction. Self-levelling compound is billed by the bag actually used.
• Mind the transitions. New flooring at the entry door must meet the corridor neatly, and the door to the hallway may need to be trimmed.

What to send the board

A complete request is approved faster. Include:

1. The product name and the specification sheet for the flooring.
2. The underlay specification sheet showing its tested IIC and STC ratings.
3. A simple floor plan marking the rooms being changed.
4. The installer's company name and proof of liability insurance.
5. The proposed dates and working hours.

Common questions

Do I need condo board approval to change my flooring?

Usually, yes, for any hard floor. Most condo corporations require a written alteration request and set a minimum sound rating for the floor and underlay. Ask your property manager for the rule before you buy.

What do IIC and STC mean?

IIC measures impact noise such as footsteps. STC measures airborne noise such as voices. Higher numbers are quieter. Both are tested on the full assembly, so the underlay matters as much as the plank.

What is the best flooring for a condo?

Rigid-core vinyl plank over an approved acoustic underlay suits most condos. It is waterproof, floats over concrete and is thin enough to clear doors. Always confirm the tested sound rating meets your building's rule.