Question 1

How do Ottawa contractors test for trapped moisture in an older EIFS installation?

Accepted Answer

Moisture Detection in Older EIFS Systems

Ottawa contractors use several proven methods to detect trapped moisture in older EIFS installations, with infrared thermography being the most common and effective approach. During Ottawa's heating season (October through April), thermal imaging cameras can clearly identify areas where trapped moisture creates temperature differentials in the wall assembly. Wet insulation shows up as cooler areas on the thermal image because water conducts heat away fro

Question 2

Can stucco and continuous insulation together meet Ottawa's R-value requirements for walls?

Accepted Answer

Yes, stucco and continuous insulation can absolutely meet Ottawa's R-value requirements for walls, and this combination is becoming increasingly popular for both new construction and deep energy retrofits in our climate. The key is understanding how different stucco systems integrate with continuous insulation to achieve the required thermal performance.

Combining Stucco with Continuous Insulation

Ottawa falls under Ontario Building Code climate zone 6, which requires a minimum R-20 for above

Question 3

What is the difference between lamina and panel EIFS systems for Ottawa buildings?

Accepted Answer

Lamina and panel EIFS systems differ primarily in their insulation installation method, which significantly impacts performance, cost, and application suitability for Ottawa's extreme climate conditions.

Lamina EIFS uses continuous rigid foam insulation boards that are mechanically fastened or adhesively attached directly to the substrate wall. The insulation boards are typically 1 to 4 inches thick and cover the entire wall surface in a continuous layer. Over this insulation, contractors apply

Question 4

How does adding stucco cladding affect a home's energy rating in Ottawa?

Accepted Answer

Adding stucco cladding can significantly improve your home's energy rating in Ottawa, particularly when combined with continuous exterior insulation systems. The impact depends heavily on which type of stucco system you choose and how it integrates with your existing building envelope.

Energy Performance Benefits of Different Stucco Systems

EIFS (Exterior Insulation and Finish Systems) provides the most dramatic energy improvement for Ottawa homes. By adding 2 to 4 inches of continuous rigid