Dryvit Direct-Applied over ICF

The beauty of Dryvit textures and finishes applied directly over the strength and energy efficiency of insulated concrete form (ICF) walls.

Overview 

Dryvit Direct Apply over ICF is a wall system that combines the aesthetic versatility of Dryvit finishes with the resiliency, thermal mass and energy efficiency of Insulated Concrete Forms (ICFs) like those from Nudura®.

Using ICF construction lowers a building’s energy usage and operational costs and enables the structure to withstand winds up to 250 mph (402 kph). With the Direct-Applied system over ICFs, walls can be finished in any combination of Dryvit colors, textures and finishes. 

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FAQs for Finishes over ICF Walls 

Yes, you can install Dryvit EIFS over EPS formwork like Insulated Concrete Forms (ICFs). Use of reinforced base coats and finish directly over the ICFs should consider any exposed ties, irregular and out-of-plane wall surfaces, as well as surface weathering of the EPS.

Base coat materials should not be used to skim irregular surfaces, unless the ICF block is properly sanded to accept the base coat and mesh application. Dryvit has been tested and approved with Nudura Insulated Concrete Forms.

Yes, you can install Dryvit EIFS over Insulated Concrete Forms (ICFs). Use of reinforced base coats and finish directly over the ICFs should consider any exposed ties, irregular and out-of-plane wall surfaces, as well as surface weathering of the EPS foam.

Base coat materials should not be used to skim irregular surfaces, unless the ICF block is properly sanded to accept the base coat and mesh application. Dryvit has been tested and approved with Nudura Insulated Concrete Forms.

For masonry and concrete substrates, a skim coat of base coat (typically Genesis) can be used to fill in rough surfaces and provide a smooth base for finish application. The use of reinforcing mesh is optional but may help hide mortar joint patterns in masonry. Proper surface preparation involves cleaning to remove any efflorescence, dirt or dust. 

The exterior finish on EIFS cladding may look like stucco, but it is a complete system with layers of insulation and reinforcement underneath for energy efficiency and durability. EIFS is also lightweight. Stucco, on its own, does not have insulation and can be heavy, requiring several layers of product to achieve the impact resistance and coverage required. For more about the difference between EIFS and stucco, read this blog post. 

 

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