How do I apply an acrylic stucco finish to an ICF?
Acrylic stucco is a thin coat finish which can be directly applied to the EPS insulation on the exterior face of the ICF. Fox Blocks provides a continuous EPS surface conducive for the application of acrylic stucco. All acrylic stucco manufactures are familiar with ICFs as a substrate and each have their recommendations for application over ICFs. Note there is a difference in the installation procedures between acrylic stucco and traditional stucco.
What exterior finishes can be used on an ICF?
Fox Blocks are compatible with all exterior finish materials and systems – siding, stucco, masonry veneer, simulated stone, etc. The attachment of certain exterior finishing systems is recommended with exterior grade screws fastened into the exposed or concealed webs.

A Guide to Selecting the Best Siding for Your ICF Wall
Building an ICF house allows for the application of many types of exterior finishes. The choice of exterior finish comes down to your personal decision, cost, and local styles.
Can I leave Fox Blocks forms exposed to ultraviolet rays for an extended period (months)?
Yes, but you will notice a light dusting on the surface and a yellowing discoloration of the forms. This does not indicate any detrimental effects to the ICFs. We do suggest, that if the exterior finish is not going to be installed within around a 3 month period or more, the forms be protected from UV rays by installing a temporary building wrap type material. The powdery film must be removed with soap and water before the application of a synthetic stucco finish or waterproofing membrane.

How to Attach Siding to an ICF Substrate

Fox Blocks Compact
Fox Blocks Compact offers more economical shipping costs by delivering flat. Ties can then be inserted easily into the panels at the jobsite. This compact product is designed to stack seamlessly with the traditional Fox Blocks line.

Fox Blocks Series
For proven strength and performance, the Fox Blocks Series is the basis for successful foundations, walls and buildings.

Fox Blocks Accessories
Fox Blocks products are complemented by a full line of accessories to make your project’s construction easier. From window and door bucks to the only patented ICF masonry anchor on the market, we have got you covered.

CABELA’S
Constructed during one of the worst winters in over 30 years, having over 8′ of snow fall during the 12 weeks of Fox Blocks construction.

Exterior Foundation Covering Ideas and Designs
A beautifully finished foundation adds more than curb appeal — it protects your home from environmental damage and enhances energy efficiency. Modern homeowners and builders can choose from a variety of exterior covering ideas, from timeless options like brick and stone veneer applied to advanced solutions like Insulated Concrete Forms (ICFs).