flexiblefullpage - default
interstitial1 - interstitial
Currently Reading

Benefits of Continuous Exterior Insulation

billboard -
Model ReModel

Benefits of Continuous Exterior Insulation

September 22, 2022
continuous exterior insulation
Symbi Homes designed a minimalist window and door trim profile that extended the depth of the exterior casings by 2.75" to allow for the additional thickness of exterior insulation and a rainscreen gap behind their fiber cement lap siding.

Continuous exterior insulation is a newer, popular way to support optimal thermal and moisture protection for new builds, additions, and some renovation projects. Model ReModel 2022’s builder Symbi Homes will follow the same high performance building method for their net zero in-law suite addition.

Symbi installed a continuous layer of R-5 rigid polystyrene foam on top of a Tyvek water resistant barrier across all exterior walls. When added to their R-21 Greenfiber spray-applied cellulose on the interior, the unit now boasts a super-efficient R-26 wall assembly.

So what makes exterior insulation so special?

Because rigid exterior insulation is outside the framing members, it can wrap continuously around a building (with the exception of window and door openings) unimpeded by wall studs. Traditional lumber is notoriously low in R-value (about R-1 per inch), and therefore diminishes the thermal protection in a typical wall assembly. 

Second, exterior insulation adds another layer of protection around the entire shell of the home. In warm climates, a foil-faced exterior foam can prevent solar heat gain from entering the building. In cold climates, a rigid polystyrene foam can help insulate the exterior sheathing of the house, preventing condensation on the inside.

Click here to read the full article on Model ReModel's project site.


Related Stories

Preparing as a Remodeler for the Inflation Reduction Act

Since the recent passage of the Inflation Reduction Act (IRA), the green building industry has been buzzing with enthusiasm for the more than $50…

Why Blow-In Cellulose Insulation?

Hear why the Model ReModel contractor chose blow-in cellulose and watch the installation

3 Tips for Rough-In Photos

These three quick tips will maximize the usefulness of your rough-in images, ensuring they're helpful for years to come

To Vent or Not to Vent, Part 2: The Decision

Symbi Homes, the Model ReModel 2022 contractor, has decided on whether or not to vent the 800 square foot in-law suite addition

Achieving Net Zero Energy at Model ReModel

The 19th-century Victorian and new accessory dwelling unit boast impressive HERS measurements

Sealing Up the Windows at Model ReModel 2022

Symbi Homes VP Matt Kulp shares a peek into waterproofing the Model ReModel windows using Titebond.  Tip: Kulp doesn't seal the bottom to ensure…

Solar Power By the Numbers

Model ReModel 2022 maxes out its solar potential and saves big—see what homeowners will expect to pay

Combining Historic with Modern Aesthetics at Model ReModel

The Model ReModel attached ADU will feature a contemporary, clean look, balancing out the main home's Victorian style

Windows Go In at Model ReModel 2022

Symbi Homes selects custom black windows for its healthy, modern accessory dwelling unit

A Contractor’s Tips for IKEA Kitchen Shopping

Our Model ReModel remodeler shares her pro tips for shopping for IKEA kitchens

boombox1 -
native1 -

More in Category

native2 -
halfpage1 -