insulation
Enhance the Appearance, Value and Energy-Efficiency of Your Home

Insulation does a lot of good things when used beneath Alside vinyl siding. It increases the R-value of the siding for improved energy-efficiency. Plus, insulation provides a flatter wall surface so that siding installation can be tighter and more attractive. And it can improve the resale value of your home.
Alside offers a choice of ways to insulate your siding:
The Platinum Series Insulation® line of products delivers energy savings while improving the straightness and appearance of your exterior.
An increasingly popular alternative, Insulated Vinyl Siding features new technologies combining traditional vinyl siding with a precisely contoured insulated underlayment. These products deliver outstanding R-value for energy savings, and provide additional benefits such as straighter course lines and increased impact resistance.
Platinum Series Insulation®
Two Ways to Improve Your Energy-Efficiency
All Platinum Series Insulation® is made from extruded polystyrene foam. When properly installed over old siding, it provides a continuous layer of thermal and air infiltration protection.
Features and Benefits
- Is highly resistant to cracking, denting and tearing
- Helps prevent warping and delamination
- Provides a solid, flat surface for new siding installation
- Does not crumble and clutter the jobsite
- Cuts cleanly and evenly for tighter installation
Platinum Series Fanfold Re-Siding Underlayment
This extruded polystyrene underlayment provides improved R-value and a solid, level base for new siding. A clear plastic film laminate provides strength at the “cut and fold” hinge so that the panel lays flat against the wall.
- Perforations eliminate trapping of water vapor behind the panel
- Highly resistant to cracking, denting and tearing
- Low moisture absorption
- Flexible — bends easily around corners without cracking
- Pre-printed grid lines ensure accurate installation
- Available in 1/4” and 3/8” thicknesses
- Available in 3/8“ thickness with reflective facer to deflect solar energy
Platinum Series Insulation Board with Interlocking Edges
This extruded polystyrene foam insulation board features shiplap edges for a tight fit and improved energy-efficiency – up to 3.8 R-value. The interlocking sheets provide a continuous layer of thermal and air infiltration protection.
- Reduces energy costs
- Resists air and moisture
- Does not hold water
- Retains R-value long-term
- Cuts easily and cleanly
- Doesn’t crumble
- Available in 1/2” and 3/4” thicknesses
Alside Insulated Siding
Your Home’s Most Effective Defense Against Weather & Aging
Alside Insulated Siding is a new, more effective approach to home insulation and siding support. It is manufactured of expanded polystyrene in profiles that precisely fit the contour of the siding panel. It provides exceptional insulating properties, with up to 5 times the R-value of conventional insulation. So you enjoy significantly lower heating and cooling bills. It also keeps your siding looking new by keeping it from sagging, denting or being pulled off the wall by high winds. Plus, it keeps your home quieter. It won’t rattle and provides a barrier against outside commotion. Yet it won’t absorb or retain moisture and can’t contribute to mold growth or “sick home syndrome.”
Homeowners are rapidly discovering that Alside Insulated Siding can help to pay for itself in energy savings and increased home value.
Warranties
Platinum Series Insulation® Warranty
Prodigy® Insulated Siding Warranty
Charter Oak® Energy Elite
CenterLock®