Types of Board
Interra - For Inside
Interra is designed for interior applications, providing excellent thermal resistance and a reflective layer to enhance energy efficiency in walls or ceilings. It improves indoor comfort by keeping heat inside and reducing energy costs.
Exterra - For Outside
Exterra is used for exterior insulation, acting as a continuous insulation layer that prevents thermal bridging. It helps protect the building from heat loss, moisture infiltration, and air leakage, improving overall energy performance and weather resistance.
Subterra - for Below-Slab Usage
Subterra is engineered for below-slab use, offering high compressive strength to withstand heavy loads while insulating the foundation. It enhances moisture protection, reduces heat loss through the ground, and increases long-term energy savings.
Features and Benefits
- 100% recyclable
- Graphite polystyrene (GPS) delivers greater R-values at lower outside temperatures
- Minimizes the energy loss from thermal bridging
- GPS is 100% recyclable and ozone layer-friendly
- Light yet durable — perfect for today’s demanding job sites
Related Products
Exterior Doors
At Glenview Doors, we make a promise to not only help you build doors that are as beautiful as they are strong, but to do so with a process that ensures the professional will be every bit as satisfied as the homeowner.
Exterior Doors
Northwood Doors creates handcrafted, custom entry and interior wood doors guaranteed to enrich the inner beauty and curb appeal of your home. We offer a remarkable variety of colour and model options to ensure you get the design that’s perfect for you and your home.
Exterior Doors
TruStile offers most panel and glass styles in exterior-grade MDF and natural wood. Built with their stile and rail process, exterior doors are backed by a limited lifetime warranty when properly finished and installed with proper overhang protection.
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Why Builders Recommend Allegheny Millwork & Lumber
Our reputation for quality and excellence is why you should choose Allegheny Millwork & Lumber. Our staff is highly knowledgeable and friendly. We will help guide you through the myriad products when you are building or renovating your home.
From building materials to fine finishes, we have you covered. Beautiful doors create a welcoming entrance to your home. Crystalline windows and gargantuan patio doors can grace your property, framing the view and keeping you protected from the elements. Our experts can help you make the decisions when choosing what is right for you. No project is too big or too small. Come see why the best contractors in Pittsburgh have been using Allegheny Millwork & Lumber for the last 40 years.
With over 350 moulding profiles in stock, we can adorn your windows and doors, ceilings, walls, and floors with quality woodwork to put your own stamp on the project at hand. We can also match existing millwork to complete your historical renovation.
Additionally, we will help you design the kitchen of your dreams. We encourage you to make an appointment in our 10,000 square feet design showroom. You can also visit our virtual showroom by clicking on the link to the right We hope to see you soon!
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