Series 3250XTP Project-In Thermal-Strut Windows

Boyd's Series 3250XTP Project-In is a high-performance commercial aluminum thermal-strut window designed to save energy and minimize condensation potential over the life of the building. This inward-opening projected-window system combines an impressive 39mm polyamide thermal strut, a 3.25" main frame depth, a tank sill for increased water performance, and interior glazing for schools, universities, government offices, hospitals, military buildings, and other commercial projects with stringent energy-code requirements.

Engineered to AW-PG80 projected-window requirements, the Series 3250XTP Project-In features .125" structural wall areas, a flush appearance with the interior and exterior main-frame faces when closed, mitered and corner-keyed sash construction, 1" or 1.75" glazing, snap-in glazing beads, and a .5" glass bite. Four-bar friction-hinge and operator options, two rows of weatherstripping, screens, true and simulated muntins, internal blinds or dual glazing, coordinated perimeter accessories, and blast-resistant configurations support demanding energy-conscious new-construction and replacement projects.

Series 3250XTP Project-In Product Details

Key commercial project-in thermal-strut window attributes for product review:

Series 3250XTP Product Data and Downloads

Use the current Boyd resource links below for Series 3250XTP Project-In drawings, guide specifications, installation instructions, accessories, thermal-performance information, the 2030 Challenge case study, and blast review.

When to Use the Series 3250XTP Project-In Window

• Commercial openings requiring inward-projecting operation rather than a side-hinged casement or outward-projecting vent.

• Schools, universities, government offices, hospitals, military buildings, and other projects with stringent energy-code requirements.

• Energy-conscious new-construction or replacement projects seeking a 39mm thermal-strut window designed to reduce frame heat transfer and minimize condensation potential.

• Projects requiring AW-PG80 projected-window performance, a 3.25" tank-sill frame, 15 psf water resistance, and glazing up to 1.75" thick.

• Openings requiring a flush closed-vent appearance, interior glazing, true or simulated muntins, internal blinds or dual glazing, screens, and coordinated perimeter accessories.

• Blast-resistant applications where the exact Series 3250XTP Project-In configuration, glazing, anchorage, opening size, and current supporting documentation match the project requirements.

Choosing a 3250XT Project-In Configuration

You are viewing the standard 3250XTP Project-In projected window. It opens inward but is not the same as the side-hinged 3250XTC casement. Review the related 3250XT configurations below when the project requires outward projection, a historic-replica -G configuration with exterior snap-in muntins, side-hinged casement operation, or a matching fixed unit.

Series 3250XTP Project-In Window Advantages

• 39mm extra-wide polyamide crimped-in-place structural thermal barrier for extremely low listed U-values and improved condensation resistance.

• Published 0.43 U-factor for the standard projected configuration using 0.24 center-of-glass U-factor under NFRC 100.

• Tank sill for increased water performance in the project-in configuration.

• A 3.25" main frame depth with .125" structural wall areas for durability.

• The vent presents a flush appearance with the exterior and interior main-frame faces when closed for a clean, desirable look.

• Interior snap-in glazing accommodates 1" and 1.75" glass configurations with a .5" glass bite.

• Mitered, corner keyed, and crimped sash construction for increased strength; main-frame construction is square-cut and mechanically fastened.

• Four-bar friction-hinge packages can be coordinated with lever-and-cam latches, custodial cam latches, telescoping push bars, or gear-type rotary operators.

• Two rows of weatherstripping support ideal air performance.

• True divided-lite, interior, surface-applied, and historical muntin options, internal blinds or dual glazing, and screens are available.

• Panning, thermally broken receptors, subsills, caulk backers, mullions, snap trims, finishes, and project-specific customization support complex opening conditions.

• Performance Level 10 forced-entry requirements and configuration-specific blast-resistance capabilities support demanding commercial applications.

Common Series 3250XTP Project-In Coordination Items

• Projected operation: Confirm that the schedule requires an inward-opening projected window rather than a side-hinged project-in casement. Coordinate hinge location, operator package, sash projection, hardware reach, opening force, and user access.

• Interior clearance: Review the inward vent path against interior trim, blinds, shades, screens, furniture, casework, occupants, security devices, and maintenance access.

• Tank sill and drainage: Coordinate sill elevation, drainage path, perimeter sealants, flashing, receptors, subsills, panning, adjacent construction, and installation details so the intended water-management approach is maintained.

• Glazing and thermal performance: Confirm complete glass makeup, overall thickness, center-of-glass performance, spacer, safety glazing, coatings, interior glazing access, .5" glass bite, and project-specific U-factor or condensation criteria.

• Muntins and appearance: Coordinate true divided-lite, interior roll-form, surface-applied, or historical muntin construction, grid pattern, profile, finish, and reglazing requirements. Use the -G configuration when exterior snap-in muntins are required.

• Hardware and screens: Select the required lever-and-cam latch, custodial latch, push-bar, or rotary-operator package and coordinate screen type, wickets, hardware clearances, user operation, and cleaning access.

• Blast requirements: Provide the required protection level, threat criteria, glazing, opening size, anchorage, substrate, receptor, mullion, installation condition, and current documentation requirements. Blast availability is configuration-specific.

• Openings and accessories: Verify field dimensions, rough openings, substrates, anchors, panning, thermally broken receptors, subsills, mullions, caulk backers, snap trims, sealants, drainage, finishes, and surrounding construction before release.

What to Send Boyd for a Series 3250XTP Review

Send as much of the following project information as available:

• Project name, location, building type, bid date, construction schedule, architectural drawings, elevations, window schedules, specifications, and opening sizes.

• Confirmation that the opening requires project-in projected operation, along with hinge location, operator or latch package, vent size, inward clearance, screens, user access, and maintenance requirements.

• Glazing makeup, overall thickness, center-of-glass performance, coatings, spacers, safety glazing, internal blinds or dual glazing, muntin construction, grid pattern, and required U-factor or condensation criteria.

• Required AW-PG80, air, water, structural, forced-entry, blast, security, energy-code, and jurisdictional criteria.

• For blast projects, provide threat criteria, protection level, opening sizes, glazing, anchors, substrates, receptors, mullions, and installation conditions.

• Tank-sill, panning, receptor, subsill, mullion, caulk-backer, snap-trim, anchor, sealant, drainage, substrate, installation, finish, and submittal requirements.

Related 3250XT, Project-In, Thermal, and Blast Resources

• Commercial aluminum project-in windows for projected-in and project-in casement comparison and selection guidance.

• 3250XT high-performance thermal-strut windows for fixed, projected, casement, standard, and historic-replica configuration review.

• Blast-resistant commercial aluminum window systems for configuration-specific performance and documentation review.

• Commercial window accessories for panning, receptors, subsills, mullions, caulk backers, snap trims, screens, and related coordination.

• Commercial aluminum finish options for standard and custom anodized or painted finish review.

• Boyd Series 3250XT and the 2030 Challenge case study for an energy-conscious commercial project example.

• Architectural resources, CAD details, specifications, and product support for project documentation.