#44 Demilec. Sealection Agribalance is an open-cell, semi-rigid polyurethane spray foam for residential buildings that contains more than 20% renewable agriculture-based products (refined vegetable oils). The product creates a healthier, quieter, and more energy-efficient environment by providing a high R-value and sealing cracks, gaps, and voids in attics, walls, and ceilings, according to the manufacturer. 817.640.4900. www.sealection500.com.

#45 Premier Building Systems. Sandwiching expanded polystyrene between two layers of OSB, the maker says its SIPs offer a 55% higher whole-wall efficiency than traditional 2×6, R-19 construction. By creating a virtually airtight building envelope, the panels’ energy efficiency can lower homeowners’ expenses up to 60% and reduce necessary HVAC equipment size by as much as 40%, the maker says. 800.275.7086. www.pbssips.com.

#46 Supress Products. One layer of Supress Sound-Engineered Drywall provides the acoustical performance of up to eight layers of standard drywall, according to the manufacturer, making it ideal for a range of applications, including multifamily properties and home theaters. The panels require no special tools, finish like regular drywall, and can be installed over existing standard drywall with no demolition. Panels come in 1/2-, 5/8-, 3/4-, and 1-inch thicknesses. 800.456.4061. www.supressproducts.com.

#49 WinterPanel. The company offers SIPs in three panel types: StructureWall, CurtainWall, and PineClad. StructureWall panels, which replace studs and rafters, are twice as strong as a 2×4 wall, according to the firm. CurtainWall panels, ideal for timber-frame or metal-frame buildings, include an interior skin of gypsum for finishing. PineClad panels offer the benefits of StructureWall but with an interior finish of tongue-and-groove pine. Foam cores are available in expanded polystyrene or polyisocyanurate. 802.254.3435. www.winterpanel.com.

#51 Rheem. The manufacturer has added an intermediate-size gas water heater to its residential tankless line. Designed for single-family homes with two bathrooms, the RTG-53 provides up to 5.3 gallons of water per minute. It is available in indoor direct-vent, indoor power-vent, and outdoor versions. 866.720.2076. www.rheem.com.