“American Top 40,” a weekly radio show that keeps track of the 40 most popular songs in the U.S., has been a favorite program for many over the last 40 years. People like it because it tells them who is hot and who is not.

For the same reason, our editors like to know which products from our pages made you stop, look, and seek out additional information. And we think you’d like to know as well, so we’re happy to offer you our annual top 50 products list. Based on reader service requests, the list gives us a glimpse into the psyche of the home building industry over the past year.

What did this year’s list reveal? For one, home builders are very much interested in energy-saving products. You’re intrigued by insulated siding (which counted for four of the top 10 products), tankless water heaters, energy-efficient HVAC systems, and high-performance windows.

But other products also caught your eye; the list below includes the most popular of them among Builder readers in 2011.

Top 10

1 Timber Products Co. radiant barrier plywood panels

2 Boral Stone Products faux stone veneer

2 Johnson Hardware door hardware

4 Rollex Corp. insulated steel siding

5 Uponor Corp. hydronic heating panel

6 Porter-Cable thermometer

7 CertainTeed insulated vinyl

7 Exterior Portfolio by Crane insulated vinyl

9 Alside insulated vinyl

10 Genova Products glass railing

Readers' Choice 11-20

11 A. O. Smith Water Products tankless water heater

11 ClimateMaster heat pump

11 Marvin Windows and Doors window

11 Exteriors by Ply Gem insulated siding

15 Simpson Strong-Tie screws

16 BR-111 wood flooring

17 INAX USA toilet

18 Lenox tool bags

18 Thermador steam range

18 Zephyr range hood

Reader's Choice 21-30 

21 HomeRight paint sprayer

22 Trü Faucets/Premier Copper Products faucet

23 InSpire Roofing/The Tapco Group roofing

24 Custom-Bilt Metals roofing

25 JELD-WEN custom window

25 Schlage door hardware

25 Speakman showerhead

28 Bulbrite bulb

28 DaVinci Roofscapes roofing

30 Besa Lighting lighting kit

30 Masonite interior door

Readers' Choice 31-40 

32 CertainTeed solar roofing

33 CalStar Products pavers

33 LiveRoof/Hortech green roof

35 Fulgor Milano cooktop

35 Watermark Designs shower drain

37 Mythic Paint paint

38 Hudson Valley Lighting lighting

38 Xylem Group bath furniture

Readers' Choice 41-50 

40 Kalamazoo Outdoor Gourmet dishwasher

40 Ridgid saw

40 Tech Lighting wireless speakers

43 Pella Corporation vinyl window

44 Baldwin Hardware door hardware

44 Masterchem Industries primer

46 Benjamin Moore & Co. paint

46 Kelly-Moore Paint Co. paint

46 Moen bath accessories

49 JELD-WEN windows and doors

50 Lenova sink