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Scarcity ofquality sidewall material places real importance on the No.2 Certigrade shingle. Builders, contractors and dealers are taking advantage of the fact that the No. 2 shingle is readily available and has many valuable uses.

Grading rules require that all No.2 Certi. grade shingles be clear of defects for 12 full inches from the butt. Standard exposure pro. vides three layers of cedar shingle over every inch of roof. So, by using the No. 2 Certigrade, - you are assured that two of these layers are olways all clear. By actual test, an average of 8676 of No. 2 Certigrades are all clear for their full length-86% are better quality than grading rules require! Overcome the difficulty of obtaining scarce materials by using Certigrade No. 2's wherever possible.

THIS attractive Portland, Oregon, home contains plenty of Dougles fir plywood, but it's mostly "behind the scenes'oin wall sheathing, in roof sheathing, in subflooring. Built on a hill-top lot with sweeping view, the house is subjected to ' sweeping winds as well. Kenneth Striker, the original owner, says: "In spite of the wracking action of the wind, the Plyscord sheathing kept the structure so rigid that after four-and-a-half years there were only four small plaster cracks, due to atmospheric conditions rather than structure. When I build again, Plyscord will be a 'must'in the specifications." The present owners, Mr. and Mrs. John Dierdorff, who purchased the house in 1944, say the house is still rigid and tight, and has required an absolute minimum of maintenance. Architect for the house was Richard Sundeleaf; builder. was Julius Zink.

PIYI\IOOD'S NANY ADVANTAGES K:EP DETANDS GREATEN HAN SUPPI.Y Plywood production is greater today than pre-war. But de. mand is unprecedented, That's why Douglas fir plywood may not always be readily available. Check your-rlsular source of supply for price and delivery information.- For technical data,-write the Douglas Fir Plywood Association, Tacoma 2, Washington.

I. E. MANTIN Mcncging Editor