OCR Text |
Show Roofs Should Have A Solid Support A soundly constructed roof deck is considered as important to the tire house. Roofing material can-structed can-structed foundation is to the entire en-tire house. Rofing materialo cannot can-not be expected to give its full service ser-vice if the deck which supports is is in poor condition. A wood roof deck to be covered with asphalt shingles should be constructed of well - seasoned tongue and grove sheathing not more than 6 inches wide, says the Asphalt Roofing Industry Bureau. Wider sheathing boards are not recommended because they might shrink enough to buckle the roofing roof-ing material after it has been applied. ap-plied. Boards should be tightly matched. Each board should be fastened to each supporting rafter with two 8-penny nails, one through the face of the board and the other through its edge. Badly warped boards or boards with excessivaly resinous areas or loose knots should not be used. Any defects noticed after the sheathing is applied should be covered with sheet metal patches before the roofing material is laid. |