Laserfiche WebLink
l �� <br /> � <br /> � <br /> •� i <br /> � �� <br /> sEcnor� <br /> c�� � <br /> � ANQ FRANIE <br /> � <br /> Flg�e 15 <br /> to avoid obstructions, it is important to <br /> support the vent pipe in order to avoid <br /> excessive stress on the Elbows.Wall <br /> � Straps�plumbers tape may be used <br /> �� far this purpose{Ffg. 16). <br /> (3)Wherever possible, use 45° <br /> Elbows instead of 90" Elbows.The <br /> 45°Elbow offers less restridion to U�e <br /> °KOR""� flow of flue ses and intake air. <br /> r.--ceur� 9a <br /> ��R Sfep 7. Slip the Roof Flashing over <br /> 1 ! the Pipe Sedion(s)protruding thraagh <br /> �`� ���• the roof: Use a non-hardening sealant <br /> WO°DX� beiween the Roof Flashing and the <br /> roofing to prevent water leakage. <br /> Secure�e base of the Roof Flashing <br /> Flg�e 14 to tfie roof with roofing nails. Ensure <br /> the raofing material overiaps the <br /> roofline_ Galvanized Pipe and Elbows �p�ge of the Roof Flashing (Fig. <br /> may be utilized in the attic,as well as 18). Verify that yau have at least the <br /> above the roofline. The galvanized minimum clearance to combustibles at <br /> 6nish is desirable above the rooflir�, the roofline and in the attic. <br /> due to higher corrosion resistance. Step 8. Continue to add Pipe Sections <br /> Notes: until the height of the system (before <br /> (1� If exact lengths or distances must �i�{��p��ts the minimum <br /> be met between Elbow oifsets or building cbde requiremeMs as <br /> elsewhere, use�Pipe Extensions ���in (Tab/e 3 and Flg. 17). <br /> to adjust onto standard Pipe Sections Note that for st�p roaf pitches,the <br /> (F�9• 151• vent heigM must be incxeased. In <br /> (2) If an offset is necessary in the attic �igh wind conditions, nearby trees, <br /> 14 <br />