Enviro 50-029 owner manual Initial Installation, Qualified Installers Only

Initial Installation

QUALIFIED INSTALLERS ONLY

STEP 6. Once the pipe sections have been joined, and run up through the hole in the roof, slip an elbow strap over the exposed sections, bend the support straps outwards, and push the elbow strap down to the roof level, as shown in Figure 21. Tighten the clamp around the pipe section. Use a level to make sure the pipe is truly vertical. With roofing nails, secure the support straps to the roof. Seal the nails holes heads with non-hardening mastic. Trim the excess length of the support straps that extend out beyond the edge of the flashing.

	Vertical
	Termination
Elbow Strap	Storm Collar
	Flashing
	Roofing nails
Figure 21: Vertical Vent Termination Installation.

STEP 7. Slip the flashing over the pipe section protruding through the roof. Secure the base of the flashing to the roof with roofing nails. Use a non-hardening sealant between the uphill edge of

the flashing and the roof. Insure the roofing	Table 3: Minimum ‘H’ for Figure 22.
material overlaps the top edge of the flashing
as shown in Figure 21. Verify that you have at	Roof Pitch	Minimum Height
least the minimum clearance to combustibles
		Feet	Meters
at the roof line.
	Flat to 7/8	1	0.3
	Over 7/12 to 8/12	1.5	0.46
	Over 8/12 to 9/12	2	0.61
	Over 9/12 to 10/12	2.5	0.76
	Over 10/12 to 11/12	3.25	0.99
	Over 11/12 to 12/12	4	1.22
	Over 12/12 to 14/12	5	1.52
	Over 14/12 to 16/12	6	1.83
	Over 16/12 to 18/12	7	2.13
	Over 18/12 to 20/12	7.5	2.29
Figure 22: Height of Vertical Termination;
	Over 20/12 to 21/12	8	2.44
Reference Table 3.

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