B Vent Storm Collar Installation

Page 26 6 inch oval gas vent for installation in 2 x 6 stud walls storm collar mh6375 category i appliances only ensure at least 1 inch clearance to all roof flashing combustibles including the area the pipe passes through the roof.

B vent storm collar installation.

I used the same on my storm collar but a good quality caulk should be fine. Positioning the storm collar around a double wall type b vent is important to prevent water penetration. Clamp bracket securely to pipe section using the. B for single story attic less installation ventilate the flashing and leave open.

Once the storm collar is positioned properly a bead of metal flashing sealant should be. Spacer straps at each succeeding ceiling level. If it is necessary to do this enclose the outside portion of the sys tem in a chase as shown in figure 11. Simpson dura vent does not recommend installation of b vent pipe on the outside wall of a building particularly in cold cli mates.

After cutting the hole i used a flat bar to lift up the shingles all around where the flashing would go. The new and improved amerivent type b gas vent features a quick disconnect system. Aluminum 020 inner wall galvanized 021 outer wall. Position the collar at the top of the chimney pipe with the angled edges pointing downward.

Snap lock pipe and fittings together or align the seams push together and twist at least 1 to lock. Pass type b gas vent through opening in fire stop support fsp. Use storm collar for 4. Slide it down the pipe and fit it at the upper rim of the roof flashing.

It would be wise to consult the local authority prior to construction. Install support bracket as shown in figure 1. Attc ventilation shield in all attics where ceiling plate spacer straps are used. Round type b gas vent 18 3.

Type b gas vent 3 to 12 diameter installation instructions 3 figure 2 figure 3 nail strapping in place four places nail through slots four places figure 4 nail through slots four places 4. Install oval flashing storm collar and oval vent 1 inch minimum cap. Simply realign the seams and pull apart. To ensure a secure fit push in the locking tab to lock the pipe together.

1 clearance to combustibles in single and multi family dwellings.