Plumb­ing vent boots

The Family Handyman - - DIY ESSENTIALS -

Plumb­ing vent boots can be all plas­tic, plas­tic and metal, or even two-piece metal units. Check plas­tic bases for cracks and metal bases for bro­ken seams. Then ex­am­ine the rub­ber boot sur­round­ing the pipe. That can be rot­ted away or torn, al­low­ing wa­ter to work its way into the house along the pipe. With any of th­ese prob­lems, you should buy a new vent boot to re­place the old one.

How­ever, if the nails at the base are miss­ing or pulled free and the boot is in good shape, re­place them with the rub­ber-wash­ered screws used for metal roof­ing sys­tems. You’ll find them at any home cen­ter with the rest of the screws. You’ll have to work neigh­bor­ing shin­gles free on both sides. If you don’t have ex­tra shin­gles, be care­ful when you re­move shin­gles so they can be reused. Use a flat bar to sep­a­rate the sealant be­tween the lay­ers. Then you’ll be able to drive the flat bar un­der the nail heads to pop out the nails.

Rub­ber­wash­ered screw SO­LU­TION: Re­place the old boot. Screw the base to the roof with rub­ber-wash­ered screws. Don’t use nails. They’ll just work loose over time.

Nail holes PROB­LEM: When the source of a leak is gas­ket-type vent flash­ing, the cul­prit is usu­ally a cracked gas­ket or miss­ing or loose nails. Rot­ted gas­ket

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