CCS Chimney Waterproofing & Sealing 2

Question 1

What is the recommended application method for masonry waterproofing sealant on a chimney?

Accepted Answer

Two thin coats, allowing the first to penetrate before applying the second

Answer

One heavy coat for maximum penetration depth

Answer

High-pressure spray to force sealant deep into pores

Answer

Mix sealant with water at a 1:1 ratio before applying

Question 2

What is the primary function of chimney flashing?

Accepted Answer

Create a watertight seal at the junction between the chimney and the roof

Answer

Redirect chimney draft and improve draw efficiency

Answer

Protect the chimney cap from wind-driven debris

Answer

Distribute heat evenly across the chimney exterior in winter

Question 3

A complete chimney flashing system consists of which two main components?

Accepted Answer

Base (step) flashing and counter flashing

Answer

Cap flashing and apron flashing

Answer

Primary flashing and secondary safety flashing

Answer

Ridge flashing and valley flashing

Question 4

What is the purpose of a chimney 'cricket' or 'saddle'?

Accepted Answer

A peaked structure built on the high side of a chimney to divert water around it

Answer

A hinged metal cap that opens to allow ventilation and closes in rain

Answer

An expansion joint system built into wide chimney flashing

Answer

A sealant bead applied around the entire base of the chimney

Question 5

Which sealant material is NOT appropriate for sealing chimney flashing joints?

Accepted Answer

Standard interior latex caulk

Answer

High-temperature rated silicone caulk

Answer

Urethane-based roofing sealant

Answer

Butyl rubber flashing tape

Question 6

What electronic tool can detect hidden moisture within chimney masonry not visible to the naked eye?

Accepted Answer

Pin or non-invasive moisture meter

Answer

Infrared thermometer pointed at the chimney surface

Answer

Multi-gas detector calibrated for water vapor

Answer

UV inspection flashlight

Question 7

A chimney on the downhill side of a roof ridge that is wider than 30 inches generally requires which water management feature per best practice guidelines?

Accepted Answer

A cricket or saddle on the high side

Answer

Double counter flashing on all four sides

Answer

An additional row of step flashing on each side

Answer

Hydraulic cement applied at the base