Houses must also have wood roofs and masonry chimneys.

Older masonry chimneys are also dangerous if they have substantial vertical extension above the roof.

For retrofit, additional supports may be added; however, it is extremely expensive to strengthen an existing masonry chimney to conform with contemporary design standards.

A house with a masonry chimney and wood or brick siding will hold its value.

To minimize downdrafts, masonry chimneys usually have a concrete cap at the top similar to the one shown in the drawing.

And if the insulation is unfaced or if the facing is removed, it can safely come in contact with masonry chimneys.

I duck my head in shame and mumble that I cannot afford a masonry chimney.

A slate roof and masonry chimneys were rebuilt in almost identical form to the originals, but Wright chose to leave out the second floor walls.

If the flue is not enclosed in a masonry chimney, it should be double-insulated steel.

An additional two foot metal chimney chute rises above the masonry chimneys.