Practical hints to builders and those contemplating building / Facts worth considering relating to foundation, cellar, kitchen, chimney, cistern, brick-work, mortar, heating, ventilation, the roof, and many items of interest to builders.

by National Sheet Metal Roofing Co.

The National Sheet Metal Roofing Co., 510-520 E. 20th St., N. Y. City.

THE “ATTIC” SKY-LIGHT AND VENTILATOR.

This is a novelty in roof ventilation, and possesses the advantage of admitting light as well as ventilating rooms in the garret or immediately under the roof.

It can be used on any kind of a slope roof having a pitch of three inches or more to the foot. The front is of double strength glass which is held to its place by a single catch. When used as a ventilator the glass is drawn back to the slant of the roof, and sheds what water would enter the opening during a rain storm. All the carpenter work necessary in setting the “Attic” is to saw a square hole through the roof boards at the time of putting on the roof-covering. We make them to form one plate of our Broad Rib Roofing with which it interlocks. As shown on [page 55], they can be used equally as well on roofs to be covered with slate or wood shingles as with our Tin Shingles.

HOW TO SET A FINIAL.

Bore a hole in the upper end of the centre-staff and insert in it the lower end of finial rod; when the centre-staff is put to its place, plumb the finial rod by moving the lower end of the centre-staff before it is nailed to the floor or cross timbers. ([See page 74.])