Shed Plans Shed Roofing and Weatherproofing 2

Question 1

What is a 'gambrel' roof style commonly seen in barn-style shed plans?

Accepted Answer

A roof with two slopes on each side, the lower slope being steeper

Answer

A gambrel roof has two different slopes on each side — a steep lower slope and a shallower upper slope — maximizing headroom and loft storage space.

Question 2

Which nail length is typically used to fasten asphalt shingles to a shed roof deck?

Accepted Answer

1-3/4 inch roofing nails

Answer

1-3/4 inch (or 1-1/2 inch minimum) roofing nails are the standard fastener for asphalt shingles, penetrating through the shingle and fully into the decking.

Question 3

What is the purpose of a 'starter strip' when installing asphalt shingles?

Accepted Answer

To seal the eave edge and prevent wind-driven rain from getting under the first course

Answer

A starter strip is installed along the eave before the first course of shingles to seal the spaces between tabs and prevent wind uplift and water infiltration.

Question 4

On a shed with a metal roof, what prevents screws from causing leaks at penetration points?

Accepted Answer

Rubber-gasketed (EPDM) hex head screws

Answer

Metal roofing screws have an EPDM rubber washer under the head that compresses when driven, creating a watertight seal around each fastener hole.

Question 5

What is 'ice and water shield' and where is it installed on a shed roof?

Accepted Answer

A self-adhering waterproof membrane installed at eaves, valleys, and penetrations

Answer

Ice and water shield is a self-adhering rubberized asphalt membrane that seals around fasteners and protects vulnerable roof areas from ice dam water infiltration.

Shed Plans Practice Test

Shed Plans Practice Test

Shed Plans Shed Roofing and Weatherproofing 2