How to handle Portico addition and Whole House Roofing Job

Old 07-10-20, 11:40 AM
Thread Starter
Join Date: Mar 2008
Location: US
Posts: 225
Upvotes: 0
Received 0 Upvotes on 0 Posts
How to handle Portico addition and Whole House Roofing Job

I am planning to have a 9 ft width x 6 ft deep portico addition over the front door of the house. The portico will have a gable roof that intersects the existing roof to create a valley on each side.

The whole house needs a new roof and the general contractors want to install the new roof with the portico addition. I would agree this is the best way to do it if it is a good roofing job. The GC would sub out the roofing work and I am concerned about the quality. I prefer to have the reputable roofer do the roof for the whole house and portico.

The issue is how to handle the job scheduling and workmanship responsibility if I split the job between the GC and roofer . Most of the GC I spoke to want to install the roof singles to warranty their work. The roofer wants his materials for his warranty

Some of the options are:
Have the GC install the roof system the portico and have the roofer tearoff and reroof the the portico and whole house.
Leave just a UV resistant underlayment and have the roofer complete the single install.


Old 07-10-20, 12:49 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 26,667
Received 1,811 Upvotes on 1,628 Posts
Just tell the GC to "dry in" the addition, including the valley, if that is what you want. You are calling the shots, he works for you, not the other way around. This means your roof will have ice and water shield down the valley, and they will tuck roof underlayment under the existing shingles, making it water tight until such a time as your roofer is ready to shingle it.

By having his roofer (subcontractor) do it, he is just making easy money off of you... if you let him.

If you trust the GC to hire a good roofer, then there is no problem having them do it all.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: