Tried The Typar Synthetic Underlayment-nice!

IHI

This addition is falling victim to the weather gods and we I wanted roof deck sealed prior to rain, but we did'nt want the headache of felt paper and the wrinkles it leaves when wet....wanted to be able to show up after the rain and roof, so I bought a roof of the Typar synthetic roof paper- 4'x250'

Entire roll is lighter than 1 roll of 15lb felt. Inital layout was alright-just like tyvek of other building wraps, but I like it covered more area faster with the 4' height, thought it might be slippery but it is not...kinda of a tacky feel to it even though surface is smooth.

After the sun beats on it the stuff literally shrinks taunt so it is like having a rubber membrane roof, very cool!! Then after the rains this weekend we started laying shingles yesterday and this stuff is stickier when wet...just like a basektball court we could make our tennis shoes sqeek by jamming or shoes into the stuff at the right angle...very good wet application and much stronger than any felt I've walked on for piece of mind.

House is only 5/12 pitched so not real steep, but steep enough. I'm sold on it and will be using it again in the future, definately a few more pro's to it than felt paper and worth the few extra bucks to buy.

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Grumpy

It costs more but do you think you made up for it in production? Did you use staples or button caps?

MJW

I'm curious also. We are doing a 8/12 pitch tear off now and we can't use our lift. arrrrrggggghhh It would be nice to have something not so slippery like the cheap tarpaper some of these yards have.

Grumpy

On a 8/12, 30# isn't so bad. 15# rips easily. We 30# everything.

IHI

Grump, we used our plastic cap nailer like we use for wrapping tyvek on structures that will sit awhile before siding, but we did one section with roofing nails too-through the gun with tip adjusted so it did'nt blow through and this section held every bit as good as the plasti caps on the rest of the roof. It was weird when we first laid it out we pulled it and moved it taunt to get the wrinkles out, but once we started nailing it would start getting small ripples....anybody that's tyveked a building knows what I'm talking about. it rained the next 4 days and then the 5th day we were back and sun was shining and the stuff laid flatter than anything I'e ever seen before...and it was tackey.

Did it speed production? sure-we gained an extra foot per section since this stuff was 4' instead of 3'. The HC we got it from is getting the new 5'x200' rolls so that will be even faster with less overlaps...not that it hurts anything overlapping. I just like the fact it's 30lb felt strong..actually stronger since like tyvek you cant rip it by hand, but is as light or even lighter than 1 rool of 15lb asphalt felt....and this roll is 10sq

MJW: are you setting toe boards on the 8/12 or walking it...I ask cuz I've seen crazier things. If walking the 8/12 I think I still might go with 30lb felt. Even though this was only a 5/12 we did it was only 18sq so I did'nt get alot of "feel time" to judge if I'd trust it on anything over 6/12 with no toe boards.

Overall I think it's worth a try to see how you like it, the added inital cost is offset by speed of installation IMO so that's a wash in the big picture. I've been waiting to try this new stuff out, and will definately be specing it out every job from here on out. Being how we shingle right away we'll just install it with roofing nails from here on out, but if ti's a structure that will see rain before we can shingle and I want inside weather tight, then we'll use plasti caps to help make it as weather tight as possible.

Also it did say on the directions you can use it in valleys, but we'll stick with ice barrier for the piece of mind factor.

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MJW

We had to set toe boards when the sun hit the paper. When we shingled the sun wasn't hitting us, so we didn't need any boards.

I agree 30lb. or this Typar would be better for the steeper pitches.

joasis

Seems like IRC says 30# felt for 4/12 and greater. But I am not going to dig out the book to read it...

I will have to look into this typar product...sounds like triflex without the slipperiness...I liked it, but it was treacherous to walk on and metal roofing allows no luxury of toe boards...we rope off the peak and work up and down on everything over 8/12.

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