Hermetic Architecture from TMRE
Or to be more accurate, there are two ways to enchant a building. One would be using Hermetic Architecture. You could perhaps contract a Master Mason from the Pillar of Hiram 
. The second would be to construct a lab around the tower, a series of wooden scaffolds and such. This could take some time though; building it, basic lab set up, and finished set up. Even with the use of the LoB ritual spell, it would still be very large and would need to have various Virtues installed or take the Empty Flaw multiple times. And it would surly have the Exposed Flaw.
Arachné ponders what's been said.
That won't do. There's got to be a better way to do that.
Hum... I think I know.
Instead of 2 separate enchantments, why not create simply one enchantment, that would constantly supress all fires in the library? That'd be easier, and more efficient. Hopefully, this can be done as a lesser item, but even then, we should spare some time and vis*.
- PeIg base 4, +1 Touch, +2 sun, +2 room, +1 size = lvl 30, +4 constant = lvl 34. This would do nothing against magical fires, as they're too hot to affect, but would extinguish any mundane fire, including those created as a byproduct of magical attacks.
that is something active on the whole building already. But it was a magical fire and exceeded those limits. What we need is a fire suppresser, something that reduces the size and strength of the fire but does not extinguish it. That way you don't have to worry about blowing the size cap. Reduce the fire, and the soak ward & extinguisher can do the rest. We have that in the Master's Library (now our General Library, since those are the only books that survived).
But all that is just the Tim "Toolman" Taylor approach (put more power into it). We gotta think of ways around the problem. Make it hard or impossible for someone to attack the building with fire &/or burn books in the first place. Encase the tower in ice. Transcribe all of our books onto stone pages (magically thin and supple stone). Turn the tower invisible. Put a portal in the tower that leads to an underground chamber that is separate from the tower. Make double back up copies of every single book in our library. Let the dragon live in our library.
Just brainstormin'
We want there to be fewer fires in the library...
There are limits to what one can do.
If you've got already such an effect to extinguish fires, plus another one to ward of magical ones, there's not much you can add to the building. Any subsequent effet should be concentrating on other things, such as a MuAn(Te) effect on the books.
Awesome idea. We have a ward and extinguisher on the whole building, and a suppressor/reducer on the top floor.
Great, that protects the building. But what about the stuff inside it?
I like Fixers idea for a more direct approach, affect the books directly. Maybe the cabinets too.
what about something that turns the book into steel or stone or otherwise inflammable while it is on the shelf, but the book returns to normal when you take it off the shelf?
I would have gone with a MuAn base 5 (change something made of animal products in a Major Unnatural way), Doublet of impenetrable silk being base 04.
Add a Terram free requisite, to make the book as ininflamable as earth, yet still "book-like" in any other way.
Base 05, +1 touch, +2 room, +0 Mom, +1 size = lvl 25. Add 10 for unlimited uses per day, cast each turn, for lvl 35. I didn't make it a constant effect, so that new books added to the library would be affected, and book taken out would revert. This also limits Warping
And that would be the problem. 1 point per year, meaning Warping 1 in 5 years. Although Warped books ARE cool and magical, so to me, it's a bonus.
If the Effect Level is 25, that doesn't Warp. It's only when you get to Effect Level 30 (35 with the House Rule) that you run into Warping. Stuff that raises the Enchantment Level doesn't inflict Warping.
Does the Librarian have veto power on this? Because dragons are getting vetoed. 
Love this.
So we're talking about a lesser item that affects everything in the tower? How many seasons would it take Arachne to make this, assuming a +6 from Mica?
A lesser item can only be made in a single season. If you can't crank it out in a single season, you can't make it.
It's not the level of the effect that inflicts Warping in this case, it's the constant effect.
But that's assuming items are subject to Warping the same way that people are-- and personally I don't think they should. It's not like an object needs to roll for Twilight.
There still is Constant Effect warping, 1 per year, which will result from even a level 5 effect.
And magically warped books are indeed cool
Wow. I've been running this incompetent enchanter for far too long.
For powerful effect, yes.
But these would be active all the year, meaning 1 WP for being under a constant mystical effect.
It's a lvl 35 item, meaning lab total must be 70 
.
No way she can do it.
Back to the drawing board...
This doesn't work with these guidelines IMO. As a Momentary effect cast each round, that means every six seconds, each book would turn into stone for a split second and immediately revert to its original form. Which doesn't protect them. So this effect would have to be at Diameter, and then be cast 720 times a day, to work as a "constant" effect.
The constant enchantment would work, you'd just have to wait until the next sunrise/sunset for the effect to start or stop. But then the base effect would be 35, so we'd warp from the effect level AND from the constant effect.
But this effect doesn't have to be on the entire room, because 1) the books aren't touching the room directly, so Touch/Room would only work if we were leaving the books on the floor or putting them directly against the walls (I hate backless bookshelves, personally), and 2) there's a whole lot in the room that's not books. Put the lesser enchantment on a bookshelf!
Base 5, +1 Touch, +1 Concentration = Lv15. Add 5 for item maintaining concentration and 10 for unlimited uses per day. Total item effect level is 30, so, a little more accessible to craft, AND, the way this is designed, the book turns back into its original form the moment you take it off the shelf, and turns into stone again right when you put it down.
Vulc can definitely do the enchantment if it's an invested device and he uses Elder Runes, but that is a waste of vis unless there's other enchantments that would go into the bookshelf, and with Elder Runes then Vulc would be the only one who could enchant it. Plus I'm not sure there's any MuAn effects that would be that useful for bookshelf. I don't think he can squeak this out as a lesser item, but let's see...
Need a 60 LT to pull it off in one season, so...
5 Int + 6 MT + 5 Mu + 5 An + 3 Inventive Genius + 5 Aura + 4 bookshelf (S&M, protect things within) + 2 jet (S&M, protection) + 4 GQ + 2 Items specialization + 6 Egon + 6 Mica = 53. At 56+die roll, he has a 70% chance of pulling it off in a single season with experimentation at no exceptional risk (and there's another 20% chance it'll fail due to rolling a 7 or 8 on the extraordinary results chart), or he can definitely complete it if someone else assists with at least 7 Int+MT.
As an invested device, say, a bookshelf carved from jet, its vis capacity would be 16, it would have the +4 to protect things within and +2 to protection, and Verditius Runes to give an additional +6 to affect books (not that anyone here has a 12 Philosophiae, but still). If he made the bookshelf out of brass, it would have +2 to ignem effects instead of +2 to protection, and then the capacity would be 20 pawns, but because he'd be making the bookshelf with blacksmithing, it would only cost 13.
What if it was D: Concentration, and the item maintains concentration.
Are we enchanting each book or the whole shelf?
The whole shelf, or rather the whole lockable armarius. No sense going to all this trouble if the books can just be knocked off the shelf. And on that note, won't the armarius (or shelf) itself need to be protected against fire in a fashion similar to that of the books?
In either case, you're leaving out the triggering mechanism. If it's going to take effect every six seconds or every two minutes you'll need to add levels for some kind of trigger. Also, the effect Fixer described is giving the books a stone's 'quality of inflammability', not literally turning the books to stone. Reading them while they're under the effects of the spell won't be a problem.
Something else to keep in mind is we're not talking about a bookshelf, singular. We're talking about bookshelves (or armarii). We need to keep an eye on the risk/reward equation here. We're already talking about a (IMO, necessary) secondary defense mechanism, with the fire ward already in place. Let's shoot for something simple (and cheap) before we start pushing limits.
I don't think so, although I could be wrong.
As far as I can tell, Momentary spells are not "split second", they last "a moment", which, IIRC, can be a little over a round. I believe this was explained by David Chart for MuVi spells: You cast your MuVi spell in one round, and, the next following, cast the spell to be modified. So there's probably room for some overlap.
As it is, even if you consider that your spell only lasts one round (and one round only), if cast each round, this is probably enough to do the trick. What I forgot, though, is that we may need a Trigger +3 in order for this to work.
No.
A Room spell affects everything within the Room, period. If there's a flying human inside a room and you cast a PeCo room spell, he'll be hurt.
I don't want to turn the books to stone. I want a Major Unnatural change, to make them as ininflamable as stone, but not change them in other respect. That way, with a room +1 enchantment, you can take them and read them anywhere in the library, they are and stay fireproof, despite being "normal" books in every other aspect.
You've forgotten the Target. For a bookshelf, it would be Room, and the books would be unprotected outside of it.
And that's assuming our entire library holds in a single bookshelf, which I find hard to believe 
I'm at a loss at what we may do easily 
Sometime in early 1230, Solomon will track down Vulacanus and inquire about a Laboratory of Bonisagus…
“Sodalis, I wonder if I might ask a favor of you. I understand you are capable of caster the Laboratory of Bonisagus and I would greatly appreciate it if you would honor me by gifting my laboratory with it. Unfortunately I currently cannot pay you the vis for the casting, but I would be willing to enter into an arrangement to pay you back as covenant salaries are provided.”